Buick LaCrosse eAssist Hybrid System

[@spelunkerd]

That's a great demo. It's interesting to see the marked similarities between this vehicle and the Lexus.

[@adamslayer3992]

You did a great job explaining the individual components in this system thank you.

[@ladykoh4678]

The cool feature of this system is that if you have newer drained or an older, weak, 12v battery that will fails to start the car... you are able to use the hybrid built in system to charge the 12v battery from the hybrid battery and then start the car without a boost from an external 2nd car! I had this happen in a 2013 LaCrosse with a 5 year old original 12v battery. I followed the instructions in the manual an it saved me when I was out one night. Next day it started, but weakly, so I had the dealer check the system and they load tested the 12v battery that failed the test and needed a new 12v battery.

[@WeberAuto]

Thanks for your feedback. Good to know

[@charlesrichards5389]

For those who have lost their manual: -Press MENU on the turn signal lever until Vehicle Information Menu is displayed. -Turn thumb-wheel to scroll through the menu items until Jump Start is displayed. -Press SET/CLR (button at tip of lever) to activate the jump start. -Select YES, the jump start will begin, and the display will show JUMP START ACTIVE, WAIT TO START. -When the jump start is complete, the display will show JUMP START COMPLETE. ATTEMPT START. Say a short prayer and turn the key. The on-board jump start function will then be automatically disabled. Repeat steps if necessary.

[@erikjohnson2889]

Thanks so much for this. I have a 2013 Regal with eAssist and I have a much better grasp of the systems after watching this.

[@sheldonnewton9435]

Any common problems with your regal?

[@judilyn48]

thankyou for this video. my mother has this year/make/modle.. today she tried to start it and it just clicks.. we live in the desert and the temps have been consistently over 115 degrees for the past week. the battery under the hood has a charge of 12.53 there are lights on. there is a message that says "service battery charging system". what should we be looking at?thank you

[@2LateIWon]

just bought a 2013 very interesting how this works great explanation great vid

[@WeberAuto]

+2LateIWon Thank you!

[@estebanamador7601]

After all these years, how was the system? It was reliable? How about fuel economy? Thanks

[@2LateIWon]

@@estebanamador7601 still driving it today. I had the transmission replaced last year under warranty. The chrome plastic pieces are starting to peel. But I'm at about almost 90k miles. It's a great car. Getting ready to sell mine as I need more cargo room (thinking about a GMC Yukon)

[@estebanamador7601]

@@2LateIWon thank you for the info, good to read that the e-assist system is ok. By the way, I have a 1998 GMT400 Yukon, really good cars, good luck with the one that you will buy. Greetings

[@VOOODOOO377]

I have the 2019 model, love the e-assist system. I thought I would hate the start stop feature but actually love it now. Saves gas. I'm getting 32 on hwy. The 4cyl has more than enough power, seems like a V6 overall.

[@Lof3tak3r]

Great video helped me understand under the hood a lot more, so I have an interesting question about the eassist battery in the trunk of a 2012 Buick lacrosse premium so if you just disabled the battery in the back would it hurt the car more then having it on? I’ve read if the car isn’t driving so far all the auto stop feature does is deter your battery and isn’t as beneficial. Thoughts?

[@WeberAuto]

@Telcom100 You are correct, my mistake. Thank you for the heads up.

[@WeberAuto]

Hi, I would not put much stock in that article. I have found that the EPA mpg ratings are pretty accurate. Of course every driver will have a different driving style; factors like outside temperature, acceleration rates, braking, and cruise control have huge impacts on fuel economy. The charging is all handled by the on-board computers, there is no provision for plug-in charging. The battery is a Li-Ion battery, it is charged differently than the NiMH batteries of the past.

[@mrfreshsports8967]

Could it be just a fuse for the E assist fuse panel which is number 15 under the fuse panel?

[@mugshotmarley]

Thank you for breaking the system down. No other video explains it as well and detailed. When I bought my new Silverado with e-assist, I thought it was the coolest thing. As a hobby mechanic that I do all my own repairs on our cars, this eassist kinda of scared me. But you've explained it great. I thought it was way more complex, but realizing that the electric motor is basically powering/recovering energy via the crankshaft through a belt simplifies it greatly. I still cant grasp how it adds 15 hp to the crank via a serpentine belt. Is it more of the electric motor nullifying the parasitic loss on a gasoline engine?

[@Telcom100]

Excellent video! Answers many of the questions I had. At 4:38, the inverter would go from DC to AC and the converter (rectifier) would go from AC to DC.

[@ahmadalhamodi9690]

Hello i have 2014 buick lacrosse i was accident in front and the car now is not start i chenge the battry is start but in dish i have battry light is on please can u tell me what's the means

[@bradeagle9724]

@@ahmadalhamodi9690 Did you determine what this issue was? I have a 2018 eassist Silverado that was involved in a front collision that has the service charging system light and is not supplying adequate charging voltage to the 12V battery. I have read it may have to go to the dealer for service but nothing says why or what they have to do.

[@WeberAuto]

@TheDerfixer Hi, a colleague forwarded me an article on this topic. If the engine drives the rotor faster than the synchronous frequency of the stator, the rotor will still have induced magnetism, but as it collapses it will induce reverse current in the next stator poles as it cuts across them causing current to go back to the converter and battery. The stator never quits trying to drive the rotor at the calculated synchronous speed, but sometimes the engine drives the rotor faster than that.

[@camarozone2751]

2013 lacrosse 2.4 alternator replaced but died when trying to park n nothing comes on now what could be the problem ? N there is a code for cam sensor

[@Msleelee9487]

My engine light came on never had trouble with it anyway I’m out of town car acted like it wanted to stall but because of autostop can’t tell what’s happening went to autozone to get a scan and the guy said I had 3 codes but it didn’t say what it was and I need to take it to a dealership I have 100 miles to drive home and it’s the weekend so nobody is open do you have to have a special scanner to find out what is going on I work on cars but not this one the engine light is still not blinking what do you think?

[@lilcozy6]

Get you a obd reader . I have one for mine. Mine did the same thing yours did. But my reader could pick it up

[@Autokey_Security_Services]

Nice video on this system.... I still have not come across one of these.... Also I've never seen the BAS system ....pretty interesting cool...

[@aricp3764]

So if there's a problem with the e v battery, will the car still run and drive

[@carlosmarente8143]

I’m having problems with the auto stop it won’t restart any idea what it could be I knows it over 10 years since this vid came out

[@bonnieheming98]

I have a 2014 LaCrosse -any suggestions on why the alternator is not putting out sufficient voltage

[@WeberAuto]

No, Have it checked for trouble codes. It charges the high voltage battery, not the 12V battery. Thanks for watching

[@retrobasement9957]

Question on the display it shows it trying to charge the lithium battery but it's not charging and check engine light is on. Thoughts? I know they have a recall for the generator module but my vin doesn't show that recall but it is for the year of my car

[@WeberAuto]

You must start with finding out what trouble code has set causing the check engine light to illuminate. It may be related to the issue you describe.

[@robertthomas1974]

Great video I have the same motor in my 13 Malibu eco and am having an issue with a code poa90 that comes on. i disconnected the battery and the light went of for around 5000 mile then came back on. I try to do all work myself and would like to know if you could tell me anything that might lead me in the right direction to fix. I’m thinking lose wire. Thank you

[@mrfreshsports8967]

If it's pulling my battery down is it probably the E assist electric Generator and how much do they cost?

[@tizocchuck5944]

Can we test AC voltage from generator three-phase wires with a 77iv fluke tester and 14dc V from inverter ? My 14’ lacrosse not charging. Thx in advance

[@muhammadaltahhan1244]

Thank you very much, really appreciate the explanation!

[@WeberAuto]

You're very welcome!

[@jamesanderson4014]

Wherever those Hybrid metal conduit cable run hope they have PVC type material inside metal conduit for wiring harness.

[@davisonpartlocator]

good video so how does the generator charge the vehicle under hood battery

[@WeberAuto]

Thank you! The generator charges the high voltage (HV) battery. The HV battery feeds power to the DC-to-DC converter. The DC-to-DC converter charges the 12V battery under the hood.

[@billhamon2068]

My 2013 Chevy Malibu eco battery isn't charging. I have already checked and replaced the battery under the hood. Again tested battery and then alternator which was low. But not bad. Also the auto start stop isn't working. I have noticed that when I excessively use the radio and other features that requires a lot of power the battery under the hood drains. Example for one us the aux input and the Bluetooth feature. Could it be an alternator?

[@chrism1448]

I have the same buick and po700 code popped up and having some problems exhilarating in fist gear hang advice?

[@LastKing-s4t]

My 2012 has a reduced power on the engine when I drive..anyone knows what my problems may be??

[@stevenb320]

What would you say replacement cost for that alternator would be with labor. Thank you.

[@arengif]

This demo caught my attention because I'm interested in getting a Mazda CX 70 or CX 90, which have a hybrid-assist system that runs with a 48 Volt battery. Can you please do a demo video on this system?

[@TommyHarrington4]

does the BAS motor have the same 4 pin connector as a normal alternator?

[@WeberAuto]

No

[@TommyHarrington4]

WeberAuto how different do you suspect the engine wiring harness is comparabed to an LEA

[@WeberAuto]

I don't know without doing a comprehensive comparison, but it is almost always more different that you would think. Different ECM/programming as well.

[@morefeouse]

Thanks for the vid. This is a wealth of info, and im loving every minute of it.thanks again.

[@Dustin55b]

Hey @weberauto , I have a 14 lacrosse. it is a rough transition when going from auto stop to start driving again. sometimes it will sit there and the belt will squeal, and after a few seconds the engine will start by the normal starter. any idea where my problem may be?

[@WeberAuto]

Wow! It sounds like the drive belt tensioner, idler pulley, or the drive belt has problems. Obviously the belt should be gripping rather than slipping and squealing. Best wishes!

[@mychalharmon1]

Yeah, My 2012 Regal has the same issue, and now I checked the energy flow on the display and it doesn't seem like the battery is charging and the hybrid isn't kicking in anymore. Plus when I'm driving at a high speed and hit the brakes to slow down the headlights dim.

[@gervon8911]

I Have A 2014 Buick Lacrosse 2.4L. It Starts But It Is Draining The Battery. I Keep An Extra Battery Just In case One Battery Dies. I'm Thinking The Alternator, I Would Like To Know Your Expertise, Before Spending An Unnecessary Amount Please!! Thank You.

[@WeberAuto]

There could be many reasons for the battery draining. It is unlikely that the alternator is the cause. You need to find someone to perform a "parasitic draw test" on you vehicle to determine where the drain is coming from. Make sure there are no lights staying on in the trunk, glovebox, sun visors, etc. Best wishes

[@gervon8911]

Alright. So If The Warnings Light Come On About Battery Saving/Charging System. Is That An Alternator?

[@tracynelson184]

Most likely it’s the generator control module

[@loganator78r]

How would you change serpentine belt on this with a tensioner like that.

[@dosgos]

There is a special tool for the tensioner.

[@mikepablo5950]

I have a 2012 Buick lacrosse hybrid and it's not keeping the charge so how do u know WHEN the eco battery is dead?

[@WeberAuto]

When you say "it's not keeping the charge" are you talking about the 12 volt battery and not the 130 Volt Li-Ion battery? If it is the 12 Volt battery and it is the original battery, it probably needs a new one. They only last 5-6 years. If it is not the original battery, you may have a parasitic drain, or you may have a DC-DC converter problem. Have it checked for trouble codes. If it is the130 Volt Li-Ion battery, you need to have the system checked for trouble codes. That battery should last about 10 years or 150,000 miles (241,401 km). Best wishes.

[@santanalightfoot9906]

I wanna know also

[@santanalightfoot9906]

I have a 2012 lacrosse and it got hit on the passenger front and from then the battery light has been on . it starts but does not hold charge and I bought a new battery. But it last for a while then dies

[@JTB128650]

How to know if the generator is bad?

[@benbandz165]

Used alternator it says charged but still shuts off in about 10 to 15 minutes can u diagnose my issue

[@benbandz165]

2010 hybrid

[@xmykingx9846]

Great description video!!!!

[@IraqiAsseel]

Very nice explanation and very good information. Thank you.

[@BlkJesusHerbChemist]

WeberAuto great video!! my car will not start i got a boost and it says battery charging system needs service and power steering system needs service.... do you know what the problem is?

[@DannyCastle-u1b]

Thanks for the review it's very interesting

[@samx5896]

Hi, I have the 2014 Buick Lacrosse 50,000 km 2.4Lit Hybrid My battery is never charged full when I driving the car it is always half full. Is there a way to charge it full?

[@charlesrichards5389]

This is unique to "e-assist" systems that provide such a small amount of boost. Lithium Ion isn't like lead-acid. Cycling around the 50% mark is a Lithium Ion battery's happy place. Keep them between 30% to 75% with low charge/discharge loads and they'll last forever.

[@LMike2004]

Was that type of alt/gen 3 phase motor used for regenerative braking?

[@WeberAuto]

Hi, it is an induction motor.

[@TheAFCBoy]

where can I purchase the 130V lithium ion battery?

[@anuska224]

HI weberauto , thanks for this video , I hve a question , My 2012 lacrosse has a problem,Red battery light On and Charging system failure , Do you have an Idea of what the problem can be? thank you

[@WeberAuto]

Thank you! Probably a DC-DC converter issue

[@WeberAuto]

Or a bad 12V battery

[@danielcastillo4280]

My car jerks when I let off the gas I have a Buick Lacrosse 2012. Any solutions or any idea what could be wrong?

[@WeberAuto]

No, check fluid levels and trouble codes first

[@DuuudeMaaan]

Mine does this too exact same thing. If I’m driving at normal speed then brake and let go it will jerk back and forth pretty bad. I took it to the dealer they said nothing is wrong.

[@itsmestar2704]

How do I find the paint code for the car?

[@bretnelson4417]

I have a 2013 Malibu with the e assist. After an hour of driving or so the voltage to my 12 volt battery will start to drop. I have replaced the 12 volt battery and the DC to DC converter. The problem did not go away, any other suggestions?

[@user-wd5qg3fs2u]

Did you figure out the issue?

[@bretnelson4417]

Check the blower that cools the main battery. I changed it out a last week and so far so good.

[@JTB128650]

Have the same problem.

[@bretnelson4417]

@@JTB128650 I changed the main battery fan in the trunk out and the issue went away. It's was the problem I was having.

[@C-Redz]

How long do these e-assit batteries last?

[@WeberAuto]

Good question. they are warranted for 10 years. Thanks for watching

[@itzeletzy]

I have a 2013 Malibu and my car won’t charge the battery’s I have changed the alternator and noting please help

[@WeberAuto]

Check fuses and connections. Check for trouble codes too. Best wishes

[@DuuudeMaaan]

I have a 2015 Lacrosse and mine does this exact same thing.

[@gfemg]

Great Presentation - Very Informative of e-Assist - a remarkable technology designed to capture & recover energy that is normally lost in the form of heat during braking and use that energy to assist in powering the vehicle. The result? Much improved fuel economy & increased service life of the brakes. Every vehicle should have e-Assist - it offers the improved mpg of a full hybrid at far lower cost.

[@patrickharvey6979]

would this make a good everyday work car...i notice they are priced lower now..found one with 90000 miles on it and the warranty for the electric compenents is over...it scare me..is this hybrid system consist of expensive parts and presistant problems?

[@WeberAuto]

No, it is a good system

[@charlieg.6242]

Great Demo. Thank you. Hi Weber Auto, thank you for your videos, very helpful, helps me to understand the eassist in my car. I have a quick question for you, if you don't mind. When slowing down from higher speeds, when i get to about 30 mph, i sometimes get a jolt. Is that a problem with the transmission or something in the eAssist motor, like the speed and position sensor that you pointed out? Thanks again for your videos.

[@WeberAuto]

Hi, I suspect is it more transmission related. Best wishes

[@charlieg.6242]

Thank you for your quick reply. Do you think that it's something that my extended warranty bumper to bumper would cover if it's not showing any codes?

[@WeberAuto]

it probably would, but it would need to be diagnosed properly before they cover anything.

[@charlieg.6242]

Thank you for your help, i appreciate it.

[@michaelhodge9902]

Show me the engine starting in the Buick hybrid Lacrosse

[@WeberAuto]

+Michael Hodge We no longer have the car, but it is an instant start. Thanks for watching!

[@DannyCastle-u1b]

Thano for sharing its very interesting

[@davisonpartlocator]

hey again so if the 12v battery isn't charging the inverter or hybrid assembly is bad

[@WeberAuto]

No, A problem with the DC-DC converter is most likely the problem (assuming the Hv battery is receiving a charge)

[@ryan1the8grate]

I want to get an entire e-assist system and make a hell of a electric go-kart out of it!

[@michaelhodge9902]

The buick lacrosse hybrid uses the atkinson cycle engine.

[@WeberAuto]

Thanks for your feedback! I was not aware of that.

[@user-wd5qg3fs2u]

This is great and very detailed but I still can’t figure out why my dash lights/gauges won’t come on and the car won’t stay on after the cables are disconnected from jumping it. Anyone have any ideas or suggestions on what the cause is? P.s it’s a 2012 Buick LaCrosse with e-assist.

[@user-wd5qg3fs2u]

No check engine light is on btw.

[@middletennesseepicker6245]

My autostop does not work it cuts off then back on then will cut off and never start again

[@kris8263]

Glad I didn't end up buying the 2010 Lacross Hybrid and went with 1.8T Passat instead. The ride comfort is great on the LaCross though.

[@stevenpetaki2738]

@@kris8263 from what I’ve briefly researched about the eAssist LaCrosse, they started to have this mild hybrid system in 2012 & later models as an option & they never had it the prior years (unless of course someone installed it as an aftermarket).

[@jaygee2006]

Is the jerk normal

[@WeberAuto]

You can only get so much diesel fuel from a barrel of crude oil which is why it costs about a dollar a gallon more than gasoline and will continue to increase in price (supply and demand). Diesels are expensive to purchase, maintain, and refuel. Additionally, diesel is NOT an alternative fuel, electricity is. It takes a lot of electricity to locate, ship, refine, distribute, and pump diesel and gasoline. lets bypass the fuel and use the electricity. Hybrids and EVs are the wave of the future.

[@geojor]

thank you...

[@overbuiltautomotive1299]

i get 23 mpg out of a 3400 lb supra more on open roads the trick i have not done yet to is to tuning a lean spot it why i love megasquirt ecu n ceramic coating cheap bake on safe guard from detonation

[@bunnygamer1313]

My biuck lacrosse 2012 has an electrical failure, quickly discharge the battery and it does not advance, which could be

[@WeberAuto]

Check fuses and electrical connections. Have someone check for trouble codes.

[@Anthony11qq]

Only the most optimistic and idealistic people would have dared buy this back in 2012 😂

[@MrSEANCARPENTER1]

GM Junk,I have a 2013 Malibu Eco, needed new engine after 120,000 miles , my mistake was buying a used car, you never know how the other owner kept up with maintenance. I'll NEVER buy anything GM again! Word of advice, don't follow oil life monitor, change every 3,000 miles.

[@WeberAuto]

Thanks for your feedback!

[@benbandz165]

E assist i mean

[@CarOnTheWall]

you would have to really flog that car to get an average fuel economy of 18mpg. That sounds like a track day figure, which would not be accurate to claim as a 'real world driving test'

[@williamscott4634]

I just don't want to screw my car up because I missed something 🤬