r/gmcsierra

I’ve officially hit my breaking point with my 2018 Sierra SLT 5.3 (71k miles).

I bought it at 7k miles, kept a perfect maintenance record, and never beat on it. No warranty, but I figured with how well I take care of my vehicles, I’d be fine.

I was wrong.

In the last 2 years alone, I’ve spent about $10k on repairs, and now I’m being told I need to drop another $5k. I’m not doing it. I’m trading it in and moving on.

Here’s what I’ve already had to fix:

- Rear axle leak

- Both front wheel bearings

- Touchscreen (glitching out)

- OEM catalytic converter

- AC compressor + recharge

- Spark plugs and wires (random misfires)

- All tire pressure sensors (TPMS)

- All turn signal indicators

- Battery and brakes (normal, fine)

- Hood latch sensor (constant “hood open” warning)

And now:

- Exhaust/resonator or full muffler system failing (loud grinding noise)

- Random “reduced power / steering drive with caution” warning

- Body already developing significant rust

All of this at 71k miles. It’s honestly insane.

On top of that, the dealership experience has been terrible. Appointments are always 3+ weeks out, prices are ridiculous, and the service attitude hasn’t helped at all.

I always thought GMC was a solid brand, but this truck completely changed my perspective. I planned to take this thing to 200k miles, but instead it’s turned into a money pit before even hitting 75k. Just waiting for the transmission to blow up around 100k.

I’m moving on to a 2026 Tundra Limited with a 10-year platinum warranty. My dad and brother both have Tundras and haven’t had any issues, so I’m hoping for a completely different ownership experience. I know there were some concerns with the 2022–2024 engines, but the warranty gives me peace of mind and I’m getting a 2026.

Curious if anyone else here has had a similar experience, or if I just got unlucky.

Was nice being part of this sub, but I’m out.

Okay so I went to the dealership for collapsed lifters and they said it would be 4k to 5k fix then I brought to an independent shop and they are saying 8.5k fix after taking the top engine part out

Do I go back to dealership?

2025 Sierra Elevation 3.0 Diesel

Who decided to make the transparent camera calibration so difficult? Last week I installed the camera on the back of my travel trailer. I was able to see the camera thru the camera app, but had issues calibrating it, so I quit.

This weekend I tried again. Again I could use the camera thru the camera app but the trailering app constantly said that the camera was not connected. After driving around for abd hour I parked the TT and started working on other things. For shits and giggles I decided to check the trailering app before I disconnected from the truck. Suddenly the trailering app is recognizing that the camera is connected.

I decide to take it out on the road again to see if it will calibrate. Nope. Drove around for over an hour, on streets with painted lines and some with no lines. I kept it under 31mph, I saw the cal progress line but it never moved. Trailering app would say cal failed see owners manual.

I heard that if you change one of the measurement values it will put the trailering app back into cal mode which it did. I started watching the trailering app instead of the progress bar in the camera feed.

When I was in Park, it would read, not calibrated. As soon as I put it in Drive, it would switch to calibrating. After letting off the brake but before I got to 10mph it would switch to cal failed see owners manual.

I've been trying to get this thing calibrated for 2 weeks with no luck. I still have my spare tire mounted to the bumper, which is in the camera frame. Could that be the problem?

Anyone else have this much trouble getting calibrated

I’m heading to San Diego soon for the foreseeable future and looking for shop suggestions to do weight loss program on a ‘24 L5P. I have a guy in the Central Valley but won’t get it done before I leave so looking for someone’s recommendations down in SoCal

I have a 2017 gmc sierra and have always had the feature turned on where I get a text message on my iPhone and a little banner notification pops up on my truck display and on the little screen on the dash. I do not use Apple car play, this is just the default system. It doesn’t display the text message but just is a notification saying John Text message or something. Now suddenly I do not get any notification on the truck when I receive a text. I have factory reset the truck system, reconnected my phone and repaired as a new device, everything. I noticed that now when I repair my phone it does not give me the option to “show message notifications” anymore for my truck, where it does give me the option on other car Bluetooth systems I am paired to. I’ve also labeled the device type as a car stereo in my phone, and also just not labeled it at all and still can’t get the “show message notifications” option to appear again. Is there a way to get around this? I’ve never used the Apple car play on the truck and really do not want to.

i bought a 23 Sierra 1500 diesel and it only came with 1 key. I had another key made but the keys are #3 & 4 in the system so I can't use the memory functions.

I contacted the local dealer and they said they won't configure keys they didn't sell. if they won't fix the problem, is there any way to get these keys coded? I'm not spending $800 on 2 new keys for their stupid policy.

I got a 2010 GMC Crew Cab Sierra that is in desperate need for dash replacement, the only thing holding it together is the ac and radio units. Does anyone know where I can get a good dash replacement?

Hi all,

The touchscreen went black on my Sierra . When I reversed out of a parking spot immediately after, the rear view camera turned on and stayed on the screen. Anyone else have this problem and how would I troubleshoot it? Fuses, disconnect the negative battery terminal, etc.?