GMC Sierra Complaints

15,732 consumer complaints on file.

#11638475January 25, 2025
ENGINE
Driving on hwy at 65 mph truck shut off without warning and display said shift to neutral and push start. Truck wouldn’t shift and nothing worked. Coasted to the shoulder where I sat for 5-6 hours waiting for a properly equipped tow truck. Motor was seized.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638502January 25, 2025
ENGINE
My truck without warning the motor seized and stranded me in the side of a major route. This happened while driving 55mph and lost power and coasted to side of road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638505January 25, 2025
ENGINE
Engine seized up. This is the second 6.2L engine that this happened to. The first one was a lifter failure and 2000 miles After replacement engine locked up. Brand new engine at 26000 miles. Now at 68000 the new engine seized up with no warning
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638549January 25, 2025
ENGINE
I was on a hunting trip when my almost brand-new GMC Sierra 6.2L broke down, approximately 20,000 miles on it. The vehicle started making a ticking noise while I was driving out of state, en route to our lodge. Early the next morning the engine light came out and the vehicle came to rest close to a stop sign. I was very fortunate someone was following me in a different vehicle. The vehicle would not start afterward and had to be towed to the closest dealership. Being a new GMC owner and nearly 7 hours away from home and in an unknown area was extremely stressful. The dealership service department was closed on Saturday (the date of the incident) and Sunday. The dealership was less than helpful and did not return my phone calls on an already stressful day. My trip ended on Sunday and I was forced to rent a car at Enterprise. Unfortunately, the Enterprise I contacted did not have a truck and GMC told me that the dealership could not provide a loaner truck. I’ve needed a truck several times this month, which has caused difficulties for me and others. The vehicle has since been inspected and the service department stated the vehicle needed a new engine. This occurred 21 days ago and there is no end in sight. The service department could not tell me an exact date on when the engine would be shipped to their store.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638259January 24, 2025
POWER TRAIN
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 30-35 MPH in third and fourth gears, the vehicle vibrated and shuddered significantly. The check engine warning light was illuminated. The contact stated that upon shifting out of third and fourth gear, the vehicle responded as needed. The contact stated that the failure progressively worsened while driving in third and fourth gear. The vehicle was taken to Wyatt's Automotive Repair, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 97,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638263January 24, 2025
STEERING
On 01/07/2025 I got in my truck to take it to GMC for an oil change and 75,000 mile service. When I began to drive I noticed I could barely turn the truck at all. The power steering was not working. Then a warning popped up to have the power steering serviced. The GMC dealership is an hour from my house. The entire drive the power steering didn't work. I explained what was going on to the GMC dealership and when they went to look at the truck the power steering was working again. When I left the dealership the power steering was working. I stopped at a friends house for about an hour and when I went to leave the power steering was not working again. I ended up having to drive an hour again with no power steering and made an appointment with GMC to get the power steering looked at. Currently they haven't commented on the Power Steering function but rather that there is a gear needing to be replaced in the steering column. Upon looking online it shows "Several model years of GMC Sierra trucks have been subject to a recall for intermittent power steering issues related to electrical glitches within the EPS system." However, my truck seems to not be on this list of affected vehicles but there is no other explanation of why this is happening with my truck and GMC has not commented on why it is happening but it is extremely dangerous.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638301January 24, 2025
ENGINE, ELECTRICAL SYSTEM
The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving on the highway at various speeds, the vehicle occasionally shuts off. The contact stated that several unknown warning lights were illuminated. The contact stated that the vehicle was pulled over to the side of the road and restarted. The contact was able to continue driving. The vehicle was taken to a local dealer and was diagnosed; however, the cause of the failure was not found. The contact was informed to take the vehicle back to the dealer if the failure returned. The manufacturer was notified of the failure. The approximate failure mileage was 128,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638322January 24, 2025
POWER TRAIN
Transmission has had shifting, shudder and failure to go into gear from day 1 of owning the truck. Has been to the dealer on several occassions for the same issue just to be told that they either could not reproduce the issue or it was normal. On another occasion the dealer was able to notice some shudder and shifting issue and replaced the valve body under warranty. Now that the vehicle is out of warranty I’m being told the vehicle needs a complete transmission rebuild and torque converter at an out of pocket cost to me of $8500. I know of many others with the same issues from the onset of owning these vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638438January 24, 2025
ENGINE, WHEELS
Le Moteur Le 13 décembre 2024 le véhicule arrêté subitement je tente de le redémarrer et ne demarre plus à plusieurs reprises je branche un obd2 et cela indique crank sensor j'envoie le véhicule au dealer et me dise qu'il y a quelque chose dans la base et aujourd'hui ils y est encore Les pneus Certains Flan de pneu de ce véhicule sont fissures tous le tour des roues
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638440January 24, 2025
UNKNOWN OR OTHER, VISIBILITY/WIPER, POWER TRAIN
Unknown , I don’t know why are your recalls module
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638208January 24, 2025
ENGINE
Lifter noises, error codes for misfires, lost power
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637853January 23, 2025
EXTERIOR LIGHTING
The front left headlamp assembly low beam light unexpectedly began to flicker repetitively until the vehicle was turned off. In addition, the left front turn signal was failed, but an indication of the failed turn signal was not always present. The headlamp assembly was taken in for replacement at a local GMC dealership promptly due to safety concerns of operating the vehicle on public roadways with this condition. The safety of others was at risk due to the strobing effect of the flickering lights and not being able to drive the vehicle during conditions where headlights are necessary. The flickering/strobing condition of the headlamp was highly distractive and puts other drivers are risk. In addition, due to the natural height of the vehicle the cast of the beam is closer to the rear view mirror height of the majority of vehicles. The problem was confirmed by a local GMC dealership and was identified as a faulty headlamp assembly. The vehicle was not inspected by any other party besides the dealer who performed the diagnosis and repair. There were no symptoms of warning messages prior to the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637894January 23, 2025
POWER TRAIN
The contact owns a 2020 GMC Sierra 1500. The contact stated that while accelerating from a stop light, the rear wheels seized. There were no warning lights illuminated. The vehicle was diagnosed by a mobile mechanic with transmission failure. The vehicle was towed to the residence. The dealer was informed of the failure. The contact was informed by the dealer that the repair was not covered under warranty due to the mileage. The vehicle had not been taken to the dealer. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 82,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637897January 23, 2025
ENGINE
I was driving my pickup to my farm. I was on a 4 lane divided highway, when i pulled into the left turning lane my pickup just randomly said "press Start/Stop button" so I stupidly did. The vehicle then shutoff or was already shutoff, I am not sure. There was no warning sign, dash lights, or weird engine noises. I would later learn the engine just blew up. The vehicle would not refire and I was forced to sit in the turning lane for 5 hours waiting for a tow truck. The highway was very busy and vehicles were buzzing past me constantly. Not a safe place to be at all! I could not get the vehicle into neutral or remove the parking brake. Multiple highway patrol officers stopped to help me and try to get the vehicle into neutral so we could pull it off the side of the highway to no avail. I crawled underneath the vehicle and disconnected the drive shaft, but then had no way of removing the parking brake. After many hours of waiting a tow truck showed up and my 1 year old pickup was drug onto it skidding the rear tires. The engine had around 12,000 miles. The vehicle went to a GM dealership for 4 weeks and got a new engine installed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637909January 23, 2025
ENGINE
The motor seized up, while driving, no warning lights, just died, had towed to the dealership and was told the motor had seized up, it has now been at the dealership for 45 days, I am being told that there is not a new motor available to replace mine
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637928January 23, 2025
ENGINE
bought vehicle in may 2022. had engine suddenly ‘lock up’ while driving on the highway to work in november 2022. towed and repaired at gym dealer through december 2022 for ‘spun bearing’. had ‘fuel sensor’ replaced in 10/23 when it failed the day before our planned fall break, towing our camper… then mid-december 2023 had camshaft part replacement when it ‘locked up’ again. got it back for 9 days when it once again ‘locked up’ (not driving this time…) and had engine completely replaced. on the first two occasions i was traveling at highway speed when all of a sudden- i lost power to the engine. thankfully i was on the shoulder side not towing anything either time!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637968January 23, 2025
ENGINE
Driving home on a rural two-lane road the engine started make a load banging noise on the drivers side, than it started to skip and not running on eight cylinders. it than lost oil pressure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637990January 23, 2025
ENGINE, FUEL/PROPULSION SYSTEM
On January 8th I was driving when my 2020 GMC Sierra 1500 Denali started to misfire as well as several warning lights blinking. I happen to be a couple miles from the dealership I purchased it at so I drove it straight there. A few days later I was notified it was the lifters that went bad and it would cost $5400 plus tax. This is disturbing since I have only had my truck for a little over 4 years with 68,000 miles on it. After researching the problem it appears that its a common issue and I notices a class action lawsuit for this reason. Since it's not recalled currently I'm stuck covering the invoice. Before the problem happened my truck was driving normal and no warning lights came on. This needs to be investigated so the consumer isn't stuck paying for something that is an obvious GM issue .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638000January 23, 2025
ENGINE
Engine failure- sent in old engine as a core piston broke off the rod causing the engine to seize replacing with reman engine from GM
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638037January 23, 2025
ENGINE, POWER TRAIN
Motor seized at 52,000 miles.... replaced motor... at 72K miles, lifters and rods had to be replaced on the 2nd motor. Transmission also failure at 72K, being replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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