
GMC Owners Forum » GMC Sierra
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Forum for discussions regarding the GMC Sierra
GMC Owners Forum » GMC Sierra
2d ago
I have a 2021 Sierra that was built for Canada now I own it in USA, I want the daytime running lights off but Canadian sierras they are on constantly, how do I get them off ..read more
GMC Owners Forum » GMC Sierra
1w ago
I'm looking to replace my tailgate back up camera on my 2016 Denali. The dealer price is ridiculous. Anyone have experience with a good aftermarket camera?
Cheers ..read more
GMC Owners Forum » GMC Sierra
1w ago
Sorry if this a repeat topic, I have a 2022 2500 AT4HD. Almost every day as I head to/from work my auto headlights and my lane departure systems quit working, sometimes they turn back on, then turn off again. I thought maybe I was location, maybe weather, but it’s not. Has this happened to anyone else? Thanks ..read more
GMC Owners Forum » GMC Sierra
1w ago
I have 2022 GMC 3500HD Duramax. I recently replaced both batteries and now the charging system is charging @ 15.5 volts and a check charging system warning comes on. While replacing the batteries I sparked the positive passenger side battery, what could be the problem ..read more
GMC Owners Forum » GMC Sierra
1w ago
I'm looking to replace my tailgate rear camera on my 2016 Denali.
The dealers price is ridiculous. Any suggestions on an aftermarket camera.
Cheers ..read more
GMC Owners Forum » GMC Sierra
2w ago
has anyone every tried to connect a 3rd party dash camera into the rearview mirror console? Just purchased the Vanture 360 front and rear Dash Camera and would like NOT to have to hard-wire the system into the fuse box under the hood ..read more
GMC Owners Forum » GMC Sierra
2w ago
2022 GMC Sierra AT4
Driving down the highway actually on an exit ramp between main highway and another major road when the engine shut down and the dash said something about press start button to restart (or something like that). Pulled onto the shoulder and the truck won’t crank. All lights are fine, everything works but when I press the start button the dash goes blank, all lights go off for a few seconds and then returns to normal. Doesn’t even try to crank. I replaced the alternator...
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GMC Owners Forum » GMC Sierra
3w ago
I have a 2016 duramax 6.6 and would like to wash off all the dust and dirt! Can it be done safely and do I have to cover any sensors ..read more
GMC Owners Forum » GMC Sierra
3w ago
I get a message on dash of my 2021 GMC ATX4 that says “Sim card has been removed”.
The SIM card has not been removed.
How can this be fixed ..read more
GMC Owners Forum » GMC Sierra
3w ago
I have a 2015 GMC Sierra 5.3. It had been making an odd noise when driving that would stop if you slightly applied throttle or slightly let off. I decided it was related to the AFM. I ordered a AFM disabler to go in the OBD port. The noise has completely stopped now. My question is this: should i be assuming i have lifter issues since the disabler stopped the odd noises? Should i be considering getting into the valvetrain or should I just drive since the noise appears to be gone? Am i doing...
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