GMC Sierra Complaints (2017)

481 consumer complaints on file.

#11505276February 2, 2023
SERVICE BRAKES, ELECTRICAL SYSTEM
SERVICE TRAILER BRAKING SYSTEM. Faulty control in the dash. Known issue per mechanic but no recall issued. Safety issue as trailer brake may not function properly when towing as a result
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504235January 28, 2023
STEERING, STRUCTURE:BODY, SERVICE BRAKES
Back up sensors not working. Truck also not having a vin number even though it was bought from the the Chevy dealership. Also was told the electrical system is not working properly
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11503094January 23, 2023
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was pulling in to a parking spot and pressed the brakes and the truck didn’t stop and I hit the sign. When I looked at the dash there was a “service brake assist “ warning on.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11503281January 23, 2023
POWER TRAIN
Transmission needed to be replace after only 73,277 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501606January 13, 2023
ENGINE
Over some time we had noticed a chirping / pulsating sound when starting the engine after it was fully cooled down. Cold start. This sound over the last few months has been increasingly getting worse. We asked our dealer to check things over and determine what could be the issue on a regular service visit for oil change. They could not find a reason but said a service visit with a full line mechanic would be needed to diagnose the issue. We did our own closer look and diagnosing just where the sound and smell of oil fumes or gases were coming from and found the Left side (drivers) rear / back cylinder exhaust manifold bolts to be broken off and gone. There are a total of 5 studs and the rear two had failed and gave away to now allow the exhaust manifold to leak exhaust fumes that are obvious in the cab at startup. This is a pretty major failure and safety problem we feel that GM needs to take action on and correct.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501006January 10, 2023
SERVICE BRAKES
I am experiencing hard brake pedal and/or brake fade when attempting to apply the brakes. Their is a recall for this problem on other models, however my truck model year is not included for some reason. This has occurred on multiple occasions and has nearly caused an accident on those occasions. My truck also began to roll out of a parking spot and I had extremely hard brake pressure but no response from the brakes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500876January 9, 2023
SERVICE BRAKES
My 2017 GMC Sierra is experiencing similar issues with excessive force required, vibration in brake pedal at low speeds, and delays in stopping as found on 2018 and up trucks and SUVs. I notified the dealership about a year ago about the issue and it potentially being linked to the recall and they said it wasn't and they would have to charge me to inspect and repair. The issue can obviously lead to an accident if the brakes continue to worsen and fail. Also abrupt stopping at low speeds doesn't work efficiently putting anyone who steps out in front of my vehicle or stops abruptly in front of me at risk. A couple of times there was a diagnostics alert sent to my email stating an "issue with the antilock braking system was detected". There are already accidents reported with 2018 and up vehicles because of this issue. I feel the recall for the 2018 and up vehicles needs to be extended to 2017 vehicles to prevent accidents.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500553January 6, 2023
ELECTRICAL SYSTEM
Driving down the road. Thankfully it was late at night and the roads were empty. But the truck shut down and brakes locked up and steering wheel locked. Once I was at a full stop. I turned the truck off and back on and was able to drive home. But I called Gmc regarding this issue and brought they couldn’t find anything wrong
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500275January 5, 2023
SERVICE BRAKES
When pressing the brakes a few time at a low speed Iose brake power. There is already a recall out for this model but not my vin. This is my recall issue Brake Assist Decreased Due to Vacuum Loss
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11496216December 6, 2022
SERVICE BRAKES, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
I purchased my vehicle in January 2022. On 11/18/22 I captured a photo across my dash stating that the trailer brake system needed to be serviced (photo attached) . This was the second time this message appeared within days. The vehicle continued to beep and flash for a long period of time clearing out my dash screen making it UNSAFE TO DRIVE. The beeping noise startled me, almost causing an accident on the freeway. I did not know what the warning meant as I wasn't towing a trailer. I wasn't towing anything and could not turn off the beeping sound or the flashing screen, in spite of hitting the dismiss button. I don't know why the message continued to go on and assuming there is an electrical shortage somewhere with the wiring. This needs to be recalled and fixed as it is a manufacturer issue. I do not have any aftermarket parts installed in this vehicle. This same alert message appeared again yesterday 12/5/22 as I was driving back from the airport. It continued for almost 2 hours while on the freeway and again I was not pulling or towing anything. I pulled over, checked my tailgate, turned off the vehicle and turned it back on and the message continued until I got home. It is very alarming and annoying and scared me. This is a big safety hazard and almost caused an accident again as the alert is very loud and flashes across, clearing out your screen, causing you to take your eyes off traffic looking ahead. This time, I was traveling in heavy traffic. Please investigate this further. Thank you
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11495266November 29, 2022
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The service message appeared on the display after backing up "SERVICE BRAKE ASSIST" I searched this issue and found over 65 complaints for this vehicle year/make /model. I am at work and fear driving home as this issue has resulted in brake failure on some of the complaints noted. I have not contacted anyone yet, I wanted a recall notice as this is a safety issue and we cannot afford any costly vehicle repairs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11494475November 21, 2022
ELECTRICAL SYSTEM, STEERING
The trucks power source starts failing when going at about 15 mph and turning a bit, it happens when coming to a stop or when you’re about to park. The steering wheel starts getting super stiff and all the power buttons and lights start going dim and the truck shuts off. The truck can turn on right after but at times it takes about 15 minutes for the system to reboot and then the truck will finally turn. When this happens you can’t turn on hazard light making it a dangerous situation at night! I’ve talked to other gmc owner with the Denali models and they have stated as well that they’ve had the same issue occur at least once to them, this truck currently does it very often and even more in the cold weather! There has been a recall on earlier an earlier year of the same model truck but just not this one making it tedious to try to get it fixed. I’ve took it to the mechanic and they’ve changed the ground wires, it made the problem just happen less frequently, but it still occurs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11494299November 20, 2022
POWER TRAIN
Transmission engine light on, code P0700, P182E. Truck went into limp mode, would recognize what gear its in. Had to shut down vehicle for 10 minutes, restarted then it aloud me to drive.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11494173November 18, 2022
STEERING, SERVICE BRAKES, AIR BAGS
I was in an accident on October 20th 2022 while driving home. U had just reached the top of a sharp crest on a two way road. As I started to straighten out the wheels coming out of the turn I noticed my direction was still as if I was turning the wheel. I tried to brake and pressed the brake but it went to the floor and the truck kept going. I collided with the other vehicle and it was a miracle neither of us were seriously injured or killed. We had problem with the steering box about 2 years ago and had to have it towed to the dealership. The other vehicle was a Chevy 2500 with a custom steel flat bed & it slowed me down and I finally came to a stop with the front tires off the road. Neither vehicle alerted onstar & airbags did not deploy. His vehicle miraculously had minimal damage to the cab the majority of the damage was the metal gear box located under the bed in between the cab & tires. It was super scary & left both vehicles disabled.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11493631November 15, 2022
POWER TRAIN
The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving approximately 40 MPH, a grinding noise was present coming from the engine compartment. The contact stated that the vehicle inadvertently decelerated and stalled without warning. The vehicle was towed to the residence and examined by a mechanic, who determined that the transmission had failed. The cause of the transmission failure was not yet determined, and the vehicle was not yet repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage 100,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493644November 15, 2022
POWER TRAIN
The contact's son owns a 2017 GMC Sierra 1500. The contact stated that while her son was driving 30-35 MPH, he heard an abnormal sound. There was no warning light illuminated. The contact's son veered to the side of the road and attentively listened for the sound. The contact's son then inspected the transmission reservoir and noticed that the transmission fluid had leaked out. The contact’s relative brought transmission fluid which was added to the transmission reservoir. The contact's son continued driving; however, the vehicle became undrivable later that day. There was no further information provided. The vehicle was towed to the son’s residence. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493671November 15, 2022
SERVICE BRAKES, HYDRAULIC
The contact owns a 2017 GMC Sierra. The contact stated while driving and coming to a stop, the vehicle lost braking functionality. The contact had to desperately depress the brake pedal for the vehicle to come to a complete stop. The vehicle was not diagnosed. The manufacturer was contacted and stated that the vehicle was previously serviced under NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) and offered no additional assistance. The contact was referred to the NHTSA Hotline to file a complaint. The failure mileage was 46,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493186November 11, 2022
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
As I am driving the truck I notice that as the accelerator is pressed the truck does not respond as it should. I have taken this to a service repair shop and they have stated it is a ongoing issue with these vehicles. So I have taken it upon myself to look online and sure enough OTHERS have also states the same things.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11492937November 9, 2022
ELECTRICAL SYSTEM, EXTERIOR LIGHTING, STEERING
While making a quick left hand turn at low speed, steering wheel suddenly locked, all lights and electrical went out and engine died. This left me stuck in a busy intersection with no lights. I was able to restart engine after a minute or so. Error message appeared "roll driver side window up, etc." Needless to say, no longer have confidence driving my truck not knowing when this situation may re-occur.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11491029October 26, 2022
POWER TRAIN
Truck has 67,000 miles and has been in the dealer 3 times for transmission issues. First was the shutter. Then harsh jerking downshifts. They flushed transmission and filled with new fluid under warranty and after 1,000 miles light on again for transmission fluid temperature sensor. And now they want $800 to replace this issue. There was a recall on the 16 model for the same issue with the wiring. About to cut loss and file lemon law. Had the truck for less then 2 years and put 15,000 miles on it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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