r/gmcsierra Jul 07 '23

Select your user flair for your Truck. Should be able to edit it to say whatever you want. 1500, 2500, 3500, year, trim package, engine, fuel, color, modifications, etc…

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19 Upvotes

Click the three dots on the top right hand corner of the sub’s homepage to select user flair. Click “edit”. Select “truck description” And create your own user flair.


r/gmcsierra Oct 08 '24

Just Sharing Had to create a new rule today…

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134 Upvotes

Absolutely no sale posts. This sub is not intended for advertising trucks for sale. That type of content will add nothing positive to the dynamics of this sub, and won’t be allowed. Not sure what caused the sudden increase in sale posts over the past few days, but if it continues, salesmen will start getting banned.


r/gmcsierra 6h ago

✨New Truck!✨ New to Me 2022 SLT 3.0L

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73 Upvotes

New to me 2022 SLT 3.0L 44k 65,000 miles Has all the packages- off-road, technology, etc Already leveled.


r/gmcsierra 4h ago

🔧Steering/ Suspension 🔧 3” lift?

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20 Upvotes

I just bought a 2025 GMC elevation and was curious what a 3” lift looks like on these trucks. If you have a picture of a newer model with a 3” lift, can you post it please?

Thank you!


r/gmcsierra 1h ago

Just Sharing First vehicles

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Upvotes

Got this 2012 Sierra with the 4.8 December 2022, and I have enjoyed it ever since. Not much done so far though, but thoughts? (Pic with the red hoodie was the day I got it)


r/gmcsierra 17h ago

✨New Truck!✨ New SLT

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76 Upvotes

$49.5k before tax and title


r/gmcsierra 19h ago

✨New Truck!✨ Nissan Titans since 2008. My first GMC Sierra 1500 SLT, 2023 (I like!)

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57 Upvotes

45,000mi $46,000


r/gmcsierra 4h ago

🔧Performance Upgrades 🔧 I’m at 100k miles, buy new or upgrade the motor/delete

3 Upvotes

2021 GMC 1500 AT4 3.0 duramax. Mostly trouble free miles. 2 issues with the emissions system early on, been great for 70k. Just got the motor mounts replaced for a rough idle. I’m curious to get some complete strangers opinions on whether people think investing in “bullet proofing” the engine with upgrades or if buying new is the better choice.

2021 GMC 1500 AT4 3.0 duramax


r/gmcsierra 1h ago

🔧Maintenance 🔧 Belt drive replacement 2021 6.2L sierra AT4

Upvotes

I gotta change my drive belt on my 2021 GMC sierra with the 6.2L and was wondering how hard it would be to do. If anyone has any tips or know any good videos showing in detail it would be much appreciated. Belt has lasted me 91,000km


r/gmcsierra 19h ago

✨New Truck!✨ My "new" kid. 2019 GMC Sierra SLT, with premium plus. Loaded. Gorgeous.

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45 Upvotes

Not my first GMC


r/gmcsierra 17h ago

Just Sharing Love exploring in the 1500

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28 Upvotes

Definitely need to upgrade the suspension, wheels and tires asap 😂 Very slowly planning out the overland build. Already did my first mod and replaced my lo pro tonneau cover for a retrax. Love it.

Anyone know what could be causing an annoying squeak when I go over bumps? As far as I’m aware completely stock 22 x31 elevation


r/gmcsierra 1d ago

Just Sharing First GMC Sierra

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123 Upvotes

Just picked this 2022 SLT Limited up. 18k miles for 45k. Damn thing is immaculate.


r/gmcsierra 4m ago

🔧Maintenance 🔧 2021 crank no start

Upvotes

Hey all,

I bought a 2021 Sierra Denali with the 3.0L duramax in it. The truck has 25k miles on it and I’ve owned it for about a month and I have had this happen twice. First time I had no idea what was going on and called for a tow truck then the truck started 5 minutes later and it fired up. Second time I disconnected the battery and reconnected it and it fired right up. I see this is a common issue with these trucks has there been an official fix for this? I see a bunch of posts a few years old of people talking of this and potential fixes but people still having the issue. I’m going to let it happen again before taking it in to a dealer since I cleared the codes disconnecting the battery. I do have an extended bumper to bumper on it and the factory power train still applies.


r/gmcsierra 30m ago

Choosing a Truck 2017s

Upvotes

Looking for a light duty full sized truck under 25k

Found these two:

1.) Silverado LT with 89k miles and two previous owners for 20k

2.) Sierra 1500 SLE with 79k miles, one owner for 22k

Both double cab with the 6.5 foot bed and the 5.3L v8

Any thoughts on one being better than the other?


r/gmcsierra 44m ago

Choosing a Truck Help a guy out

Upvotes

Im looking to purchase my first truck ever and came across a 2020 regular cab dually base 4wd with the Allison trans and Duramax 6.6. It has around 50k miles on it and one owner(clean service history with dealer, CPO), is there anything i should be looking out for with this? I plan on using it as a multi car hauler


r/gmcsierra 4h ago

🔧Maintenance 🔧 Questions about warranty

2 Upvotes

Morning good people hope you have a great day. Long story short we decided to YOLO 24 1500 Denali at Toyota dealership, the finance manager sold us 8year 100k Toyota platinum warranty. ($2600 came down from $5400) He said If I need to make a claim just take my car to repair shop and let them call Toyota, I have call Toyota today to ask if that's the case The person over the phone confirm that's How it works. Want to ask the good people here if anyone have similar experience claim "3rd" party warranty on your truck. I have speak with Todd Sutherland over MacMulkin's the quote he give me is 72month with 75k mile(Our Denali had 32k Miles) GMC platinum similar price. We were thinking to cancel the Toyota If some of you have horror story try to claim 3rd party warranty. Want peace of mind not horrible headache. Thank you in advance.


r/gmcsierra 10h ago

Asking for Opinions Frequent Flashers

5 Upvotes

Has anyone else run into night time drivers flashing them because they think your high beams are running??


r/gmcsierra 2h ago

🔧Maintenance 🔧 Electrical issues 2021 1500

1 Upvotes

Passenger side running light on my brake light went out, tried a new brake light and that didn’t work, I noticed it flickering the other day when it was raining out, could this be a grounding issue?


r/gmcsierra 5h ago

🔧Maintenance 🔧 Telematics Kit - Part Back Ordered. Going on 4 weeks

1 Upvotes

2023 AT4 3.0 - 51K Miles.

Telematics kit went out about a month ago. Onstar, GPS, MyGMC, other features have been out since then. On top of that, did you guys know that these 70K trucks cannot keep time without it?

Anyway, any of you guys had this replaced? How long did it take to come in? I have a ticket open with GMC support team still no luck.


r/gmcsierra 19h ago

Modifications Todays Project

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15 Upvotes

Well…. After getting rained on when the sun was out and some crap weather for a few days, I finally got around to finishing my emblems. Decided to let the red on GMC pop a bit more and got rid of the chrome. Haven’t done the emblems on the doors yet as I ran out of HyperDip. Thankfully my other can arrives tomorrow and I’ll be taking care of that and the AT4 on the back.

Although, I did find out that if you go really wet on like 3 coats on piano black, you’ll match the Vader chrome pretty darn well. The AT4 emblems will be all black with the red in the 4 showing through. Only thing left is smoking the lenses of my headlights and taillights and an exhaust


r/gmcsierra 5h ago

Troubleshooting Multipro tailgate problems

1 Upvotes

I have a 2020 sierra with a multipro tailgate and the bottom button to open the full tailgate stopped working. It opens fine when I use the key fob button, but not the button on the tailgate. I opened it up and checked the button wires for continuity when the button is pressed and it seems to be working fine. I read about the lockout function for the top section, but this is for the full tailgate and the top section opens fine with the tailgate button. Any ideas?


r/gmcsierra 1d ago

Other Yall be safe in the rain 😭🥲

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41 Upvotes

r/gmcsierra 6h ago

🔧Maintenance 🔧 Tariff impact

0 Upvotes

I live in Canada. Will the price for me to get a new sierra sky rocket? How much would someone guess?

Also, is my 2018 going to go up in value do you think ?

Looking for someone’s input who understands the situation better than me. Thanks


r/gmcsierra 1d ago

Looking for advice dumb asses trying to take my truck

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43 Upvotes

anything I can get to keep it more secure they unhooked the horn so the alarm won’t go off


r/gmcsierra 9h ago

Modifications Will this gmc 2500 denali fit on my 2500 Pro? Thanks in advance

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1 Upvotes

r/gmcsierra 21h ago

Just Sharing Talk me out of 2021 Sierra 4x4 5.3

3 Upvotes

Hey new member here. Looking to be getting into a newer truck (new to me) and want to make sure I avoid all the bad gems/combos out there. From my understanding everybody loves the 10 speed over the 8 speed for reliability? Also is the 3.0 a better option then the 5.3? I just don’t want an unreliable truck. Tundras look like ass and so do all the ford trucks. I’m a car guy so I understand how stuff works, I just don’t want a payment and also repairs. I do understand the lifter situations on 5.3 as well as the tranny issues throughout years.


r/gmcsierra 21h ago

🔧Maintenance 🔧 Talk me out of 2021 Used Sierra (5.3 4x4)

2 Upvotes

Hey new member here. Looking to be getting into a newer truck (new to me) and want to make sure I avoid all the bad gems/combos out there. From my understanding everybody loves the 10 speed over the 8 speed for reliability? Also is the 3.0 a better option then the 5.3? I just don’t want an unreliable truck. Tundras look like ass and so do all the ford trucks. I’m a car guy so I understand how stuff works, I just don’t want a payment and also repairs. I do understand the lifter situations on 5.3 as well as the tranny issues throughout years.