Equipment Problems of GMC Sierra 1500 - part 1

Electronic tailgate failed when driving uphill. Tailgate fell open.

See all problems of the 2022 GMC Sierra 1500 🔎.

Telematics (onstar) module dealership has checked it, the telmatic module is bad. And the dealership I went to dossit big 4 in tupelo ms told me this has been a problem with this truck. And are wanting me to pay $645 to fix it. After they just did some recalls and updated the software. This was working before then.

Coolant control valve failing. Warranty not covering this part. Seems to be a manufactured issue. Happening on a lot of 2021 gmnc sierras with the 3. 0l duramax.

See all problems of the 2021 GMC Sierra 1500 🔎.

Safety complaint – delayed acceleration from automatic engine stop/start I am reporting a safety concern regarding the automatic engine stop/start system in my GMC truck. During normal operation, the system shuts the engine off when the vehicle comes to a complete stop. When I release the brake and press the accelerator, there is a noticeable delay while the engine restarts before power is delivered to the wheels. This creates a hesitation between driver input and vehicle response. This delay presents a safety concern because it affects my ability to react quickly in situations that require immediate acceleration. I have experienced multiple real-world scenarios where this hesitation impacts safe operation: while stopped at an intersection preparing to turn, I observed oncoming traffic approaching faster than expected. When I attempted to accelerate to complete the turn, the delay caused by the engine restart reduced my ability to clear the intersection promptly. In stop-and-go traffic, I needed to move forward quickly to maintain safe spacing or respond to changing traffic conditions. The hesitation before acceleration limited my ability to react immediately. When pulling into traffic from a parking lot or side street, heavy traffic often creates small gaps that require prompt acceleration. Due to the delay in engine restart, it is difficult to accurately gauge and anticipate the truck’s response when pressing the accelerator. With this hesitation, safely merging into traffic in these conditions becomes extremely difficult and, at times, effectively impossible. In situations where a vehicle encroaches into my lane or a hazard develops unexpectedly, the delayed throttle response reduces my ability to maneuver out of the way quickly. This is not simply a convenience issue. The system introduces a delay between driver input and vehicle response, which can reduce reaction time in situations where immediate acceleration is necessary to avoid a potential hazard.

See all problems of the 2025 GMC Sierra 1500 🔎.

Engine coolant control valve.

I took my truck in for routine maintenance. When I got it back and turn the truck on, the instrument cluster was completely black. I couldn't get it to turn on. I went back into the dealer and informed them of the issue. The claimed they had not done anything electrical the dealer has told me that they are not sure why it has stopped working but they did let me know they had to replace several instrument clusters with other customers. I am unsure if they had paid for the replacement or not. I've looked online as well and seen multiple GMC truck owners having the same issue and getting their instrument clusters replaced as well. I've noticed this is happening with 2022 models and above. Please look into. Thank you.

See all problems of the 2023 GMC Sierra 1500 🔎.

Onstar module failed. Unable to fix and needs replaced. Thousands of other individuals having same issue. Car can shutdown without warning while driving. This issue must be addressed by gm.

Vehicle fire. Total loss. While driving, vehicle began to smoke from under the hood. Fire grew rapidly and vehicle is totaled. No warning signs leading up to the incident.

“service driver assist system” message appears every time I turn on my truck. Vehicle would randomly break when driving at slow speeds and show the forward collision alert even if no objects/ car are approaching or being approached. I am concerned about my safety because those sudden hard-breaks could cause an accident.

See all problems of the 2024 GMC Sierra 1500 🔎.

Please append these work orders to this complaint number and VIN complaint: number xxx VIN: [xxx] three repair orders from beck & masten GMC south attached. Thank you!!! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

While driving at high way speeds the radio volume went to maximum high. I was unable to turn the volume down by any inputs. Mute was inoperative. Volume controls were overridden by the glitch. My hearing has been affected as well as the infant that was in the back seat. This is a serious condition that has now happened 4 times. No assistance from general motors. My ears have been ringing for 3 straight days now. This issue had happened since I bought the truck new in 2022.

P1098 code coolant control valve fail service bulletin n252508341 my VIN not covered but same motor and same part !.

I’ve owner the vehicle since new. My a/c condenser has failed 3 times, meaning I’m now about to be on my 4th. The welds are weak and it cracks in the same spot 95% of the time. It should last more than a 2 year average.

See all problems of the 2018 GMC Sierra 1500 🔎.

The rear window on my 2017 GMC sierra shattered unexpectedly without any impact. The vehicle had been remote started in very cold weather and the rear window glass suddenly shattered while the truck was parked. There was no rock strike or external damage that would explain the failure. I later learned about gm customer satisfaction program n192265660 regarding rear window defroster thermal events affecting certain 2014–2019 GMC sierra and Chevrolet silverado trucks. Based on the sudden failure and the conditions at the time, this appears consistent with that issue. The auto rear defog feature in the vehicle settings was turned off, however the truck had been started using the remote start feature when the glass shattered. Photos of the shattered window are available. I am submitting this report because the rear window defroster system may cause the glass to overheat and shatter unexpectedly.

See all problems of the 2017 GMC Sierra 1500 🔎.

When my android auto does not connect, it essentially disables the whole infotainment system which is incredibly distracting and dangerous while driving. I am requesting that this be fixed so that I can still use some of the infotainment system but they are redusing to to do anything to fix the issue. The dealer has advised that they are unable to fix the issue because it is software related but yet the software team is saying it is a dealer issue. Please help me get a resolution to this issue!.

While driving 65mph in my 2024 GMC sierra denali ultimate on interstate 270 in hilliard, ohio my chrome grill deflector just flew off and hit my windshield. It then went over my truck and almost caused a major accident with the cars and semi-trucks behind me. I was lucky to maintain control of my own vehicle! it appears to me that the mounting fractured and it looks like manufacturing defect. Looks like the same issues recalled in 2022 year models. How many have to die before gm fixes this issue? they now want $1,500 for a new grill on my 2024 truck.

Premature frame rot.

Was driving down interstate and the top of my grill came off and smacked my windshield. Also, my tailgate opens on its own but the grill is the main safety issue. I have seen where they already have recalls on 2022s and earlier due to chrome grill coming off but mine is a 2023 and gm is refusing to honor it when it is obviously the same issue. Was very scary and could have caused a wreck as grill ended up on interstate being thrown around by vehicles. Gm stated I would need recall added to my VIN in order for them to pay for it. Thank you!.

I had this truck as brand new for approximately 24 hours when it had a major failure. It had 450 miles on it at time of purchase, but was sold as new. While driving at 45mph it had a check engine light, service power steering message, lost power steering, lane departure system failure, and reduced power amongst several other lights on the dash. I limped the truck into a gas station parking lot. After turning the truck off, it would not restart. I unhooked the battery for a minute and hooked it back up. The truck did restart with no messages or check engine light. I was able to safely get it to the dealership. As a result of this issue, I forced the dealership to cancel the trade.

Rear glass window shattered due to the defroster getting too hot. Some smoke was noticed.

Rear tailgate on my 2021 sierra opens or drops when wet. This seems to only happen in a heavy rain or after a truck wash. This problem has been recognized by the manufacturer and the dealer. There is no warning other than the constant clicking of the electric switch allowing the tailgate to drop. This problem has been recalled on the 3/4 & 1 ton trucks but not the 1/2 ton. The tailgate and switches are the same on all 3. Because my VIN# does not show for this recall I had to pay for the replacement.

Engine lost all power while I was attempting to make a left turn at a very busy intersection. Dash kept saying “check battery”, jump pack did nothing. Engine wouldn’t start.

Coolant control valve failed, truck cannot be driven due to overheating, dealer has said due the national backorder, it could be 2 months before they receive the replacement part. There is a significant national backorder on the engine coolant flow control valve for 2020–2025 GMC sierra and Chevrolet silverado trucks equipped with the 3. 0l duramax (lm2/lz0) diesel engine. Many owners are reporting wait times of several weeks to months, with some vehicles sitting in repair shops for over 70 days.

The vehicle camera camera system is sometimes not available at startup and will not reset until the vehicle is allowed to sit for several hours. This prevents the backup camera, forward camera and side mirror cameras from providing an in-dash video of vehicle surroundings, which is especially critical for reversing direction or backing-up. Typically the camera will reset after sitting from a period of time. I have reported it to the dealer, but their position has been that since camera has always been working when I bring the truck in for service, is that there is really nothing they can do to correct the intermittent issue.

I remote started my truck. I got in about 5 minutes later. When I shut the door the rear window, passenger side of the power sliding window blew out. Gm says my VIN is not affected by the recall but my truck shows that it should have been part of the recall or customer satisfaction program. N192265660 rear window defroster thermal events.

See all problems of the 2015 GMC Sierra 1500 🔎.

The contact owns a 2026 GMC Sierra 1500. The contact stated that after purchasing the vehicle, there was no owner’s manual in the vehicle. The contact inquired about the owner’s manual and was informed by the dealer that an owner’s manual was no longer printed. The contact checked online and became aware of fmvss 225, which was related to the owner’s manuals for similar vehicles. The contact researched NHTSA campaign number: 25v815000 (equipment), addressing the lack of an owner’s manual for 2026 Chevrolet silverado 1500, 2500, and 3500 vehicles. The manufacturer was not notified of the issue.

I was driving on the highway at about 80 miles per hour and all of the sudden, a piece of the front grill detached and flew off, hitting the top of the of the roof.

Onstar module is not working.

I was driving down the road the front piece of the grill flew off the truck and hit my windshield, then flew into oncoming traffic.

For the past month I have noticed my truck has been dripping oil, I pulled the shield off and saw my engine oil cooler lines leaking at the crimp points. I’ve seen gm put out customer satisfaction notice but when I tried to have the dealership fix mine they said mine is covered under any recall or warranty. If the line comes uncrimped at highway speeds I’ll lose all my oil where the trucks engine could lock up and lose all forward motion and in my eyes could cause a crash.

See all problems of the 2019 GMC Sierra 1500 🔎.

Driving down the road, the radio volume will randomly rapidly increase to full volume. There is no way to turn the volume down. This is very startlingly and can lead to an accident due to the driver panicking and trying to turn off the radio or turn the volume down. It has happened approximately 5 times since I have owned the vehicle. Thie first time was when the vehicle was only a few months old. It happens so infrequently that it cannot be reproduced. It has not been confirmed nor inspected by a dealer. There is no warning as to when it might happen, nor any similar circumstances when it happens. The only solution I have found is to stop, turn off the vehicle and open the door for a minute or two, which is difficult to do in traffic.

The front chrome grille deflector came off 9-10 months after the dealership inspected it.

My 2020 GMC sierra has had poor gas mileage problems I have taken it to gm a few times with them not able to dind anything wrong through diagnostic. A couple years later my horrible gas mileage came back and service ecs and stabilitrack message came back on and disappeared. I spoke to another shop and they advised me its the dfm lifter issues that everyone has been talking about. So the shop performed the well know fix and has fix the issue. A month after now the valve body gave me a p2817 code showing that the solenoid is stuck in the off and was also advised that this is a know issue being addressed. Currently the truck is in the shop. When is enough enough with all the issues across the nation whwn is gm going to make it right.

See all problems of the 2020 GMC Sierra 1500 🔎.

Transmission 10l80 stuck solenoid truck has hesitation delayed shifting. And will not shift after certain gears.

Tailgate is randomly dropping while driving without any tailgate drop buttons being pushed. It’s is starting to occur more frequently.