GMC Sierra Complaints

15,732 consumer complaints on file.

#11628489December 3, 2024
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
Infotainment system volume shot up full blast on its own with no operator control or influence. The volume of music was so high that it was hard to concentrate on driving while trying to reduce the volume and could not. Had to pull over on the side of the road and shut off vehicle to get the volume to go down. This could be a potential safety risk when driving at higher speeds causing the driver to not concentrate on the road and other surrounding vehicles. I reported issue to dealership and have not had it looked at yet as it has only happened one time. The volume indicator flashed on the screen and showed the volume indicator bar going up to full blast. No other indicators or warning were present at the time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628550December 3, 2024
FUEL/PROPULSION SYSTEM
Engine stops running due to a known problem with GM's Fuel Pump Control Module. The unexpected shutting off of the engine poses a serious risk to passengers and other vehicles while operation on all roads. There are numerous vehicles in the service centers of all GM dealerships with the exact same failed part. The three month backlog on receiving parts is indicative that GM knows about this problem and has not issued recalls.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628643December 3, 2024
ENGINE
Vehicle is a 2018 GMC Sierra Crewcab 4x4 with a 5.3 engine. The vehicle was purchased new in Washington and serviced at the Chevrolet dealership in Oregon within vehicle recommended service intervals. At 64K miles, the engine developed a sudden AFM lifter issue. Lifter for cylinder #6 came apart causing the engine to miss, smoke, have excessive oil on the spark plug, and low cylinder PSI (75 compared to others at 200+). Vehicle is just outside of it's 5 yr/60K powertrain warranty. Vehicle is undrivable and will need probable engine replacement due to damage from AFM lifter failure. My mechanic verified the miss, oil on the spark plug, and low PSI. The local Chevy dealership removed the valve cover, inspected, and advised that the lifter came apart. Dealership wants $1200 to pull the head to determine extent of damage and $4-5K to repair valves or $12-14K for engine replacement. GM offers no assistance at this point.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628653December 3, 2024
STRUCTURE:BODY
Top Grill piece attached to hood blew off in the wind.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628694December 3, 2024
UNKNOWN OR OTHER
Power sliding window leaking water. Available for inspection upon request. Leaking water can lead to mold posing in the vehicle leading to a health concern. Problem was inspected and verified by dealer and initial service bulletin repair was made to apply vehicle sealant to the top of the window. Window still leaked after the initial repair. Dealer planning to replace the entire rear window. This appears to be an issue with multiple years of GMC and Chevrolet trucks with sliding rear windows. No warning lamps associated.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628214December 2, 2024
ELECTRICAL SYSTEM
Noted the rear sliding window did not work. Upon further research and investigation found fuse 2 in the drivers side fuse box popped. Replaced the fuse and did not solve the problem. Further investigation found the harness that controls the rear sliding window and other items was sheared (all 3 wires cut in half). The harness is routed from the inside of the center console, through the drivers side hinge (pinch point where it cut the harness, and to the backside of the center console. Spliced the wires and reconnected confirming the fix to the problem. This issue poses a fire hazard. Recommend a recall to reroute the harness or a form of corrugation to better protect the harness and prevent further issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628299December 2, 2024
STEERING
The steering wheel locked up with no warning while driving and truck shuts down and displays no power steering assist service. ERC warning twice in one week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628321December 2, 2024
SUSPENSION, STEERING
Front upper control arm ball joint separated from socket.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628404December 2, 2024
UNKNOWN OR OTHER
Had tailgate switch safety recall completed in June 2024. Beginning November 25th, 2024, tailgate switch began randomly opening tailgate while driving and parked with vehicle turned off. The lower “push button” in attached photo is the one that controls the tailgate. One time while closing tailgate, the switch kept activating repeatedly for nearly a minute before it stopped. We live in the mountains and have been having heavy fog and rain. Contacted dealer and dealer stated that we would be responsible for repair. Contacted dealer on December 2, 2024 and dealer scheduled truck for repair December 18th 2024. Truck is not equipped with any indicator if tailgate comes open. Have to keep tailgate strapped shut at all times now.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628414December 2, 2024
FUEL/PROPULSION SYSTEM, STRUCTURE:BODY, SUSPENSION
Cross member holding file tank rusted through causing the fule tank to not be supported and shock mounts no longer support the shocks to frame causing shocks to bounce around with possibility to puncher fule tank or lines Also rear cross member that holders electrical components rusts off Excessive rust on top of fule tank causing a inability to make repairs without replacing fule tank in entirety
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628435December 2, 2024
SUSPENSION, AIR BAGS, WHEELS
The contact owned a 2024 GMC Sierra 1500. The contact stated while his wife was driving at 50-55 MPH, the front passenger side tire detached from the vehicle, and the front passenger side was damaged. The air bags did not deploy. A police report was filed. His wife sustained injuries to the neck and shoulder which required medical attention. The vehicle was not diagnosed or repaired. The vehicle was towed from the scene and deemed a total loss by the insurance company. The contact stated that the ball joint, hub bearing, and 4x4 drive shaft were damaged. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11627824November 28, 2024
ELECTRICAL SYSTEM, BACK OVER PREVENTION: WARNINGS, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
At around 28,000 miles the truck started having intermittent electrical issues. The head unit will show a blue screen. Safty systems will automatically disable. Camera system failures. Even though the truck is a 2019 model it only has around 31,000 miles on it and is now out of warranty and I can’t afford to have the dealership chase electric issues. GMC should be ashamed of putting out such an unreliable vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627849November 28, 2024
POWER TRAIN
2024 Gmc sierra Denali ultimate 3500hd equipped with duramax lp5 and Allison 10 speed transmission mission. Towing cargo trailer Thursday November 21 up 4 degree incline transmission let loose banged and popped slammed to a stop almost causing accident and went to limp mode. Took to dealership in show low Arizona. Was told this is common problem and it’s the valve body assembly and parts are 60-90 days out. Mind you this truck was ordered from factory and received in march of 2024. The truck has 21k miles. So now a vehicle I bought specifically for business to haul a spray trailer will be down 2-3 months with no loaner to use to operate our business.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627865November 28, 2024
ELECTRICAL SYSTEM, ENGINE
When driving the truck sometimes all the gauges start to go out and go back and forth all the dash lights go on an the whole truck goes to low power an only goes about 10miles per hour you pull over and let it cool down for about 20to30 minutes and can start the truck and drive off again took it’ to the dealer for a plug in and he said no code is showing up and can not help me its been doing this for 1and a half years
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627873November 28, 2024
POWER TRAIN
The vehicle had a shudder when I first bought it and towed a boat. Around 60-70 it felt like a tire out of balance. The truck is stock no alterations. New tires and the vehicle has the same shudder. Had the tires balanced three times at different tire shops with no correction. I was getting my oil changed and the shop suggested a transmission and transfer case oil change. Once they looked up my vehicle they told me I would have to go to a dealer for the transmission oil change. I brought my vehicle to a GM dealer for the transmission oil change. They diagnosed my vehicle with a bad transmission causing the shudder with the only fix a new transmission at $7,800. I have yet to replace my transmission. Reading only thousands of GM owners complaining about the transmission issues. Two other types of transmission have had recalls and fixes but this version no fix. GM knowingly has produced thousands of faulty transmissions not offering to correct. I have spoken with multiple transmissions shops and they all know the issues. GM should honor their faulty product either replacing or correcting it. It’s a shame. I didn’t realize what the issue was till it was past the warranty. Upsetting knowing it was messed up from the new sale.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627874November 28, 2024
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
I remote started my truck and entered the vehicle with my girlfriend approximately 3mins after remote starting. We immediately smelled smoke that smelled like an electrical fire. I heard sizzling/static-like/electrical short sounds coming from back seat and when I looked back, I saw thick white smoke pouring out of the the small black plastic trim piece on the rear power sliding window that covers the electrical connections between the sliding pane of the power sliding window and the solid, non-moving pane of glass on the passenger side of the rear window assembly. I immediately shut the truck off and climbed into the back seat with a flashlight to investigate. While looking at the rear window, the passenger side non-moving pane of glass in the rear window EXPLODED very loudly, which actually hurt my ears. The glass stayed intact but spider webbed the entire pane. I immediately pulled the fuse for the rear defroster and cleared the tremendous about of smoke that had filled my cab. The window continued to make sizzling and static like noises for the 20min ride home. Upon investigating this issue online, I discovered that GM has issued a recall on this defect for all of Canada and only certain US states that are above a certain longitude, which doesn’t include my state of PA. I am terrified to use my remote starter on the vehicle now or even preheat the truck manually for fear of burning mu truck down. I contacted a GM dealership who told me my truck didn’t have any active recalls on it and to file an insurance claim. I have since filed a complaint to GM customer service who is investigating my claim to determine if they will cover the repair. They said up to 30days to make determination! This is a huge safety hazard that is known and acknowledged to be in every Silverado and Sierra with a power sliding rear window within the model years 2014-1017
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627641November 27, 2024
ELECTRICAL SYSTEM
Part # 23337305 OEM Towing Control Module failure. replaced with factory part and unit failed within 60 days.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627642November 27, 2024
ELECTRICAL SYSTEM
Rear sliding window defogger started smoking, filling the cab with smoke
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627652November 27, 2024
STRUCTURE:BODY
As I was driving down the highway, the top piece of the grill flew off, went airborne, and almost struck the vehicle behind me. When I got home, I looked to see what caused this to happen. The piece was secured by flimsy plastic clips which had broken off. This is a complete manufacturing defect which is on GMC Sierra 1500s years 2022 to present and needs to be recalled. It's happening to a huge number of people based on the reports on Facebook groups.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627659November 27, 2024
STRUCTURE:BODY
Upper grille trim piece flew off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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