GMC Sierra Complaints (2017)

481 consumer complaints on file.

#11655335April 17, 2025
ENGINE
Vehicle went into limp mode. 36 check engine codes popped up all related to cam shaft and lifter issues. Vehicle was taken to a shop and it has been determined that the passenger side lifters and rollers have sized due to the active fuel management system. This is the L86 GM 6.2 liter motor, that has developed the same issues that the L87 motor is being investigated for. There where no tail tail signs or check engine lights that were on prior the the lifter failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11654106April 11, 2025
ENGINE
first we had coil issues then it turned out to be the lifters now we are being told we need a new 6.2l v8 engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653993April 10, 2025
POWER TRAIN
Original issue started at about 60K miles regarding hard shifts and clunking with acceleration with my 2017 Sierra 6 speed transmission. I had it inspected by the dealer when I purchased it, told it was normal for this model. Had it inspected by independent shops, told that this is a known issue, but not fixable without a new transmission. At 90K miles, began experiencing a whining sound while idling. Told it is in the torque converter/transmission housing but I could not afford the thousands of dollars for replacement/inspection. I had the transmission fluid serviced and changed as recommended with the dextran ATF that GM recommends in the manual both at 60K miles, and again at 100K miles as recommended. I also drive the vehicle reasonably, yet still at 130K miles had the transmission and converter fail. With no warning, no check engine lights or vehicle codes. Even after I lost 5th and 6th gear, there were no warnings or alert in my truck and despite the transmission giving out while on the highway. I feel this is a huge safety concern with both GM torque converter and transmission issues being known, as well as my vehicle not giving any warnings before, during, or after my transmission failing. I have had the warning lights checked as well, I’m told they are fully functioning when tested, so for some reason there seems to be an inherent issue with the truck’s warning system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653595April 9, 2025
ELECTRICAL SYSTEM
Rear defroster failure. The rear defroster was turned on causing smoke to appear from the power sliding rear window, then the rear window shattered causing glass to fly into the backseat and truck bed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653442April 8, 2025
SERVICE BRAKES
I was slowing down in a parking lot to park. I applied the brake and the pedal was very stiff and the vehicle wound not stop. I finally stood on the pedal and it acted as though the antilock activated and started shuttering. It finally stopped without damage. A warning of service brake assist displayed on the dash. This began to happen about 3 months ago intermittently, but now is a more frequent action. I have not taken it to the dealer and thought of replacing the brake vacuum pump but don't know what to do. Any assistance you can provide will be greatly appreciated. Thank you and have a great day! [XXX] 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
#11652046April 1, 2025
ENGINE
The contact owns a 2017 GMC Sierra 1500. The contact stated that on four separate occasions while driving at highway speeds, the vehicle shut off with the check engine warning light illuminated. The contact stated that after each failure, the vehicle was towed to a dealer and the contact was informed each time that the failure was related to the active fuel management system. The manufacturer was notified of the failure after the first failure and the contact was informed that the repair would be covered under warranty. The contact stated that each time that the vehicle was towed to a dealer, the lifters and pushrods were replaced under warranty; however, the failure returned almost a month after each repair. After the most recent failure, the dealer pushed the manufacturer to replace the engine. The vehicle was repaired; however, the contact expressed a fear of driving the vehicle due to the repeated failures. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651889March 31, 2025
POWER TRAIN
The lifters failed on one side and the dealer replaced only that side under warranty. I paid over 64k for this veh and I am scared the other side will fail while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646967March 7, 2025
UNKNOWN OR OTHER
On [xxx]\ while travelling from Georgia to Florida, we fueled up at the [xxx] exit. As we left and started up the on ramp, the transmission in the truck failed. We were able to make it to a campground nearby and we called a local transmission repair shop. Not thinking anyone would answer, someone did and told us to bring the truck in the next day. To make a long story short, we did some research on the transmission in the truck and found there were a few class action lawsuits on this particular transmission. In fact, the transmission repair shop told us he has had to work on quite a few of vehicles with this particular transmission. I find this quite disturbing since no recalls have been issued on this transmission. The truck only had 135,000 miles on it. 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
#11644908February 25, 2025
ELECTRICAL SYSTEM
Approximately 3 miles into my trip i smelled something burning, thought it was a tractor trailer in front of me. Then my cab filled with smoke, I pulled over on the side of the road and examined the truck. The rear sliding window on the passenger side was cherry red and smoldering. I shut off the rear defrost, the cherry went out then the window shattered. No warning or beeps. My passenger and my safety were at risk to smoke inhalation, the possibility of a wreck, or burning. Gm claims there is no recall on this. But Canada has 159k recalls on this. Vehicle has 120444 miles on it. Temperature was 45 degrees out today at time of incident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644296February 22, 2025
SERVICE BRAKES
Brakes at low speed do not work well, causing extended braking distance. Looks to be a previous vacuum brake pump issue, but is no recall on it now.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641937February 11, 2025
POWER TRAIN
I see you are investigating GM on their 2019 to newer vehicles with the v-8 motors over the active fuel management stuff causing motors to blow, I’ve got a 2017 gmc with 5.3 with 30,000 miles and have issues with it over that mess. Just wondering why vehicles back to 2015 aren’t included in it that have that active fuel management stuff that are having problems? Thanks
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641247February 7, 2025
SERVICE BRAKES
The vehicle has no power assist when at low RPMs and is a hazard that may cause an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641029February 6, 2025
ENGINE
#6 cylinder AFM lifter failure. Inspected by a technician.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640339February 3, 2025
POWER TRAIN
Transmission went out as I was pulling into traffic, no warning lights on dash and no issues until this incident and had it towed to the dealership where I was told it would be $6600 to replace the transmission and that it was completely in operable. My truck is a 2017 with 53816 actual miles. Called gm company and they will not help with repairs at all.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639784January 30, 2025
ENGINE, POWER TRAIN
Diving my 2017 GMC SIERRA 1500 down the road and all of a sudden it had a big bang in motor,luckily only going 35 miles an hour. Had a slight tick in engine which I had gotten after most recent service visit, and had scheduled to take back to dealer. When I had checked it with a scanner, it only showed a P0700/P0711 code which was for transmission, otherwise no other lights or codes until that day when check engine light came on. Immediately stopped driving and pulled in parking lot and had car towed to dealer that day, [XXX]. They had called me back on [XXX], and said that they had to go further into engine for diagnosis, for extra charges. They called back next day and said that there was a camshaft failure that led to bent rod and metal in engine. Only fix was to replace engine. I then went and talked to them about cost and cause of failure, which is what I previously have stated. I then put in a call to GMC CUSTOMER CARE about the issue, and what they could do to help with issue, because no engine should fail with that few miles on it. Stated also that I had bought vehicle used with factory warranty still on it , and had all service since done at a GMC DEALERSHIP, and that they had all my records. And also, that the previous owner more than likely had all service done at a GMC dealership since it was all under warranty at the time. My service request with them is number [XXX]. My basis is on TSB Bulletin No: 20-NA-142 and Bulletin No: 15-06-01-002M . Which shows that GMC Corporation was aware of issues. At moment I am awaiting response from GMC. 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
#11638894January 27, 2025
POWER TRAIN
I have been experiencing trasmission problems. The vehicle jerks, shutters and makes numerous thumping sounds during acceleration as well as at certain constant speeds. It frequently make a lound clunking sound when first put in drive and beginning to move. On January 16, 2025, I took the truck to Rubideaux GMC, 351 W Dalton Ave, Hayden ID 83835, for inspection. I was told that the torque converter "was shot" and that the transmission fluid was scorched and there metal shavings in the transmission filter. The service manager informed me that I needed a new transmission at a cost of $7,000. the dealer told me that they will have to find a remanufactured replacement which by their description are in short supply. I went to an independent shop in the area and was quoted a similar price. The employee also advised me of a class action law suite that was in process for 2016-2020 GM trucks and SUV's and passenger cars equipped with the model 8L transmission with the same problem. Several suits are under way including, [XXX] et al v GM, I find this situation especially concerning given the very gentle treatment Ive given this vehicle since I purchased it new. The truck only has 63,000 miles on it and I have never towed anything with this vehicle nor carried any load of more than a couple oh hundred pounds in the bed of the truck. What component failed? Transmission. The transmission is still in the truck pending available replacement. How was your safety put at risk? The transmission could fail while driving causing a lack of vehicle control. Has the problem been reproduced by a dealer? Yes it was confirmed by the dealership listed above. Has vehicle been inspected by the manufacturer, police, or insurance? It has been inspected by a licensed GMC dealer. Where there any warning lamps, messages or other symptons.....? No 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
#11635282January 10, 2025
UNKNOWN OR OTHER
On 12/5/24 took the truck to the dealership where we bought it with a complaint about the transmission. They took for a test drive could not find anything wrong with it, recommended we have the transmission flushed and filter replaced. They could not do the service so we got it into our local Chevrolet Dealership who did the work for us on 12/6/24. On [XXX] as we were departing a gas station in Tifton, GA, the transmission would not shift out of first gear and the temperature rose up to 234 degrees. Limped the vehicle to a campground, called a transmission shop who told us to bring in the truck at 7:30 am o 1/2/25. They were able to replace the transmission on 1/3. We had to drive it 500 miles before we could continue on our journey to Florida. Trying to accelerate on the Interstate and not being able to significantly put us at risk of a crash. Once the temp rose on the transmission the check engine light also came on. 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
#11633623January 2, 2025
ENGINE
this vehicle is garage kept and meticulous maintained, has 136,000 miles, original owner, brought to dealer for an oil leak, they said exhaust are frozen and won't come out after heating etc. they have to replace exhaust manifolds! Bolts should not seize is the head of a garage kept vehicle that's heated! Being a mechanic many years ago I have never seen this happen! this is the first year for the new engine, On a internet search I found it's not uncommon, and the bill is going to cost me over $8000 !. Thank you, [XXX] 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
#11633347December 31, 2024
POWER TRAIN
The contact owns a 2017 GMC Sierra 1500. While the contact's husband was driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the RPM increased, and the drive signal flashed on and off. The vehicle was driven to the shoulder of the roadway. The vehicle was taken to an independent mechanic where it was diagnosed with transmission control module (TCM) failure. The contact was informed that the transmission control module needed to be replaced. The vehicle was not repaired. The vehicle was towed to the residence. The contact requested a second opinion from another independent mechanic, and it was confirmed as a transmission control module (TCM) failure. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 137,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632863December 28, 2024
POWER TRAIN
Shifting 1st to 2nd and 2nd to 1st is very hard and jolting. It hesitates and doesn't go immediately which could cause an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Sierra