GMC Sierra Complaints

15,732 consumer complaints on file.

#11443624December 13, 2021
SERVICE BRAKES, FUEL/PROPULSION SYSTEM
Truck has just over 150k miles. Maintained well and garaged when possible. 1) Noticed a fuel smell from the driver side door area and after parking for a long weekend, a small pool of liquid formed in front of the driver side rear wheel. It was fuel dripping from the line leaving the evap canister that had rusted through. Resulted in a $600 repair to replace all rusted fuel lines so as to eliminate the risk of fire. 2) When approaching an intersection to make a left turn and slowing down the brake pedal pushes to the floor with no stopping power at all. Used the engine/trans in manual mode to slow the truck down and avoid an accident. Driver side brake lines are blown out in multiple spots near the ABS module due to corrosion. Potential cost based on research is in the $1000 ballpark. This level of rust on critical vehicle components is irresponsible and potentially deadly. GM needs to take this more seriously and realize that their cost-cutting measures are putting people and their families in grave danger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443490December 11, 2021
UNKNOWN OR OTHER
I auto started my truck. We jumped in and I put the key in to start and turned down the heater and pushed the rear defroster off and the passenger side rear window blows up like a shot gun blast. It shaders into a million pieces. Our 2 year old in a car seat right in front of it rear facing. If I was driving with the amount of noise it produced I could of crashed. I see there is a bandage recall but not for the hundred of thousand of the 2014/2020 for back windows just blow out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443200December 9, 2021
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
My back window just made a loud pop sound. I have a back window that had an electic sliding widow. Which means the back window is in 3 sections (driver side, middle sliding window, and passenger side). The driver side of the back window was completely shattered. It's hard to see from the outside but from the inside it is spider cracked everywhere. I believe that I had my rear defrost on at the same time. Nothing hit my window to cause this.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443233December 9, 2021
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS, LANE DEPARTURE: ASSIST
Driver Assist-Lane Keeping Assist-Forward Collision Warning-Automatic Emergency Breaking Life Threatening When System Fails and is Intermittent . Vehicle has been said to be dangerous to drive by GM Tech/Can cause life threatening conditions. Fault has been confirmed by Dealership. WARNING LAMP> "SERVICE DRIVER ASSIST SYSTEM" Friday 3 December 2021 at approximately 21340 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443038December 8, 2021
FUEL/PROPULSION SYSTEM
While exiting off ramp of the interstate my truck just completely shut down. After several towing bills to different mechanics to verify the problem, it was the cp4 pump system ! Over $13000 in repairs , towing , and rental fees
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443047December 8, 2021
UNKNOWN OR OTHER
Diesel exhaust fluid systems limited to slower speeds causing traffic back up. Issue is these components are failing on these trucks. Mine failed with in 3 yrs of manufacture date.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443108December 8, 2021
ENGINE
On 11/19/2021. While on the express way our truck started sounding really bad. We drove it slower to a gm dealer in Highland MI. They said we had a misfire. And there was nothing they could do at this time. We drove a little further and it got worse. We had to stop at a rest area. After dark and in the freezing weather. We had it towed to a dealer in Frankenmuth MI. Our truck has 11,800 miles . It has a diagnostics report of Valve lifter defects left bank. Starter had to be replaced. And now gm wants to only fix to affected bank . But on the unsold trucks they will repair both banks as stated in service bulletin N212353840 . If we have one bad lifter they should all be replaced as for this not to happen again. As of 12/08 2021 it is still in the shop [XXX] Thank you 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
#11443002December 7, 2021
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was driving my truck when the Brake assist light came on. When applied the brakes they started pulsing and grabbing. I took it in for service and was told that the Electronic Brake Control Module needed to be replaced and the brake fluid flushed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443013December 7, 2021
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
After driving vehicle for about 40 mins from last parked location, i slowed to take a left hand turn, engaged blinker, accelerated while proceeding to turn left. the steering wheel jerked to the Right and sounded an audible "ding" and door locks engaged. upon driving an additional estimated 100 feet, the entire system shut down. (i happened to be turning into a parking lot where there was a car parts store in town) no power at all, nothing on the display panel, all doors remained locked and i was locked inside the vehicle. i placed the gear shift into Park and tried unlocking the doors, which would not unlock due to no power. taking the key out of the ignition and reinserting it and tried to start did nothing. after a few more failed attempts, the interior lights and display screen flashed (glitchy blinking) and after a few more attempts, when the key was turned to the run position I finally had normal power. the doors finally unlocked. seemed as if the system rebooted itself and i had power and was able to start the vehicle. the dash panel showed a message to roll down the drivers side window, then showed a message to roll up the drivers side window. after i followed the prompts, everything returned to normal. i went into the parts store and had them hook up to a code scanner, which did not show any codes, the battery, alternator, and starter were also checked and were fine. i was able to drive home with no problem. I am afraid to drive my truck because i do not want this to happen when driving at a higher rate of speed. I was fortunate to be turning into a parking lot when the event happened. I am fearful of this happening again and causing an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442799December 6, 2021
AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE
The contact owns a 2007 GMC Sierra 1500. The contact stated that after the dealer serviced the front passenger’s side air bag inflator under recall, the passenger’s side air bag warning light failed to illuminate with a passenger seated in the passenger’s seat. The vehicle was taken to an independent mechanic and diagnosed with a code reader, which showed an incorrect installation of equipment code. The dealer was made aware of the failure and diagnosed the vehicle with Sensing Diagnostic Module (SDM) sensor failure. The dealer informed the contact that the Sensing Diagnostic Control Module needed to be reprogrammed or replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 176,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442823December 6, 2021
ENGINE
1997 GMC SIERRA. CONSUMER WRITES IN REGARDS TO ISSUES WITH THE ENGINE. THE CONSUMER STATED, ACCORDING TO THE OWNER'S MANUAL, THE VEHICLE SHOULD BE ABLE TO PULL 6,000LB LOAD. BUT, THE VEHICLE MISFIRED, LOST SPEED, AND STALLED WHILE PULLING LESS THAN 4,000LBS. THE FAILURE OCCURED AT SPEEDS OF 55-65MPH.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442892December 6, 2021
ENGINE
The contact owns a 2020 GMC Sierra 1500. The contact stated that shortly after refueling while driving under 15 MPH, the check engine and service emissions warning light illuminated. The contact stated that an unknown reset was performed related to TSB: 10173675 (Engine). The vehicle was not yet fully repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 46,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442943December 6, 2021
ENGINE
2021 GMC Sierra 1500 AT4 6.2L engine, Little over 15000 miles, Purchesed May 2021. Drivining down the interstate with out warning, engine starting making back fire sounding noise, with a noticeable loss of power, I requested On Star to do a vehicle diagnostics, no faults was reported, No check engine light, temp was normal, oil pressure normal. The noise was off and on at first and then remained constant. Fortunataly I was able to make it safely back to my residents. I parked the vehicle and did a scan code and it did not have any codes, I did a pending code scan and it had a P0300 code. I started the engine and the noise was louder at first and then got quiter after about 15 seconds of running the check enging light came on I shut the engine down and did another scan it gave me a P0302 code. I feel that the vehicle is unsafe to drive and could cause a accident if it locks up on the highway. I contacted GM and reported the issue, they said take it to a near by GM dealer, I told them that I felt the vehicle was unsafe to drive and they tried to contact me with road side assistance but I was unable to get anyone on the phone. I feel that GM is ingnoring a known issue and that this will result in accidents and possible loss of life.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442719December 5, 2021
ELECTRICAL SYSTEM
I had my rear defrost on and it started smoking on the rear drivers side window and smelled like something burning and I parked at a gas station a couple of minutes later. The rear window completely shattered. The glass stayed intact but my 6 year old son was sitting in the backseat and it scared him half to death. I looked up recalls and this is known issue with these vehicles sold in Canada. This just happened and it hasn't been looked at my anyone.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442617December 4, 2021
ELECTRICAL SYSTEM, STEERING, ENGINE
Truck will experience complete electrical failure while driving in motion at various speeds. Failure lasts between 5-10 seconds but causes severe difficulty as steering is affected. A web search reveals grounding issue as potential cause. Manufacturer has not notified me of this particular issue and or any recall effort and I know of no existing recall effort for this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442662December 4, 2021
SERVICE BRAKES
At low speed, parking in reverse, brakes began failing. Symptoms included a vibrating brake pedal, and a large change in the amount of pressure needed to depress the brake pedal (low pressure required). Pedal went to floor without stopping power. Symptoms match existing NHRTA campaign 20V603, but 2016 is not currently covered by the existing recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442514December 3, 2021
POWER TRAIN
Torque converter went out causing hesitations which led to the entire transmission needing replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442389December 2, 2021
POWER TRAIN, SERVICE BRAKES
Ok my issues is the same recall on many other 2017 gmc 2500HD but not my VIN. Recall number N172120230 (rear wheel hub but loose). In my situation I was driving at low speed went to stop and abs light came on from oil on my rotator, I also heard a knock from the rear wheel. I pulled over and looked under the truck to find my axel seal leaking fluid all over my tire and breaks. I looked into the Facebook form on this problem and found many people with the same issue. Had the truck towed to the dealer where the are refusing to repair and not coving under warranty for 1” bigger tires. My truck only has 39,000 miles and a axel seal should not be going out, and if so should be covered
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442341December 1, 2021
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
Prior to this incident I had lifter failure on my 2021GMC SierraAt 8464 miles, I was on my way to work and I heard a loud bang and I had to pullover off the highway, my dad had to come all the way out To get the vehicle because it had major engine damage and it was on a holiday so no one would come help me.The vehicle was in the shop for over a week getting these repairs done, upon receiving vehicle it had been a week and I received service four-wheel-drive messages on the dash.Trying to use four-wheel-drive after this was a no-go every time I push the button nothing would happen it would stay in two wheel drive.After this I made an appointment with the dealership for this issue to be fixed, as I was going to get readyTo leave again with the truck having no issues other than what I’ve stated when I went to go start the truck nothing happened at all every light lit up on the dash and part of me thinks it’s an electrical issue but the Other part of me thinks the motor is locked up. Also the lights would not shut off when I turn the vehicle off so I’ll have a dead battery in the morning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442070November 30, 2021
SERVICE BRAKES
Brakes lines failed under truck do to rusted out lines
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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