GMC Canyon AT4 SeaLight LED Install & Review

Installed some Sealight LED bulbs into my 2021 Canyon AT4, and figured I would share the process with everyone. The stock lights are horrible, especially at night, and the factory yellow color is hideous. Upgrading the bulbs to proper LED's not only makes the truck look more modern, but also helps visibility. I highly recommend these bulbs, especially if you can get them on a sale like I did ($60 including tax). One of the best bang for your buck mods on the market for the Canyon / Colorado GM twins. Comes with 4 bulbs, 2 for the high beam and 2 for the low beam, direct plug and play.
SEALIGHT 9005/HB3 High Beam H11/H9 Low Beam 14000LM LED Headlight Bulbs Combo Package CSP Chips 6000K Cool White
www.amazon.com/gp/product/B07...

[@matthewsmith1597]

Thank you for this very helpful video. I ordered the same lights and installed them yesterday. They are great and the look is so much better. Thank you!!

[@elliotchalew4022]

Thank you for scripting, photographing and producing this incredibly informative and helpful step-by-step video. Closely followed each well planned and explained movement. Guessin' it took me a bit longer than most. Was rewarded "to-the-max" when seeing the incredible lighting improvement. Awesome video! Thank you!

[@ConnorsCorner1]

Glad it helped!!!

[@em30049]

@@ConnorsCorner1are these compatible w the 2022 at4

[@safespaceinvader8065]

Thanks again for the video, these led lights do indeed work on a 2021 Gmc Canyon elevation, boom!

[@zachrandolph7845]

Amazingly helpful video . Looks great on mine . I didn’t have to unplug the horn I just sort of pushed it off to the side and it worked

[@ConnorsCorner1]

Glad it helped

[@davidstraight270]

Than you. Just changed mine out on my 2022 Canyon Denali. It was as easy as you made it look.

[@kevinblock2307]

Sad GM doesn’t include the LEDs for the AT4 headlights. Great detailed review on installing

[@ConnorsCorner1]

For real. It's 2021 for crying out loud, put some modern lights in it! Luckily it isn't super hard to swap with good bulbs. Thanks for the kind words.

[@user-xc2vm4tum]

@@ConnorsCorner1how do your replace the fog bulbs?

[@mattpinon7610]

Just got a 2021 Canyon and these are the exact lights I was looking at buying. They seem like a no brainer for the price!

[@ConnorsCorner1]

Exactly!! I love them.

[@meh65]

Thanks for the video! I just picked up my Canyon AT4. I went to order these and there is a 50% off coupon running right now as of 7/2/2021

[@ConnorsCorner1]

Glad I could help!

[@mpenrose]

I bought the X1 Sealight bulbs for my 2022 GMC Canyon AT4 like you installed on your truck. I was not satisfied with the SeaLiight X1 low beams so I bought the X2 fan cooled version and they are absolutely spectacular. Way brighter and much more down range powerful. The X2 versions have much more projection power and I'd say they are 50% more brighter. They are fan cooled of course but that's okay with me, I'm very satisficed with the X2's and just as easy to install.

[@n9las]

Did they fit without modifying the dust covers?

[@paulmoya3557]

@@n9las I have seen others install the fan bulbs and had no problems reinstalling the dust covers

[@1micYT]

Thanks!! This process worked on my 2021 Canyon. Only concern I have is the ballast not staying stuck to the inside of the housing and dangling free at some point.

[@ConnorsCorner1]

Mine did the same. Unsure if the double sided tape they provide is junk or what

[@SilverTongueJona10]

I was hoping you might remember a few things about this install. I just bought these and had a few questions about about some things… Did the High Beams LED’s have a bit of play when you rotated them in? Mine have a slight wobble compared to the factory lights that were very snug. Interestingly the low beam LED’s were very snug as expected. And have you had any issues with heat and melting? I read reviews for some people that said they got so hot their wires were melting or housing has melted a bit. Some people also mentioned flickering.

[@Zac_B_AZ]

Thanks for the video! Just got the AT4 and will be making this change. Any other (relatively) easy mods you've done or looking at doing?

[@ConnorsCorner1]

Yep! The extra bed hooks, cheap and easy. Trim / remove the air dam, on the 21's it's way easier than previous years. I plan on doing some LED lights in the bed as well, the truck already have a plug behind the taillight that's is powered when the upper bed light is on. Just some small piddly stuff.

[@RamandChevyOwner]

So my dad’s looking for led bulbs better than the halogens on his 21 at 4 canyon.Are these really good and better and are they really bright

[@frandanco6289]

Thank you for a great, well thought out, perfect lighting, camera work and video.. You did a great job! Can you please tell us if the Low Beams Light Output down the road in the dark is the same as the Halogens you took out ?? I drive a lot at night and need the Low Beams to reach out as far as possible, before I have to use the high beams.. Sometimes, high beams are so bright, they light up Every Reflective highway sign on the side of the road, so this is why I want the Low Beams to be really out there as much as possible.. Thank you again !

[@ConnorsCorner1]

Low beams are slightly better, noticeable but not mind blowing. The high beams are insane though. Thanks for the kind words.

[@frandanco6289]

@@ConnorsCorner1 Thank you for your reply !!! You said your bulbs do not have the fan on them, are you worried about them overheating and not lasting as long? Are they still working great? They sure looked great !! Thanks for all your hard work and help !

[@Mykantana]

I like the way you trimmed that air damn down. Looks a lot better. Did you make a video/link or instructions on how you did that? I’d like to trim mine.

[@ConnorsCorner1]

Nah I didnt. I just used some tape to figure out a shape I liked, and then used some tin shears to trim it. Easy enough.

[@truenader]

Will these work with a 2019 canyon?

[@tonyflorio8883]

They look great! I just installed morimoto 2stroke 3.0s in my 2018 Canyon low beam and they don't work. Well they do in park but as soon as I put it into drive they go out. Trying to reach the co I got them from now. Any suggestions?

[@ConnorsCorner1]

Not really sure. People on the forums seem to have difficulty with them, but they got rhe bulbs without the CANBUS portion. Some also mentioned they needed some anti-flicker option? Those are nice bulbs, so I would expect them to work perfectly.

[@frandanco6289]

@@ConnorsCorner1 Everyone needs to understand that the power an LED uses is way, way, less than any other bulb, so the way it gets its power is also different, another reason for the resistor (canbus), in the LED bulb wiring... You have to match what an LED bulb needs or it will possibly flicker and drive everyone nuts or not work at all..

[@joemoore1039]

Would these work for a 2016 canyon? The standard yellow is just completely awful and been looking for some good LEDs.

[@ConnorsCorner1]

Yep! Same bulb types. Should be good to go

[@antcar97]

Please post the model number for your lights , when I look on Amazon it says “ not for your vehicle “ 2021 AT4 thank you great video ,

[@ConnorsCorner1]

The ones I linked in the description are the ones I bought, they fit perfect. The headlights on the 21s are the same as all the other 2nd gen years, so they'll fit. They just haven't VERIFIED that they fit the 21s, so they say they don't fit. Same goes for all lights you find, if they list fitment 2015-2020 but not 2021, then they will fit.

[@mitchbearson6276]

Any issues after a year?

[@danegasper6859]

so i installed some aftermarket h11 LED bulbs for my low beams in my 2021 canyon, now in gear instead of the DRL coming on, only my low beams come on. so i guess they are not compatible with cars with DRL or they just suck all the power or something. do these do the same thing. or does the DRL bars still function properly?

[@ConnorsCorner1]

My DRL strips still come on. Certain brands work with it, and certain others don't.

[@billd4056]

Did you add the decoders to the lows ? Their needed with the DRL's

[@josephrossi6687]

What was the model of the Sealights you installed? I am looking for LED lights for my 2021 AT4

[@ConnorsCorner1]

The link is in the description! Thanks

[@Rexinator12345]

Just wondering if this will fit the 2022 gmc canyon elevation?

[@ConnorsCorner1]

It SHOULD fit, being that the refresh isn’t until the 2023 model.

[@dw4lubu]

does your DRL flicker? if not and works properly, is it running at 30% brightness or 100%?

[@ConnorsCorner1]

Nope! It functions perfectly, same as OEM

[@safespaceinvader8065]

I just noticed my daytime lights don't come on my 2021 GMC canyon, the LED strip lights, did these come on in the first place?

[@ConnorsCorner1]

Someone below commented the same thing. The truck has to be outside of Park for them to come on. So in Drive or Reverse, or maybe even neutral, the DRL should come on.

[@safespaceinvader8065]

@@ConnorsCorner1 , K, I was assuming they would be the daylight lights by default, my LED's headlights come on during the day, thought it would be the strip LED's, see other vehicles where the strip is on during the day

[@Mykantana]

Hey is that the stock air damn on your AT4? It looks shorter for some reason. I like it!

[@ConnorsCorner1]

Yep. Stock but I trimmed it down!

[@safespaceinvader8065]

So you are 100% these work, Amazon says they don't fit?! Great video!

[@ConnorsCorner1]

110%. The headlights haven't changed for 2021, they're the same as previous years. They fit.

[@safespaceinvader8065]

@@ConnorsCorner1 sweet, going to order them for my 2021 canyon, another question, what is with the fan versions? They get hot?

[@ConnorsCorner1]

@@safespaceinvader8065 I got the ones without the fan. Typically that style have clearance problems with the caps on the lights, which is why I opted for the heatsink only

[@MrGriffsAdventures]

How did you pop the plastic push clips out?

[@ConnorsCorner1]

On the edge of the clip, there should be 2 divot's (little cut outs). Use a small flat head in 1 of those to pry the center section out, and then you can pull the whole clip out.

[@MrLiesAngeles]

@@ConnorsCorner1 Thats the hardest part of the entire process in my opinion. Just did this tonight and the plastic tube took me the longest to do. I left the horn on also. 2 plastic tabs and the T15/20 removal and the plastic liner bends forward to get your hands in there.

[@shanebell618]

Did your DRL still work in auto mode after installing this? Mine do not seem to come on.

[@ConnorsCorner1]

Yep, mine function same as stock. No issues.

[@shanebell618]

@@ConnorsCorner1 Hmm. Guess I'll drive it a little while and see if anything changes. My quick garage test did not work. I had the amber running lights but no low output headlights coming on.

[@ConnorsCorner1]

@@shanebell618 Yeah weird. My low beams are on, as are the DRL strips at the top and bottom of the headlights, as well as the amber corner lights.

[@shanebell618]

Just an update in case anyone sees this later. I'm an idiot and didn't realize that being in park or having the e brake on will disable the headlight portion of the drls. The amber will stay on but the DRL headlights actually come on once you shift out of park. At least this is the case on my 2017.

[@codhackzWII]

Are they brighter than the stock yellow?

[@ConnorsCorner1]

Yep, just not a ton, I would say 10% MAYBE 15% brighter than stock. They're worth it just to get rid of the yellow IMO. If you want great light output, you're going to have to pay for it. The GTR bulbs are insanely good, but are also $100 each. I wasn't ready to spend that.

[@codhackzWII]

Thank you I actually just bought and installed them yesterday!!! They look awesome

[@TheyLive-2024]

Why dose it say that it dose not fit the canyon? On Amazon?

[@ConnorsCorner1]

Not sure, but it does. There were no lighting changes for the 21 model year, they fit!

[@tred06]

Will this fit 2021 canyon Denali?

[@ConnorsCorner1]

Sure will!!

[@tred06]

Sickkk. Good vid bud

[@collinfrarer7921]

what size tires do u have?

[@ConnorsCorner1]

Stock 31s

[@patricks.2779]

Any FM signal probleme ?

[@ConnorsCorner1]

Nope! Didn't have any issues with them.

[@Watson407]

Have you had any issues with these so far

[@ConnorsCorner1]

Nope!!

[@jamesmcgivern5338]

Just came on to ask the same thing. Just bought an AT4. Glad to see the lights holding up!

[@Daniel-zn3nm]

Hi Connor, do you have Instagram page?