This Secret Button Gives The Toyota 4Runner The BEST 4x4 System In The World!

[@TFLcar]

Nissan has been making adventure-ready trucks and SUVs for over 60 years. Learn more: tinyurl.com/232rrsuv

[@the_jarmel]

Blazeeeeee ❤️❤️

[@nowayoutstp4]

Why advertise for Nissan on a Toyota video 😂

[@g.fortin3228]

@@nowayoutstp4 yeah same thoughts here

[@fasteddie0318]

ASR is an acronym is the US for Anti-Slip Regulation! At least for Benz it is!

[@Sammy-db3xj]

The pathfinder is a “truck”

[@DashCamsMTL]

You know what’s best? Watching Tommy go from young expert to basically running the show. So so cool. Thank you for everything.

[@mkotrba2]

True. I was just thinking the other day of how much his camera presence has improved. Something people may not notice if they are just consuming the content.

[@MrKozanitis]

Kudos also to his Dad for encouraging him and allowing him to slowly (as he should) take over the show!

[@watchreport]

Agree, I think Tommy is great on here and no offense to anyone else but I’m more prone to watch a video if Tommy is hosting vs the others.

[@carlt8188]

Apple polisher

[@fredbrackely]

Agreed. Tommy has brought a great dynamic to the channel, and this has kept me watching for all these years.

[@LangDzu]

My 4Runner takes me everywhere I need for my Nature & Wildlife photography. Best vehicle I have ever purchased!

[@Anomize23]

@@mohammeds5458okay, the most durable SUV the 4runner is and thats been proven.

[@timothybernal3948]

@@mohammeds5458 the 4Runner is the LAST REAL SUV, at least 2024 with the V6.

[@dwightsmith9826]

My grandmother bought a 4Runner when she was 18 years old and its still running!

[@cruzlopez4449]

Probably the most comprehensive review of ATrac that I’ve seen so far.

[@LexusGX460-OFF-ROAD]

it's a phenomenal system... we're unable to get ATRAC "stuck" offroading

[@dantodez]

I own a 4Runner and i love it. this is my sequence on 4x4 when stuck, 2WD-4HI, 4lo, A-TRAC, Crawl control and if all else fails Locking the diff takes care of it. Tommy I am glad to see the knowledge, time and love you put in your videos.

[@morpheus1818]

Your sequence of progression makes sense. Where would you fit in Multi-Terrain Select (maybe it doesn't fit into a "stuck" scenario)? I've yet to find a good video that demos all 5 off road systems in a priority of use manner.

[@drivingimmersion6473]

I love watching the 4Runner. I wish you guys could do more but it does what it does and there ain't no more to see. As a former Toyota expert, A-Trac came about as a simple, no extra parts to wear and break, no rocket science solution to locking diffs. It still works today.

[@wildman1137]

LOL it's basic 1990's traction control. It's useless off-road or on an incline, brake-based TC is worthless.

[@geoffmooregm]

@@wildman1137 It works great for basic off roading or anything a stock 4Runner will encounter. It is not designed to be a replacement for front and rear lockers to go rock crawling. Also as you can hear it works the ABS system pretty hard and can over-heat, which is why it is not a locker replacement. Tommy even says that near the end of the video. I have it on my Sequoia and it works great going down logging roads and pipeline/powerline right-of-ways. I can cross a ditch no problem with one wheel off the ground and I don't have to carry a ton of momentum to make it. Just keep the same throttle position and let the brakes hold the spinning wheel. With my wife and four kids in the truck we can get to some pretty cool places in comfort and not trash our daily driver. For the crazy stuff I have my old trail rig with front and rear ARB lockers and mud terrain tires. It won't fit the whole family but it is a lot more fun and capable off road.

[@WheelsRCool]

That isn't true, plenty of AWD systems that are brake-based are very capable off road and there are videos of A-trac helping 4Runners off-road. No, the system is not a replacement for lockers, but it is only extremely hardcore terrain where you need the differentials locked constantly. Lockers for the front differential are rarely engaged even in hardcore situations, and if so, only momentarily to get out of a bad situation.

[@WheelsRCool]

4Runners also can be equipped with lockers aftermarket. The 4Runner off-road variants come with a rear locker equipped.

[@snigs5T5]

@@WheelsRCool ​ or you could just get them standard in a ZR2 and not goof around. And as a bonus, the ZR2 comes with real AT tires, not those garbage no-seasons. You Toyota fan boys are hilarious. Even the "pro" model uses this band-aid.

[@LowRoller420]

My SR5 with A-Trac has taken me everywhere I wanted to go. It does make a lot of noise though. My buddies have 2 door wranglers and make fun of the wagon but I still hear them say "that A-Trac kicked in and you went right through it" when spotting me. Having good AT tires vs those all seasons makes a big difference too.

[@thomasprzybylski3690]

Nice to see the rollers come back. Now that TFL has all this property, it would be nice to see a concrete pad built on a slight slope. That would really separate traction control systems.

[@natehoule567]

This ^

[@kenwrob]

For older 4wd vehicles that don't have traction control or a locker, you can use the parking brake to simulate what A-TRAC does. By partially applying the parking brake, it can help divide torque between both rear wheels. This trick can work in any rear wheel drive vehicle.

[@eriknash8783]

Same can be done in 4WD or FWD and just modulate the brakes while under acceleration and this can often get you unstuck.

[@WilliamFoster1]

Most newer vehicles have automatic parking brake- no manual option

[@theinternets7516]

This is the best demonstration of A-Trac I've ever seen. I'm truly impressed. This has dramatically increased 4Runner on my potential new 4x4 list. Thanks Tommy. This was awesome!

[@80for80]

What other 4x4 vehicles are you looking at?

[@theinternets7516]

@@80for80mainly Bronco and 200 series Land Cruiser. Others that were lower on the list were 4runner, grand Cherokee trail hawk, and Yukon AT4.

[@skoolynugenator1802]

@@theinternets7516 get a 4Runner. You won’t regret it.

[@sevendewey]

My 4Runner may only have 33’s and 10” of clearance but because of this feature it is a lot more capable vehicle off-road than one might think. I’ve only used my rear locker on difficult trails but 90% of the time A-TRAC gets the job done. I rarely use MTS or CC except I will way crawl control can be incredibly useful when defending a steep/rough trail. But for most people a non-TRD model will get the job done

[@jameskocks4734]

in other words SR5 4 wheell drive for a discount with the option to do lockers later on.

[@05EVORS]

​​​@@jameskocks4734 exactly what im doing on my '17 SR5 3row. 4.56's and arb air lockers. BC 4Hi and locked should be able to work for certain road conditions w/o waiting on software to engage, + no clunky brake noises in 4Lo. If your on 33" rubber regear is needed anyway from the 3.73's and 35s will fit w minor beating of wheelwells you might as well do lockers while your in there. All the money you save on an SR5 throw at a supercharger and lockers/regear....and look HARD at the Marlin Crawler RCLT front end kit w 1 ton axle strength and LC80 steering rack for when you are locked to be reliable.

[@rundownaxe]

I thought crawl control was more of a gimmick than anything else until that one time it saved my truck. Parked facing upward on an inclined and off camber driveway at an off grid cabin. There is a ditch on the low side that would swallow the truck for the winter if it did not damage it. I had to back out of there on pure ice. I could not control speed and direction at the same time. Either I could stear but not slow down or I would lock all 4 wheels and slide down ever so close to the ditch. Not enough traction to climb back up either. The crawl control blew my mind. I set in on the lowest speed, angled my wheels away from the ditch and let off the brake in reverse. It worked a miracle. It felt so weird feeling single wheels brake in rapid sequence while sliding. But it kept me slow enough and gave me enough steering authority to get out clean. Imagine those videos of people sliding down steep frozen roads with 4 wheels locked. Crawl control does miracles there.

[@MrAKhiker]

As always, great presentation! As an old school guy, we used the “poor man’s locker” by slightly applying brakes while the wheels were spinning . The electronic stuff, red tow hooks, 360 cameras, etc. is very cool. But let’s not forget the basics. I would love to see you try this technique on the Explorer.

[@astro2456]

Where is mistubushi

[@JF-lt5zc]

Ah! That's what my WK2 needs! Red Tow Hooks! I consider my WK a very light duty off roader. No colored tow hooks, no manufacturers badges. Just a well appointed luxury SUV that I put 32s on. Gets the job done. Amazing what manufacturers will do to their rigs to cash in on the off road craze of today.

[@that.schamp]

@@astro2456 Mine is passing Ferraris on track... The fact that is has a better 4WD system than the Tacoma TRD Off Road towing it is lost on people because it has 3" of ground clearance =D Seriously, the legendary Mitsubishis principally accomplished these goals mechanically. Sales in the US rarely included the good bits, and the Pajero/Montero isn't even sold here anymore, so it's not going to get a mention from a journalist covering current models, most of which have this eLSD junk.

[@angelgjr1999]

Used to do this in my RWD 1999 Explorer. Never got stuck even with just RWD. Just use a little handbrake to get unstuck. :)

[@astro2456]

@@angelgjr1999 what is the principle that's happening there?, won't both tires get locked up over there?

[@gregchurch]

I agree that the 4runner with A-Trac performs very well off-road in 4WD-Low. It only operates at ~5 mph or slower. The A-trac system has prevented me from ever getting stuck. I have driven every type of terrain (mud, sand, ruts, rocks, mountains, etc.) and never gotten stuck. Granted I am not an idiot and don't drive into unreasonable situations, like a deep clay mud pit. Lock-differentials are great and highly over-rated when you have A-Trac - a great alternative system.

[@vanisshen4467]

I'll never get tired of watching these demonstrations even though my 4Runner almost never leaves pavement.

[@JF-lt5zc]

Love the honesty. I look at my WK2, which I take on dirt tracks and railroad sidings. 99% of the time it is a comfy road going SUV that gets decent gas mileage. I look at all the Wranglers on the road with lifts and hooks and stickers and think about their not so great ride and driving comfort and suspect that most of the owners would have been better served with the GC. Or, as I put it, The JK/JL is the jeep that they think they wanted but what they really were after was a WK.

[@StudioVoodooMusic]

It's nice to see these tests on a standard 4Runner 4WD transmission. I've always wondered if I made a mistake by not getting a locking differential and Crawl Control, but it looks like A-trac will be more than adequate for our needs. Thanks!

[@AG-rk5hj]

I have a 2011 Gx460, it doesn’t come with the A-trac button but it turns on when you’re in a hasty situation. It’s saved my butt a couple of times. Truly a great system

[@r6TrdSlow]

Love a-trac. Just went to Merus recently in a mildly modified 4R and I decided to not engage lockers at all and just use a-trac. It was amazing. Been testing out those systems for years now and love it. The terrain select on the TRD models is basically A-Trac but with a dial to turn it up or down in intensity and RPM/wheelspin allowed

[@LexusGX460-OFF-ROAD]

Love ATRAC ❤️ has never let us down yet!

[@DMEU77]

What happens when the breaks overheats? I saw a test with traction control, it has time limitation because of heating up breaks and smthg more (forgot what). Thats why lockers are there.

[@LexusGX460-OFF-ROAD]

@@DMEU77 I've never seen atrac overheat... the break pulses are rapid and temporary to send power to the other wheel...

[@eschweis]

​@@LexusGX460-OFF-ROAD The ABS system that is driving the brake pressure will eventually overheat. Cruise around in crawl control long enough and it will shut off due to high temp. I have experienced this in my 2020 4Runner and the owners manual mentions it as well.

[@geoffmooregm]

@@eschweis It is NOT a replacement for lockers. Tommy even says that near the end. But it it does a good job and will serve a stock 4Runner pretty well.

[@johndtayls8141]

After watching a ton of videos trying to find a concise explanation of the 4Runner 4 wheel drive features, this is bar far the best and more informative video I’ve come across. Thanks for the clear explanations and effort made to show case how the system actually works. This is how it’s done. Thank you

[@rustyhumphrey9457]

Great explanation! As a long time 4Runner owner, I never understood the difference with A-Trac. Incredibly helpful video!

[@1guyin10]

In older vehicles with open differentials you can usually bump the brakes and get the differential to shift to the other side. That's the original traction control system.

[@astro2456]

cool, but won't it break both the tires at the back? what's the principle over there?

[@bayou_angler87]

@@astro2456 it does, but you can modulate the brakes versus just slamming them on. The throttle will power through the brakes. The braking just makes the torque transfer to the tire that has traction.

[@astro2456]

@@bayou_angler87 Will this technique also works on manual ? I own a manual, I was planning to install some fiddle breaks to mimic the traction.

[@bayou_angler87]

@@astro2456 I would think you would need to do some magic footwork to modulate the brakes as well as the clutch and find that third foot to mash the accelerator lol.

[@astro2456]

@@bayou_angler87 oh I wish I had functional third leg 😂 will put a accelerator lever behind the steering.

[@The_Mister]

Been saying for years, any SR5 with A Trac is 90% of a TRD Pro. People think they need a TRD Pro to go off-road, but that’s just silly.

[@ShenmueAtheist]

Very true, nearly every 4x4 trim level does 99% just as good as a pro. The only exception is the Limited, which does a great job, but it's not as competent off road as the other trims.

[@xJohnny_Ax]

@@ShenmueAtheist yeah my sister got a ‘22 limited, she wanted the luxury and capability combo. The only truck that’s better in that field is the Lexus LX IMO

[@Wavelover33]

It’s a great guy and even better with a Bernese in the back

[@TimeMariner]

Maybe 75%

[@panchovia]

@@ShenmueAtheist the limited does just fine. Just replace the bumpers, front and rear for better approach and departure angle. It is exactly the same as any other forerunner, except that it has full-time four-wheel-drive.

[@jimmy-buffett]

Great explanation of ATRAC! I've been a big proponent of ATRAC here in Colorado since getting my FJ in 2011 (now 4Runner). This spec of 4Runner seems to have just the ATRAC on/off toggle, rather than Multi Terrain Select (MTS) which works the same way but allows more or less wheel spin depending on your terrain type (mud, sand, rock). A front locker would be nice, but it's also nice to tell offroading groups in Ouray "turn your ATRAC on, leave your locker off" and not have to worry that anybody is using the locker incorrectly.

[@WheelsRCool]

You can also add aftermarket lockers to 4Runners.

[@canyonoverland5003]

Correct about ATRAC and MTS. I have a 2019 Tacoma with MTS. It's like ATRAC but the driver gets to select exactly how much wheel slip he'd (or she) like. Where exactly ATRAC falls in this continuum only Toyota can say.

[@JGr3asy]

Tommy, THIS was a great video. Very applicable for hundreds of thousands of 4R owners

[@willseeadventures]

Thanks for making this video Tommy, perfect example of the benefits of A-Trac. I purchased a brand new 4Runner back in late 2004 and I lifted it 6 months after purchase and wheeled it pretty hard over the 9 years I had it and so many folks were surprised how well it did, some legit thought it had lockers but all it had was A-Trac!

[@LexusGX460-OFF-ROAD]

ATRAC is better than lockers... truth

[@Turshin]

@GX460 OFF-ROAD naw you loose momentum with a-trac. I'm still a fan though.

[@LexusGX460-OFF-ROAD]

@@Turshin nope, not true.. watch our video at Cleghorn Ridge.. 45 degrees uphill with ATRAC on 3,2, and 1 wheel.. no momentum or traction lost...

[@normt430]

​@@LexusGX460-OFF-ROAD too bad none of the AWD suvs from Toyota/Lexus offer anything close to this...CH-R, RAV4, Highlander, NX, RX...

[@jeffchurch593]

@@LexusGX460-OFF-ROAD Don't wheel with folks with lockers!! Makes it easy to be opinionated! My gx has it ,my jeep is locked up front and rear. Massive difference, I can and do drive both, plus not Toyota biased. Put a selectable locker in the rear of your gx and enjoy crawling with much less wheelspin and no more clatter! You will thank me later.

[@Offshore1977]

Finally. I have been waiting for the 4Runner roller test. Thank you. This shows how effective ATRAC is. A tool many people forget to use. Now, if I can only get them to do a KDSS vs non KDSS comparison video.

[@jeanlucguerrier9288]

KDSS is unreal. I love it so much.

[@rikkd331]

even as an experienced overlander and off-roader I love the details with real world tests and the easy calming nature of your voice :)

[@theinstructor2687]

I have a 2018 4Runner TRD Off Road model. When I'm wheeling, in low range, I normally have ATRAC on and it goes anywhere I point it, with out much drama. When things get really extreme, since it's an Off Road model, I leave ATRAC on and engage the rear locker. It's a great four wheel drive system and very capable.

[@adamsanderson5217]

My 2020 TRD OR has gotten stuck on flat, wet grass... none of the fancy buttons or dials, in any combination got it out

[@theinstructor2687]

@@adamsanderson5217 Were you in 2 wheel drive, 4 wheel high range, or 4 wheel low range when this happened?

[@cj8489]

Tire quality and there pressure make a huge difference.

[@theinstructor2687]

@@cj8489 100% correct. I'm running KO2s and they are very good on the terrain where I live. I also have a system for airing down and up.

[@ahmadkhaled67]

Very good explanation. I own the same car. 4Runners that does not have diflock and I was a bit concerned as I take it off-roading in the desert every week. The A-Track has proved every time that it is a ver,y capable alternative to diflock.

[@bradmeacham6982]

A-Trac is a nice, inexpensive, traction control system. However, it (and others liken it) are "reactive" systems, meaning they only do their thing after wheel spin has been detected. True lockers in the rear and front differentials, as well as a transfer case that can send equal power to the rear and front axles (AKA part time, or a full time transfer case with a 4-loc position) are "proactive" systems. This means that if the driver is paying attention, they can lock up both axles and the transfer case before tackling an off road obstacle. Not only would the vehicle most likely walk right through the obstacle, it would do far less damage to the trail versus a "reactive" system that has to detect spinning tires before using traction control to send power to the wheels that actually have traction.

[@bradriney919]

Thanks Tommy, now I know that noise is normal and not a malfunction! I own a 4x4 2011 FJ with A Track with locking diff and did a multi experiment in sand to see how each system works. A Track did very well on it's own just like your test showed!

[@VK_Moudgalya]

I bought the above model last week in midnight black color and I LOVE IT. I am so glad I saw your video which is so educational. Thanks a lot for this awesome demo. I am not going offroading anytime soon, but it is always good to know what to do when stuck. I really appreciate this info and THANKS A LOT 😊👍👌

[@VOX471]

I just bought the white limited version today. Great rig.

[@lillagahnavich7700]

@@VOX471 TRD pro midnight black...so sweet

[@pwprochazka]

I have the TRD Pro. the best feature is the crawl control. I was headed down a snowy trail with a 6 ft drop off on the right. Braking with the pedal caused the tires to slide down the trail and I would have gone over the side in a turn. Crawl control let me go down hill slowly and it managed wheel slip so that I could keep moving very slowly without any slide. It's awesome.

[@cstyle1917]

Bought an old Land Cruiser 100 series last year. Chose to get a 2000 over a 98 or a 99. Stronger front diff, but more importantly it has A-Trac rather than a rear locker. Like having reaction control front and rear. Just keep it under 2.5k rpm and it'll take you anywhere.

[@paulelledge8977]

One of my favorite parts of a-trac is after years of the 4runner crowd saying traction control is a gimmick, it's all about lockers and old school mechanics, now loving traction control.

[@tarfeef101]

Great informative video. One thing people should not before thinking locking diffs are unnecessary is that traction control takes time. Especially if you're on steeper hills, and in loose terrain like snow, sand, or mud, that time means you dig deeper and slow down more, making the obstacle more difficult. Especially when you have AWD and/or no low range t-case, that can really hurt your ability to power out of where you encountered the issue in the first place. Whereas a locking diff (or multiple, for front/rear) you'd turn on before entering the bad section, and could avoid being stuck in the first place. But it's definitely better than nothing.

[@Offshore1977]

Actually in ice, a locking differential can cause you to slide. This system maybe slightly better

[@MissouriAdventures]

One of the things that’s nice about a Land Cruiser is that A-trac is always on. No button to push to engage it. And when you’re in low range it operates even quicker.

[@themouas]

So is the Nissan Frontier.

[@LeeEkstrom]

So is a Jeep 4x4 with Brake Lock Differential (BLD)

[@chipper203]

Yeah I was a little confused when I checked out a friends 4Runner and saw the atrac button. Atrac is always on in my gx470. And it works so good.

[@jayd3931]

@@chipper203 interesting. I have a 2017 Prado, which is essentially a GX460, and I have the A trac button. My vehicle is an always on 4WD.

[@chipper203]

@@jayd3931 my 470 is a 2004, and I have no atrak button. 🤷🏼‍♀️

[@CherokeeChief.]

This system on my 07 limited sequoia takes me places I shouldn’t go. It’s actually too capable sometimes. Pretty amazing.

[@mikegabler5183]

Same with my Tacoma. I have taken some light body damage because it can go where it shouldn't!

[@mannyechaluce3814]

like Oakland International streets picking up hookers, definitely places a family hauler should not go

[@azhonda666]

The Sequoia is so underrated. Just picked up an 05 to do a build on.

[@KyleJewell]

I just bought a 1993 Ford Explorer. It was never meant for any real major offroading. But it is a tank, im loving it in the snow.

[@lou135]

I love the A-trac and MTS in my 4-runner. I have only really thrown my rear-locker on to make sure it gets a work out and does not freeze up from lack of use now. Granted I have not done a lot that really requires the locker, but have definitely been in a few places where I would have been cross axeled and had to dual pedal my way out (basically manually trying to do what A-trac does) and the 4Runner just paused for a fraction and then kept going. It is great. My other favorite feature is the fact that crawl control works in reverse.

[@Jtwizzle]

Why does it have both atrac and mts though? MTS is just an adjustable atrac.

[@skippylippy547]

@@Jtwizzle Great question. I have no idea but would like an experienced person to tell us.

[@Jtwizzle]

@skippylippy547 Yeah, after a year of waiting, I was hoping someone had some info.

[@skippylippy547]

@@Jtwizzle I'll call the Toyota dealer and see if I can get an answer.

[@nastynatee88]

​@@Jtwizzle it is sort of adjustable atrac like you said but some modes like sand for example, will make the system less aggressive and allow for more slip, if it was aggressive in that scenario (loose deeper sand), you would more likely end up stuck since it would scrub off your speed quickly.

[@ericdownunder1957]

Agree 100%, got my first 4Runner (2024 TRD Off Road Premium) and yes it is unreal what it can do and its not my first 4X4 vehicle. Great videos, thanks.

[@JamesAmenta]

Excellent video! Thank you for this one. I have a new 4Runner SR5 and haven't had the opportunity to use the A-TRAC yet. This video explains the use pefrectly, can't wait to try it out!

[@jasonwescott3105]

I love the fact that my 4Runner has both A-Trac and a locking rear diff. Not many places I can't go. If I get it stuck I've accomplished something.

[@tuckerhiggins4336]

I just picked my 4runner up at the end of February. Enjoy it. Got some minor gripes, but it is great overall. I love now having all the new tech bs. I don't have to think to drive it

[@brufleth6299]

We've used A-TRAC on rutted self road switch backs. A guy filming people driving by (in a Jeep) even said the atrac system makes the 4runner more capable than it ought to be without lockers. We don't often use it but it works really well.

[@jrt77339]

I really like these roller tests on the many different vehicles. Knowledge of them help people make the correct choice when buying an AWD or 4X4.

[@4x4.tests.on.rollers]

These tests are great but they cannot be an oracle over the AWD/4WD/4x4 system.

[@WheelsRCool]

What do you mean?

[@4x4.tests.on.rollers]

@@WheelsRCool Roller tests show how the system reacts to different grip of wheels when you're starting or driving at low speeds. That's just a part of system ability, other is dynamic behaviour like cornering etc.

[@schwinnprotocol]

A-Trac is quite incredible. I always used to think computers were a joke in vehicles. Then, I got stuck in the snow last winter in my Tacoma. Turned on A-Trac and it pulled its way out in about 10 seconds

[@mrchuckles1552]

Thanks for the explanation & demonstration of the 4Runner's A-Trac system. I've always wondered what the button was for & when it should be engaged. I have a 2015 4Runner Limited model which actual has full-time AWD. I've never been off road in the 2 years I've owned the vehicle so haven't needed to engage anything other than AWD. Though I have engaged the different 4-wheel drive modes from time to time so that the actuators get some use & remain functional.

[@lrosengreen]

I love that 4Runner. You did a great job explaining ATRAC. Hearing Blaze panting in the background brought a smile to my face. Nice work Tommy!

[@SoCalFlyTying]

Great video. One of the best ATrac videos I have seen. I recently purchased a 23 4Runner Heritage Edition - White color and paused for a bit before buying thinking about what I wasn’t getting compared to an Off Road. Ended up buying it based on thoughts of where I will end up taking it. Your video pretty much confirmed my thinking and thoughts. 4Runner Pros and Off Roads are awesome but the SR5 with A Trac for most users is all that is needed. Thanks again. AP

[@LexusGX460-OFF-ROAD]

all you need is ATRAC

[@LexusGX460-OFF-ROAD]

ATRAC is always the answer. It IS a brake locking differential. We've tried to get ATRAC to get "stuck" on our GX460 and have yet to get it stuck... very excellent system and I will say superior to "traditional lockers"... 👏

[@petrnemecek4379]

Locker locks wheels to the same speed, TCS locks wheels to stationary position. It works good enough in many situations, but it is not better.

[@LexusGX460-OFF-ROAD]

@@petrnemecek4379 naw, ATRAC is better. Locker will have 25% to each wheel. ATRAC will send nearly 50% to 1 wheel if the other looses traction. On a locker if 1 wheel goes in the air the max the other wheel will get is 25% power..

[@DefundTheFringes]

Rivian is said to have the best system with fine electronic control of each wheel, truly independent. It also has a flat bottom with no differential sticking down. The problem is that Rivians are very heavy, for their size, not so great for downhill or other situations.

[@driftology]

The lack of a gear reduction can make trailing difficult. Those powerful motors build up power and rpm too quickly in some situations. It looks like it makes crawling through tough obstacles a little more difficult

[@rc51bigdaddy]

Thanks for another great video! Since I have a 4Runner with A-Trac I completely agree with everything you said:) Had my TRD Pro for almost two years now and love it. Most versatile vehicle I have ever owned.

[@mtbrdude]

You guys should do the same test with Nissan. I had a 2014 Frontier SV and, though there was no dedicated button, it had an extremely aggressive system in both 2wd and 4wd.

[@MarioLoco03]

I am so pleased that Nissan paid for this video. I had a nissan and it was all problems. Got a 4runner and it has been great!

[@cshader2488]

I have a TrdPro with the rear locker, and with the rear locked and A-Trac on it's an absolute beast. Have never been stuck once.

[@LexusGX460-OFF-ROAD]

same here... love ATRAC

[@frapsATV]

as you may or may not know, if you have a CX-30 with the same traction control system, and if you sink in a hole with the front left tire, the rear right will lift off the ground. The frame will also be sitting on the ground... and no matter how much you floor it, the active traction control system wont clunk enough to push your car back out because of the traction your frame has to the ground. Works great if you don't bottom out the frame on anything though. Like rollers for example

[@jodensmith5093]

Would love to see more off road videos with this trim level of 4Runner

[@cordellroberson532]

PLEASE make more videos like this, you have a talent for this Tommy. easy to understand while being technical.

[@andrewsnow7386]

Thank you, thank you, thank you for stating correctly at 3:15 that the torque is equal to both wheels with an OPEN differential! The rest of the video is excellent too, showing that a good traction control system is very useful. Now if only all the manufacturers would spend the time to figure out good programming for their traction control systems.

[@edwardamo]

Haha, yep, it drives me crazy how many reviewers get this wrong, too. It's amazing how many say a conventional 4wd transfer case or locked center diff means you're always getting equal power (and/or torque) at both axles.

[@4x4.tests.on.rollers]

@@edwardamo Not only reviewers get this wrong, many or majority marketing folders provide the same info. The problem is that people are focused on what they see by eyes thus they mix torque with rotational speed.

[@andrewsnow7386]

@@4x4.tests.on.rollers Yeh, but we would hope the reviewers are more educated on the subject. Of course even the manufacturers get in on creating confusion, saying their AWD system can send up to 50% or 70% of the torque to the rear wheels. As tests with rollers under the front wheels show, many can send nearly 100% of the torque to the rear wheels. Maybe they mean 50% or 70% of the maximum torque, but its not at all clear what the number really represents -- if anything.

[@Gilbertmk2]

I can attest to how well A-trac works. I take my SR5 off road at parks with a local group a few times a year. It keeps up with locked jeeps every time. In fact it's been so good I probably will never add a locker. My pet peeve is so many people don't understand how to use it. I've seen car reviewers get the 4runmer flexed out and apply too much throttle caused the vehicle to lurch. Then they proclaim A-trac wasn't enough and they use their locker. Nonesense, you need to apply minimal throttle, just enough to get the wheels turning so the system can sense the slip. Then you slowly increase throttle until you have enough power to move past the obstacle.

[@Kung.Pao.Kitty.]

We're on the market for a 4x4. The 4Runner is on top of the list.

[@josephcervo6026]

The only downside is MPG, everything else is great

[@Kung.Pao.Kitty.]

@@josephcervo6026 I see they (TFL) were using the 40th edition. That's what we're looking into buying. Yes, the MPG is a huge con. But, the reliability of that 4.0 is the enticing part. I'm apprehensive about the next gen 4R and the rumors of the 4cyl w/turbo. 🤷🏽‍♂️

[@josephcervo6026]

@@Kung.Pao.Kitty. I have a ‘22 TRD Sport, which is my first 4Runner and love the truck. I personally wouldn’t shy away from a 4 cylinder turbo or even a hybrid, so long as it’s coming from Toyota. Not to say they are the greatest out there, but it’s a brand I have my faith in and would trust given their history with various reliable power trains.

[@O-Heyguys]

I’m sorry

[@Kristian_Saile]

The newer Land Rover systems are a bit more seamless but A Trac is highly effective and underrated. I used to run a well equipped FJ Cruiser and found that ATrac worked better than just the rear locker and that most any trail of consequence ATrac would get me though just fine and without having to worry about binding in tight turn situations like you would with using a locker. It does sound pretty awful though but a good/proven bit of technology.

[@davep2945]

A-Trac is a form of brake activated limited slip. I know Toyota folks think it's something special simply because it's from Toyota but it's just a really good version of ABLS. The Toyota system has gotten markedly better over the years, especially in the newest 4Runners, Tacoma and 300 series Land Cruisers. Before it was like so many others where the system was too slow to react and not enough brake force was applied to the spinning wheel. For all their reliability issues Land Rover and Mercedes still lead the pack with their ABLS systems. They are the quickest to sense the spinning wheel, the quickest to stop it and stop it completely and the quickest to redirect power. However, even with such fast acting systems when those same vehicles are equipped with lockers and the lockers are engaged the response is even faster and the recovery more smooth.

[@zacklemmon3201]

Thanks for explaining this! I’ve been wanting to learn more about 4wd systems because I want a 4Runner :)

[@KTMcaptain]

3:20 this is the first time I’ve ever heard TFL acknowledge that open diffs are 50:50 split torque… in the past they always said lockers had equal torque. Kudos.

[@4x4.tests.on.rollers]

Indeed.

[@brem02]

I had a 2011 TRD Off Road and played around with all the settings going up an icy hill. Very impressive system and your video illustrated it well. 👍

[@rafaeldiaz8129]

What u do with it bud

[@brem02]

@@rafaeldiaz8129 It was a pig on fuel and I had a long commute at that time. Sold it to fellah to use as his “back woods vehicle.” Even though the KDSS system was shot, it was still a very capable machine.

[@BenLapke]

I had a 2019 4Runner Limited and used to take it off road in SoCal. It was completely stock, and I was amazed at how effective the A-Trac system was when driving off road. I didn’t try anything too hairy, but it handled the intermediate challenges pretty well. I was telling the service writer at the dealer how great the A-Trac system was, and he said I was the first Limited owner he ever met who used the A-Trac system. 😅

[@ChrisRand-gf7lz]

You need to try the roller test with a 4Runner Limited that has Full-Time AWD through a Torsen Center Differential and see the system works in normal every day mode, H$F.

[@michaelswick4251]

I pulled a Chevy Silverado out of a snow drift with a late 1990s Toyota RAV4. Toyotas are crazy. My son later had a few of those 90s RAVs and took them places that some off roaders feared to go.

[@perpelle]

Nothing beats lockers imo as they act before you loose traction and therefor maintaining momentum. However, my hilux with a-trc (and locking rear if I want to) does get me out of 98% of all situations, especially for me as I don't want trail damage on a new vehicle (not trying the hardest trails).

[@billsalcido7878]

whered you get it

[@normandduval8472]

Amen ! I love mine. Of course with rear lock, MTS and crawl control you just smile all the way.

[@RKmndo]

Traction-control systems seem to be getting way better. They still cut power, unlike lockers/LSDs, but they sure react much quicker and more effectively than the early TC systems did.

[@Hammbone2519]

A-TRAC does NOT cut power. Some Toyotas also have VSC (Vehicle Stability Control) which uses yaw sensors to determine if you’re getting sideways and cuts throttle. On the road it works in combo with A-TRAC but it’s typically not active when in offroad modes.

[@RKmndo]

@@Hammbone2519 A-TRAC doesn't apply brake to a slipping corner?

[@whewdoggie1]

@RKmndo atrac does apply brakes but does not cut power. Many vehicles with stability control will cut power but it can simply be turned off on some.

[@ouch1011]

Most vehicles with a dedicated off-road mode do the same exact thing, with varying degrees of aggression. Toyota has had locking rear differentials as an option on their trucks for a long time. That’s still the best option for vehicles that are actually used off-road. Given that the vast majority of “off-road” vehicles never, ever go off-road, the locking diff is a complete waste for most. Modern traction control is a very effective replacement for almost any on-road situation. For me personally, I still prefer a limited-slip differential, especially in a truck. It just makes things less dramatic, especially when pulling out into traffic on a rainy day.

[@ovxela]

This is a great informative video! Can you do another one on why you might want to be careful driving 4WD on pavement? (Potential to cause issues with the drivetrain to bind?)

[@donniedye2716]

I've got the same 4runner on order but in white. I was trying to figure out if I needed to add a limited slip rear differential. This answers my question. I've watched so many videos and spent hours thinking about it. Best video hands down. Thanks for the information. So well done. Thanks!

[@mahhty4279]

Land Rover and Toyota have the best traction systems easily

[@rangerover06sc]

Congrats for recognizing that torque is being split evenly on an open diff, even if only one wheel is spinning. So many "experts" just say all the torque goes to one side.

[@TylerOstergaard]

just got me a 2013 4runner with a-track and i'm excited to use it :)

[@allenpiper1935]

For anyone out there who enjoys winter recreation, especially up in the mountains, A-Trac and any other form of traction control via electric braking sucks. I usually deactivate it if I'm driving up a sustained grade on a snowy road because it's one major weakness is that it KILLS momentum. Tommy actually did a good representing exactly what I mean in the video. In both the roller examples and the mud whoops, he specifies how you see the greatest impact when slowly easing into the throttle and letting the traction control get torque to the wheel on the ground with traction. The issue with an inclined snowy road is that NO wheel has definitively more traction. None are in the air, so they all have about the same weight distribution and they're all on the same slippery surface. So in this specific case, traction control would sense one wheel spinning faster then brake so the other can spin and now the braking has slowed your momentum down substantially while the other wheel will begin to spin - and it also has no traction! Now you're alternating wheels and braking essentially until you come to a standstill on a steep mountain road. Traction control is cheap and quite brilliant for crawling around and maybe getting out of a wonky driveway in snow, but your best bet for the mountain passes on the way to the ski hill is always gonna be dedicated winter tires. And if you want to get real fancy with the drivetrain, a clutch or torsion limited slip differential would be about the only impactful tool. Even a locking diff gets tricky as it could oversteer you off the road if you're too aggressive with the throttle.

[@stefanpavlovic2535]

Great test of the 4x4 system. I would like to see a comparison test of the 3 4wd options on Jeep Grand Cherokee WK2 and also the systems used on the Wrangler JL. Would be a proper used cars buyer's guide.

[@Johnrap]

Just got a 2024 4Runner and heard the sound at 11:22 the first time the car went uphill over ice in 2WD and thought the car was broken. Glad to hear it was A-TRAC. It must engage automatically on 2024s.

[@byronlarson5534]

Very cool. Would love to see a comparison of A-Trac with Quadratrac II (Jeep Grand Cherokee). I believe the QTII is always on vs. a button to engage, though.

[@Rooster_king]

I wouldn't want a traction control system that you can't turn off. There are situations where you need to keep your momentum and computer braking would not be beneficial.

[@byronlarson5534]

@@Rooster_king I have a '21 Jeep Grand Cherokee Trailhawk. The system defaults to being on. I never really think about why I wouldn't want it to be on - but you bring up an interesting use case. The vehicle does have a traction control disable button that you can use.

[@hunterhoag7272]

@@byronlarson5534 Byron, your GC has Quadra-Drive II. 2005-10, QDII was ELSD Front and Rear, 2011-present, QDII is ELSD Rear only. Quadra-Trac I is a one speed transfer case (no Low Range), QTII is a two speed transfer case, Quadra-Drive II adds a locker or two. All systems use BLD. Happy Jeeping!

[@lukestoyz]

SAND

[@KeepYourSWORDInYourHand]

@@hunterhoag7272 Quadra Drive is just Quadra Trac II with a eLSD in the back. So I think he was just saying that the traction control system is always working, not that he does not understand his systems. I have a Hemi Overland with QTII

[@Liberty-Works1111]

On my 5th 4Runner... Love these vehicles... Might be my favorite all time vehicle of any kind...

[@ExpeditionaryRanger]

I still think this is the best all around vehicle on the road today. Are they going to screw it up with a turbo? Is it still going to be made in Japan? Is gas going to stay high? There are the things I want to know if I'm going to trade my Highlander on one...

[@rmoore07]

If you want a 4Runner, I'd get one of the current ones. They hold such strong resell value, you could later step up to a 6th gen if Toyota doesn't screw them up.

[@ExpeditionaryRanger]

This is a good point.

[@trailrunnah8886]

I hope they add a turbo to it. I have one, the worst thing about it is the engine and transmission.

[@jadoriffic]

I use A-Trac in my 4R all the time. I can't believe how well it works. I can go anywhere my buddy can go in his FJ Cruiser with the rear locker.

[@ChristianRunsNY]

This is just really informative even for me who is looking at getting into a 4Runner. Knowing this option for A Trac works well I may not need to go up to a trim with MTS since I'm not a heavy off roader by any means, yet

[@trailrunnah8886]

I went to an off-roading event last month with my 4Runner. I have the trim with a locker, but there was somebody there with an SR5 version that was doing harder trails than I was. The ATRAC really is effective, and if you get to a point where it's not, you can add a locker to it after the fact.

[@Offshore1977]

ATRAC is very effective. Only place a locker would be better is in rock crawling.

[@MrJcjet]

Great video guys and gals! I have a triple double locked 4runner. And I find atrac is fantastic for almost everything. Sure, there's extreme situations where lockers really have the advantage. But the great thing is atrac is standard on every 4runner and they all are very capable even completely stock. Imo the biggest thing Toyota needs to change is to make it more obvious and user friendly. First - make it a toggle switch so it stays on when you turn on and off the vehicle. Second- put the switch down on the 4wd actuator so novices know where to find it. Make it idiot proof.

[@trailrunnah8886]

@@MrJcjet what is "triple double locked'"?

[@MrJcjet]

@@trailrunnah8886 it's when you have 5 differentials and all of them lock. You know, like a 8x8. Haha. It was a typo. I meant triple locked, but really double locked. - front and rear diff locks and in my case a transfer case on a TRD OR model what doesn't actually have a center differential. But that's usually referred to as triple locked because the transfer case is locked. A true triple locked wood usually apply to something like a Land Cruiser with a center differential that can also be locked. Mine was a TRD OR with an aftermarket front locker.

[@olivierlagace]

Nice video! Glad to really see the system works. Makes me love my 4Runner even more !

[@cordellroberson532]

wonder if crawl control would have preformed as well. with jeep with automatics (Selec Speed Control), ford (Trail Control), and GM (with "terrain mode" on new interior 1500's) all having competing modes i would love to see a showdown.

[@PocketManga]

This. We need a video using the same test method and comparing all different awd and 4x4's traction control systems and see truly which one fails and which one triumphs.

[@mtbmusings]

Finally someone who talks about A-Trac. One of the coolest things ever

[@KayBertoss]

Great video explaining A-Trac Tommy. I really wish this was standard equipment or even was an option for my 2020 Tacoama TRD Sport DCLB 4x4. I'd choose this over an optional locker any day as it's way more practical for everyday driving. The standard, simulated, rear LSD on the Tacomas is nowhere near as capable as A-Trac unless you get the e-locker.

[@rambokd]

Don’t you have crawl control? That’s basically ATRAC at a new level of awesome!

[@KayBertoss]

@@rambokd No, TRD Sports do not come with crawl control, MTS or an e-locker.

[@rambokd]

Ah maybe it starts at the TRD off-road trim level. My Brother in-law has it and I thought it was a Taco thing across 4x4 trims.

[@KayBertoss]

@@rambokd Yes, only the TRD Off-Roads and Pro’s with Automatic Transmissions. Manual Transmissions get A-Trac.

[@benb50001]

I always wondered what the A-trac button was for. This video made it very clear! Thanks!

[@chiron03]

The 2003-2006 Mitsubishi Montero also has a very impressive traction control system. I'd love to see yall put it to the test on this system. Hell I'd even offer up my own Montero.

[@Agent.K.]

Yeah it has a clutch and liquid (something like that 😅) , and it’ll stop working once it gets hot. Toyota is all electronic. Both cool.

[@mikegabler5183]

Never had a vehicle with A trac, but I did have a few 4Runners with rear lockers and 4Runner just themselves are almost Tanks on their own. I am on my 2nd Tacoma TRD Off Road, currently being a 21 with the TRD package, but the 4Runners are just a little better off road than the Tacoma. I like my Tacoma for the convenience of having a pickup and the fact that it tows my camper nicely. the current TRD Off Road mud terrain setting works about the same as A trac.

[@samsammy6210]

Interesting. Why ? Basically both have the same frame. Take off the body and swap them out. So the Tacoma is now a 4 runner and vise versa. 4 runner has closed bed sort of and the Tacoma has an open bed. Drive train and all be equally equipped should be able to negotiate about the same. I might say the 4 runner maybe heavier. Not sure how much that would play out. Same wheel base. Just asking about your conclusion about 4 runner better off road. Being both are equipped the same.😊

[@coloradomallcrawlers]

Based on what I’ve seen, the KL Cherokee has the best traction system I’ve ever seen. On Red Cone, the FJ had atrac and the KL had whatever Jeep has. The KL had an easier time.

[@Juan234alv]

Good video. Love my 4Runner ORP. Any time I’ve gone to new places or new terrain I’m always confident in how it will get itself out. Some rock sliders and 33s made it easily the best vehicle I’ve ever owned. It might be a dinosaur but it’s never a questionable portion of my journeys. Solid content as always from you guys.

[@getlosttoday4045]

Tommy we need more roller test please?!

[@mrvoyagerm]

The best thing about my new Highlander Platinum is the Torque Vectoring. This system works just as well but does not use the brakes as in the ATrac system. It uses clutches on each differential to control traction and the best part is that it is seemless, noiseless and no buttons or levers involved. Again another innovation that Toyota never talks about and is nothing short of brilliant.

[@The_Angry_Medic]

As many gripes as I had about my '17 TRD Off-road, A-trac and crawl control were pretty amazing to have as a newbie, and only once did I screw up bad enough to need the rear locker engaged. I thought it was a well built truck, but I'm team bronco now, it seems to do everything the 4Runner does just better, including long range comfort since the Bronco has the gearing and power that the Toyota abysmally lacks.

[@trailrunnah8886]

Yeah, if I had the money I would love a Sasquatch Bronco. But I don't, so I will stick with my 9-year-old 4Runner haha. Somebody asked me what I'd like to see in the next 4Runner, and I said I want the Bronco, but built by Toyota.

[@jaysonc2102]

Having driven both…I’m keeping my supercharged and re-geared 4Runner.

[@jaysonc2102]

@@trailrunnah8886 Let’s hope Toyota brings out the new FJ. If they do it right, it will be a Bronco killer 🤞🏼🤞🏼🤞🏼

[@The_Angry_Medic]

@@jaysonc2102 shame you had to spend all that money to get what the bronco does from the factory

[@jaysonc2102]

@@The_Angry_Medic Yet I’m still well under the cost of the comparably equipped Bronco,and my vehicle was built in Japan.😎

[@erikcoll8563]

One of the best videos I’ve seen for explaining the Toyota A-TRAC. Thank you very much.

[@PhillyDee215]

The secret button😵