GMC Sierra Complaints

15,732 consumer complaints on file.

#11630975December 16, 2024
SUSPENSION
Noise coming from rear leaf springs
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630788December 15, 2024
POWER TRAIN
On 12/11/24 I had exited I95N, While traveling down the exit ramp I felt my truck buck, upon the light changing I went to accelerate and the truck transmission slipped and barely got into first gear. I again came to another traffic light and the transmission did the same thing. I put my hazard lights on and shifted through all the gears and finally I was able to get the truck moving. The following morning I brought the truck to my local mechanic and I was told I needed a new transmission, which is going to cost me $4400. About a year prior my daughter had a similar problem with her 2018 Chevy Silverado in which she had to replace the transmission valve body. With both of these occurrences the truck gives you no warnings and just stops driving and causes a real threat to safety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630691December 14, 2024
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: BLIND SPOT DETECTION, FORWARD COLLISION AVOIDANCE: WARNINGS
The issues with my vehicle began when the radio intermittently cut off or froze. Despite several attempts by the dealer to resolve the problem, they were unsuccessful. Early on, various electrical components failed to load or perform correctly, with the dealer attributing this to software updates. Currently, when the radio cuts off or freezes, I experience additional problems: the headlights randomly flash between dim and bright, the heads-up display fails to load or shows incomplete information, the collision detection activates with no objects around, and dynamic cruise control becomes unreliable or fails to engage. The wipers operate randomly, and the vehicle stalls when the auto start/stop feature is engaged. Random warning lights appear on the dash, and each day brings new, different issues. A new symptom involves the vehicle not recognizing the keys are inside, causing it to shut off and lock me inside. This recently happened while I was driving at low speed in a parking lot, which poses a serious safety risk. On the interstate, safety issues are more concerning: headlights flashing on and off, dynamic cruise control failing, BLIS and collision control activating unexpectedly, and the vehicle locking me inside with keys in the truck. My children are scared to ride in the vehicle due to these issues. The dealer claims they cannot replicate the problems, despite videos I’ve provided showing malfunctions. They acknowledge the issues but blame them on software updates. Multiple updates have been applied, but the problems continue and are becoming more frequent, affecting more systems. The vehicle is under warranty, but as of December 13, 2024, the dealer has refused to service it. After the dealer completed some work, an independent inspection confirmed the issues persist. Warning messages and malfunctioning lamps have been captured on video. Problem has been reported from first service approximately 6/2023 as radio malfunction / electrical issues
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630713December 14, 2024
SERVICE BRAKES, POWER TRAIN, UNKNOWN OR OTHER
Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the breaks. I was nearly in an accident recently when the break pedal would not stop the truck in time, due to the soft break pedal. I literally had to steer to the shoulder of the road. 2) When placing transmission in Drive or Reverse from the park position, then taking foot off of break pedal, there is about a 1 - 2 foot roll, then the truck stops as if the e-break has been engaged (but it is not engaged). By tapping the accelerator, it will "break free" (with a popping sound and a slight "jerk" in the truck) and then roll fine. This does not always happen ~ guestimate of about 10% of the time. 3) I don't know if this is related, but when I set the Drive Mode to "Normal", it automatically goes to "Off Road" ~ this happens no matter the driving conditions. This isn't safety related necessarily, however, it may be a part of the total problem.... It also decreases my fuel economy. I took the truck to the local GMC dealer/shop. They said the truck had 2 recalls and they took care of those. They believed one of the recalls would help solve the "sticking" when placing in Drive or Reverse ~ it did not. They also (supposedly) checked the breaking system and took it for a test drive. They said the breaks were fine. I doubt this happened as the soft break pedal and the need to "pump" the breaks to bring them to full pedal is completely obvious. I took the truck home after the inspection and recall. The same issues continued, so I took it back to the shop where it was inspected again. Again, I was told everything was in working order ~ it is NOT! There are no warning lights that I can find to indicate there is an issue. I'm begining to think that I should have bought a Ram Truck...
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630738December 14, 2024
STRUCTURE:BODY
While driving approximately 70mph down the freeway the upper grille assembly snapped off and went airborne, it struck the passenger side of my windshield putting 2 large scratches on my windshield. It then hit the roof of the vehicle and continued over my vehicle. Upon inspection the guard is held on by extremely thin clips and all clips sheared in almost identical spots. This creates a huge safety hazard for motorists behind the Vehicle that could be struck by the flying piece.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630744December 14, 2024
ENGINE, FUEL/PROPULSION SYSTEM
This vehicle has 88400 miles, it out of warranty, which I know this, I use AMSOIL ASM SIG SERIES SYN SAE 0W-20 , 5.3L GAS. TWO YEARS AGO, I CHANGED OIL AT RICHARD BUICK GMC IN DAYTON, OH AND SENT A SAMPLE OF THE OIL TO OIL ANALYZERS FOR AN ANALYSIS, THEY SET IT BACK, IT SHOWED THERE WAS A LEVEL 4 SEVERE GASOLINE IN THE OIL. THEY CHANGED THE HIGH SPEEP FULE PUMP, BOTH IN JECTORS, AND IT THOUGHT IT WAS FIXED, ON 12 - 11 -24 HAD THE OIL CHANGED AT LOCAL BOYS SERVICE CENTER, SENT A SAMPLE OF THE OIL-TO-OIL ANALYZERS AND RECIEVED BACK, A SEVERE FUEL LEAK OF GASOLINE IN THE OIL, i DON'T THINK THAT MANY DRIVERS WHO HAVE THIS VEHICLE KNOW ABOUT THIS DANGEROUS PROBLEM, IT COULD CAUSE AN ENGINE FAILURE OR EVEN WORSE, GENERAL MOTORS NEEDS TO FIX THIS PERBLEM.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630570December 13, 2024
STRUCTURE:BODY, UNKNOWN OR OTHER
While driving down the highway, then without any warning the front upper lip of truck grille flew off randomly. The broken piece shattered windshield and caused damage to body of vehicle. Reported to dealer, but they said I must have hit something to cause the damage. I did not hit anything. I was simply driving down the highway. This was a failure of the truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630655December 13, 2024
ENGINE
Coolant control valve malfunction Vehicle placed into limp mode while driving with no way to reset. Vehicle taken to dealer and issued verified with part ordered. Multiple dash warning lights and several different limp modes activated prior to vehicle needing to be stopped
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630263December 12, 2024
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, ELECTRICAL SYSTEM
When I put the truck in 4wd the dash says service stabilitrak and the traction control light and abs light come on
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630315December 12, 2024
STRUCTURE:BODY
Upper molding of grille flew off while driving. Seems to be a common problem amongst 2022 Models of AT4
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630330December 12, 2024
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
The contact owns a 2020 GMC Sierra 1500. The contact stated while reversing the vehicle, the rearview camera image failed to display as needed, and the radio was inoperable. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 3,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630356December 12, 2024
POWER TRAIN
transmission has a shudder when accelerating and after shifting through all gears (8speed) during cruise mode when going on an incline as in overpass it starts to shudder and seems like it is trying to find the right gear to go into .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630406December 12, 2024
POWER TRAIN
Failed transmission
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630193December 11, 2024
STRUCTURE:BODY
As I was driving on the highway the upper top moulding from the grill came off causing scratches to the hood. This is dangerous if it flies off into the windshield. This has been an issue for GMC.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630205December 11, 2024
FUEL/PROPULSION SYSTEM
The pigtails to the injectors are prone to failure. The vehicle without warning throws multiple codes and immediately limits power and speed while shaking. This can cause a dangerous driving situation. This is a known problem and is on many online forums as a common failure. The repair shop gets so many of these that they were able to diagnose the issue over the phone and noted that it usually happens around the 200k mile mark. However many reported this as an issue while under warranty. The issue is with the metal connector material being prone to failure and arcing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630226December 11, 2024
ENGINE, FUEL/PROPULSION SYSTEM
On Friday, December 6, 2024, my “check engine light” illuminated on my 2017 GMC Sierra pickup. The engine is the gasoline version of the 5.3 liter. I took my truck to Brogden Buick/GMC in Olathe, KS. They informed me the trouble code was 219a, indicating there was a problem with the fuel/air ratio. On Monday, December 9, 2024, I was contacted and informed the fuel injectors needed to be replaced at a cost of approx. $2700. Based upon research I’ve conducted GM’s fuel injectors have been a service concern since approximately 2014. Service bulletin DCS5097 (N182198000-Special Coverage Engine Fuel Injector) was issued on July 26, 2019 that included my engine configuration. However, this particular bulletin does not appear to cover my Kansas based vehicle. I just had my vehicle at Brogden for a previous check engine light two weeks ago. This required replacing the fuel cell pressure sensor at just over $700. These repairs seem to be related. I’m reading that 2023 and 2024 Chevrolet and GMC trucks are also having fuel injector issues. This seems to be an ongoing problem that GM does not appear to be appropriately addressing. My truck is relatively low mileage with only 58,786 miles. It has never towed, is garage kept and is maintained in a pristine condition. I’ve never experienced fuel injector issues any any previously owned vehicle .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630238December 11, 2024
ENGINE
Failing coolant control valve causing reduced acceleration warning and engine overheating. Replacement parts unavailable from GM. Vehicle has been at dealership for a month and showing symptoms sporadically since the first few thousand miles getting increasingly worse over time. Reduced acceleration caus d many unsafe incidences when on the highway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629954December 10, 2024
SERVICE BRAKES
My pickup was specifically purchased to pull a duel axle trailer ( brakes required by Fl. Law). The trailer weights more than the pick up. They stopped working with the electric /hydrolic Trailer brake system. I have had the Sierra in three times for Warren Ty repair. They never fixed the system. I have thoroughly test the trailer system - it works fine with another pickup. Dealer won’t return my calls. Multiple trips taking it in for this problem. Have a case filed with GM. All just placating me, now ignoring my problem. I am stuck and they are not acting in good faith.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629610December 9, 2024
STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 65 MPH, the radiator grille detached from the front on the vehicle. The vehicle was not taken to a dealer or independent mechanic to be inspected or repaired. The manufacturer was notified of the failure but offered no assistance. The approximate failure mileage was 50,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629641December 9, 2024
LATCHES/LOCKS/LINKAGES
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 15 MPH and making a right turn, the tailgate erroneously opened causing a metal toy to fall out of the truck bed onto the highway. The toy was run over by a second vehicle causing damages to the front-end of the vehicle and destroying the toy. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in NHTSA Campaign Number: 24V060000 (LATCHES/LOCKS/LINKAGES). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 72,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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