GMC Sierra Complaints

15,732 consumer complaints on file.

#11702330December 1, 2025
FUEL SYSTEM, DIESEL
The contact owns a 2015 GMC Sierra 2500 Denali. The contact stated that while driving at 65 MPH, the vehicle lost motive power with the “Engine Power Failure” warning light illuminated. The vehicle was towed to the residence. The vehicle was later towed to an independent mechanic, where it was diagnosed and determined that the fuel system had failed and there were metal shavings in the fuel system. The contact was informed that the fuel system needed to be replaced. The vehicle was not repaired. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 160,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702341December 1, 2025
ENGINE, POWER TRAIN
Ticking noise coming from engine slight metallic noise as well. RPMs drop and when they drop, you can feel power loss constant hunting in the RPMs. Also a weird vibration, not all the time in the front end somewhere.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702353December 1, 2025
ENGINE
On 29 November 2025 at approximately 1700hrs, I was driving my Blue 2024 GMC Sierra 1500 AT4X outside of Pampa, TX. As I was driving to my hunting location, my truck turned itself off and placed itself in neutral. I was driving about 30 mph down a single farm road with another vehicle approaching me from the front. I was unable to pull to the side due to farmland. I was able to flash my lights to get the other vehicle to slow down before having an incident. During this time, I had to let the truck slow down to a stop. My vehicle was already inspected for the engine recall and I was informed I had nothing to worry about. That everything was good. The truck is at Greg Lair in Canyon, TX. It did put me and my passenger as risk. I did not receive any warning before my truck turned off. The dealer confirmed today that the engine had seized. The engine was inspected during the summer before this issue. I had not warning when this happened. Was just driving and lost power. Looked down at the display and it stated to restart engine. I noticed my truck was in neutral when it came to a stop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701995November 29, 2025
ENGINE
“I own a 2025 GMC Sierra with 30,000 miles. The oil cooler failed and caused loss of oil pressure and potential internal engine damage. The dealership acknowledges the failure but refuses to escalate the case or perform a proper inspection. I am being instructed to continue driving the truck even though it may suffer catastrophic failure while driving. This is a safety hazard.”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701927November 28, 2025
POWER TRAIN
Intermittent shudder at 25-55 mph under light throttle (rumble-strip feel); 5-6 dealer attempts failed due to non-duplication; GMC corporate (case # 82769068] refused escalation. Safety risk: Distracts from road, potential loss of control.TSB 22-NA-182 is a known issue and dealer says they can’t repair without duplication.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701928November 28, 2025
ENGINE
The engine is knocking and running rough. I took it to Christian Brothers Automotive in Newnan Ga and the advised engine replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701790November 27, 2025
ENGINE
The recall you are showing was completed 300 miles ago. There were no outstanding recalls on my vehicle on November 23, 2025. On this day I was driving home, at night and I heard a loud flapping sound coming from the front of my vehicle. I pulled over and checked the front and wheel wells, nothing was stuck. I got back in and started driving the flapping sound was coming as I pressed the gas, when coasting with no gas, there was no flapping sound. I managed to make it home and GM towed my truck the next day. The shop has informed me that the engine is gone. Even though I did the recall 300 miles ago, it was directly what they were looking for in the recall and did not find it. This clearly put me in danger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701819November 27, 2025
POWER TRAIN
The transmission is locking up, to the point it stoped pulling, it has been to several dealerships, and they can’t find any problems, put another transmission in the truck and it’s doing the same thing, the dealer ship told us there’s nothing they can do for us!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701718November 26, 2025
UNKNOWN OR OTHER
The integrated wirless phone charger when charging my phone always the phone to get very hot and puts my phone into overheating protcol. The safety concern is that this charger could overheat my phones battery and cause a fire with in the cab of the vehicle. This could cause an imminent threat to the safety of all persons in the vehicle. The issue was reproduced to the dealer that does my regular service. The component has not been inspected by the manufacturer. There is no warning signs produced by the installed device.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701448November 25, 2025
ENGINE, UNKNOWN OR OTHER
I purchased a 2021 GMC Sierra 1500 Denali (VIN: [XXX] ) from J.C. Lewis Ford in Pooler, Georgia. The dealership did not disclose an active federal safety recall (NHTSA Campaign Number: 24V-xxx / GM XXX) related to engine connecting rod and crankshaft defects that can result in sudden engine failure and loss of propulsion. The Blue Certified delivery document they had me sign includes a section requiring disclosure of any open recalls, but they left the recall section blank and checked that all recalls were explained to me. No disclosure of any recall occurred during the sale. The vehicle developed engine problems within days and is currently in GMC service. The nondisclosure put me at risk of driving a vehicle with a known safety defect. I am reporting this as a dealer nondisclosure of a federal safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701463November 25, 2025
SUSPENSION, ELECTRONIC STABILITY CONTROL (ESC)
The contact owns a 2026 GMC Sierra EV. The contact received notification of NHTSA Campaign Number: 25V594000 (Electronic Stability Control (ESC); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving over uneven pavement, there was an abnormal bumping sound coming from the front passenger's side suspension. Additionally, the contact stated while driving at various speeds, the contact noticed an abnormal rattling sound coming from nearby the pillars surrounding the infotainment system. There was no warning light illuminated. The dealer was contacted. The vehicle was taken to the dealer, where the contact was informed that the recall repair would take 30 minutes; however, the vehicle had been at the dealer for 15 days, and the recall repair had not yet been performed. The manufacturer was informed of the failure. The failure mileage was approximately 4,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701487November 25, 2025
ENGINE AND ENGINE COOLING, SERVICE BRAKES, HYDRAULIC
The contact owns a 2020 GMC Sierra 1500. The contact stated while driving 45-50 MPH, the check engine warning light and the brake warning light illuminated. Additionally, the contact heard an abnormal sound coming from the engine, and the vehicle decelerated. The vehicle was taken to the dealer, where it was diagnosed and determined that all the engine lifters and the camshaft needed to be replaced. The vehicle was repaired. The contact related the failure to NHTSA Action Number: EA25007 (Engine and Engine Cooling). The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The manufacturer offered to partially cover the cost of the repair. The failure mileage was 107,787.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701565November 25, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 62 MPH, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump module sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 82,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701589November 25, 2025
POWER TRAIN, ENGINE
-lifter failure on 6.2 v8 engine, causing damage to camshaft -lost significant propulsion while driving on the highway, nearly avoided being rear-ended by another vehicle due to loss of vehicle propulsion -dealer had to to replace lifter bank and camshaft -no issues, once lifter failed dash lights all lit up
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701143November 24, 2025
ELECTRICAL SYSTEM, VISIBILITY/WIPER, STRUCTURE:BODY
The rear defroster massively overheated. It started heavily smoking and eventually exploded the rear windows. Only warning sign was the smoke which we noticed quickly because the windows were up. Had the windows been down we might not have noticed before a fire started. I'm taking it to a dealership now. This module also triggers on from a remote start. Extremely dangerous!!!
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11701180November 24, 2025
LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH, ELECTRICAL SYSTEM
The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at various speeds, the tailgate opened unintendedly. The contact stated that the failure occurred while the vehicle was idling or while parked. The vehicle was taken to the dealer, where it was diagnosed, and the contact was informed that the failure was caused by a corroded wire. The dealer determined that the wire and the tailgate switch needed to be replaced. The dealer confirmed that the vehicle was not included in a recall or covered under warranty. The vehicle was not repaired but was scheduled for repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701194November 24, 2025
ELECTRICAL SYSTEM, VISIBILITY
The contact owns a 2016 GMC Sierra 1500. The contact stated that her husband remote started the vehicle. The contact stated that when the vehicle was started, the defrosters automatically activated. The vehicle warmed up for approximately 2 to 3 minutes. The contact stated that while leaving the driveway, her husband stopped the vehicle to assist with moving a lawn mower. Upon returning to the vehicle and looking through the glass her husband observed that there was smoke coming from the rear glass. The contact stated that her husband unlocked the rear doors and released the folding rear seat and saw that the defroster unit was on fire and smoking. The contact stated that her husband turned the vehicle off and the flames were self-extinguished; however, approximately 45-seconds later the driver’s side rear panel window shattered. The vehicle was not taken to a local dealer or independent mechanic to be diagnosed or repaired. The contact researched online and related the failure to Customer Satisfaction Program Number: N192265660 - Rear Window Defroster Thermal Events (Electrical System, Visibility). The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 89,000.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11701222November 24, 2025
ENGINE
The CAM Sensor Failed and the reluctor ring was chipped. They could not determine without spending hours taking a part the engine if it was a piece of metal from the current recall that chipped off and broke the reluctor ring. No problems until immediate failure and had to had the car towed to the shop to identify issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701251November 24, 2025
ENGINE
The contact's grandson owns a 2021 GMC Sierra 1500. The contact stated that after the vehicle was purchased from a private seller and driven 258 miles, while his grandson was merging off the exit ramp, the engine seized. The low oil pressure warning light was illuminated. The contact stated that the check engine warning light was illuminated prior to the failure. The vehicle was towed to the contact's residence. The contact scanned the vehicle and retrieved DTCs: P0011, P0016, P006DD, and P0521, stored DTCs: P06DD P0011, and permanent DTCs: P0011 and P0016. The engine was replaced by the contact. The local dealer was contacted for parts. No further information was available. The manufacturer was not contacted. The failure mileage was approximately 100,148.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701306November 24, 2025
ENGINE
Purchased vehicle in July 2025. Started having the engine failure issues described in recall "L87 Engine Loss of Propulsion (Related field action: See Special Coverage N252494003)". GM says that the recall work was completed in May of 2025, however, the same exact issue as described in the recall exists. Engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. We believe the recall fix was not performed properly as vehicle has same issue. Dealership has not helped us and GM referred us to you.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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