GMC Sierra Complaints

15,732 consumer complaints on file.

#11515701April 5, 2023
STEERING, ELECTRICAL SYSTEM, ENGINE
Truck loses power engine dies while driving after turning at slow speeds. Engine will restart after a few minutes like it never happened does not show any DTC codes or check engine lights. It is intermittent with no advance notice very dangerous to drive. Seems to be a common problem for all GM trucks and SUVS from 2014 - 2017
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515485April 4, 2023
ENGINE
I was operating my vehicle in northern Minnesota with a temperature well below freezing. Vehicle warning light came on that said "turn off vehicle" which I did. When I went to start it again it would not turn over. It appeared that a large amount of oil had expelled from the vehicle. It was very dangerous as I was in a very remote area with very poor cell service and extremely cold temperatures. I couldn't even run the vehicle to stay warm. The vehicle was towed to the nearest GMC dealership where they examined the vehicle and stated that the seal of the oil filter had blown off. They further stated that the oil filter which was installed by Valvoline was the wrong size. Valvoline tested the Champion oil filter and came back with findings that the filter was the correct size and noted no damage to the filter. Either there is an unknown problem with the GM engine or the Champion oil filter. Each corporation continues to point fingers at each others product.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515165April 3, 2023
POWER TRAIN
When the transmission is making changes, there is a shaking noise.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515265April 3, 2023
ELECTRICAL SYSTEM
The electrical system has intermittent issues with connection to the battery due to the location of the ground connection from the battery. The ground connection is screwed into the under carriage (near wheel well front passenger side) and left exposed to the elements. Grit and grime build-up over time caused an interference with the connection. The safety issue is the vehicle lost power without warning and while driving causing the vehicle inoperable, including no power steering. Other symptoms include stabiltrak and park assist errors displayed while A/C & radio resets during intermittent power connectivity. Cleaning the ground connection wires & screw solved the immediate issue. This video explains it all, including where the issue is located and how I was able to fix the issue to restore power: https://youtu.be/KrSJJUUo9FU
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515107April 3, 2023
POWER TRAIN
The contact owns a 2018 GMC Sierra 1500. The contact stated while accelerating from a traffic light, the vehicle started hesitating. The contact stated no warning light was illuminated. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 99,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515020April 2, 2023
VISIBILITY/WIPER
My back window leaks and gm has said that the warranty is over by years not miles it is not covered
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515021April 2, 2023
VISIBILITY/WIPER
My rear window leaks there is a bulletin on it Call GM says it is not responsible for the repair because it is over on the years but not the mileage it’s clear they know about the problem it’s in many pickups that gm manufacture here is the bulletin file:///var/mobile/Library/SMS/Attachments/97/07/3010617D-BBB0-4FB8-859B-4BA5E2BE3F3A/Ed%20blakeslees%20truck.png
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514729March 31, 2023
ELECTRICAL SYSTEM
The contact owns a 2015 GMC Sierra. The contact stated that while driving approximately 25 mph with the defroster activated when they began to smell something seeming to be overheating. The contact heard a sudden pop sound and later noticed that the rearview window on the side had fractured. The dealer was made aware of the failure and informed the contact that due to them already receiving a recall remedy for the failure they were unable to get the repair done again free of charge. The vehicle had been repaired for the glass to be repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514732March 31, 2023
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW
The contact owns a 2015 GMC Sierra 1500. The contact was informed by the dealer upon purchase of the vehicle that there were three recalls on the vehicle. One of the recalls was related to the rear defroster which the dealer informed him was repaired. The contact stated that upon start of the vehicle he smelled an abnormal odor coming from the vehicle. While driving 25 MPH, the contact heard a popping sound coming from the vehicle but thought nothing of it. The next day while driving the vehicle, the contact felt a rush of air entering the vehicle and upon inspection discovered that a baseball sized hole had formed on the rear windshield. The dealer was notified of the failure but offered no assistance. The manufacturer was also notified of the failure and referred him to a dealer for an inspection. The contact took the vehicle to an independent mechanic where the windshield was replaced. The vehicle had been repaired. The failure mileage was approximately 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514868March 31, 2023
ENGINE
Engine had catastrophic failure while driving down highway with no warning. No check engine light. Loud bang and loud metal on metal slapping with violent shaking of front end of truck. Towed to dealer. So far they say lifter failed, and push rod collapsed and drove through engine block. 40000miles, 2019 Sierra 1500 Denali with 6.2l V8.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514874March 31, 2023
ENGINE
Unknown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514529March 30, 2023
ENGINE
The engine failed. The 2022 GMC Denali had 12,000 miles on it. This was a brand new truck. We were driving home at night the engine began to make noise and then cut off in the middle of the road. We had to get the car towed. The truck was left on the side of the road on a very busy highway. The dealer confirmed the engine failed and found metal shavings in the engine. The dealer has recommended a new engine from the GMC Manufacturer. The manufacturer has not yet responded to the dealerships request. The engine light did come on prior to the engine shutting off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514416March 29, 2023
ENGINE
I purchased my 2022 GMC Sierra Denali Truck back in November from Ewing GMC in Plano, TX. I am a roofer, and my career depends on my vehicle. I live in Plano, TX, and was driving 80 mph back from Lubbock, TX around 12 PM Friday 3/24/23, on the highway when a notification appeared on my dash saying I needed to press the "start" button. The truck completely shut off, making it difficult for me to pull to the side of the road safely. Once I had stopped, I put the truck in "park" and it was completely unresponsive and would not re-start. I had to wait over 5 hours for OnStar to get a tow truck and get my truck. It was eventually towed to Frank Brown GMC in Lubbock around 6:30 PM that evening. I live in Plano, TX, and had to fly back the following morning. GMC in Lubbock was not able to look at the truck until late Monday afternoon 3/27/23. The service manager in Lubbock said the engine appears to be seized up internally and they have suggested a complete engine replacement from corporate. It is now Wednesday 3/29/23. I am still without a loaner truck, as Ewing GMC here in Plano will not provide me with a loaner since the truck is not in service at that location. It is not my responsibility to get the defective truck back to GMC Ewing in Plano, as the truck is still under full warranty. GMC corporate, Ewing GMC and Frank Brown GMC are not taking this situation with any urgency, and I am now responsible for paying for an $85,000 truck that does not run and GMC has not been cooperative in resolving the situation in a timely manner. I am at a loss as to what can be done and how I can proceed to get this resolved ASAP.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514442March 29, 2023
SERVICE BRAKES
The brake line in the middle of the car broke because it's rusty, and all brake fluid is out, vehicle not braking
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514469March 29, 2023
SERVICE BRAKES
Backing up no brake assist and very hard to stop, not all the time but once happened going down boat ramp...
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514521March 29, 2023
POWER TRAIN
The torque converter jerks the truck and causes vibration. This does jerk the vehicle unsafely at times of stop lights. As I know this was a lawsuit at one point with GMC itself. It does nothing but get worse with pulling and jumping the truck going down the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514243March 28, 2023
POWER TRAIN
My 2015 GMC Sierra SLT with 92K miles was in the shop (3/28/23) for a recall on the brake vacuum pump and they advised me that the oil cooling lines are leaking. They advised me of the potential safety hazard of fire and vehicle damage. There are no warning indications on the dash about this problem. I spoke to a local shop and they advised me to file a report as they have done 2 in the past week. I didn't get it fixed yet as I have a work truck that I drive and this doesn't get driven hardly ever.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514306March 28, 2023
SERVICE BRAKES
2017 GMC Sierra K1500 with 59,xxx miles. Recently noted braking issues with vehicle in parking lots or at slower speeds. The brakes are difficult to engage. I do not notice this issue when driving at higher speeds. On 3/27/23, I backed the vehicle out of my driveway and had a near miss collision as it was very difficult to engage the brakes and stop the vehicle. After the near miss, the brakes, calipers, and rotors were inspected and all were in good working condition. I contacted the dealership where the vehicle was purchased. The representative from the dealership informed me that this braking issue was addressed as a previous recall for N192268490 ZPSR (Product Safety Recall) on 5/24/21. On 5/24/21, I took the truck into the dealership for another issue and this recall was addressed at the same time. I was not having any issues with the brakes at that time. The representative informed me that the recall was closed on the truck, and they now charge $200/hr if I want to bring the vehicle in for service. The current braking issues appear directly related to the reported braking recall issue that was reportedly repaired on 5/24/21. The vehicle is not safe to drive and would appreciate assistance from the NHTSA to safely resolve the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513741March 25, 2023
POWER TRAIN
I have persistent transmission problems documented on multiple dealer visits where I purchased the vehicle. The first one was after 6000 miles. A large clunk sound and vibration occurred after shifting gears in the 30 mph range. The dealer told me this was a know issue related to the transmission manufacturer lubricant conflicting with the GMC transmission fluid. They did a flush and replace and for a time period it settled down. I have 56,000 miles now and the latest complaint I made was when nearing a stop at 5-10 mph the transmission did a massive clink. I had two others in the vehicle that observed this over 20 times. I immediately scheduled a service to look at this. After 4 hours they told me nothing is wrong. Since then the transmission has a light clunk shifting at low speed so I wonder if they lied and flushed the fluid. They said no metal was in the fluid. Online websites show many posts of owners hanging this issue. I was never shown a bulletin on any reported issues and would like to see every one related to the 8 speed transmission. My standard powertain warranty has expired after 5 years. I fear the value of this vehicle is impacted by so many complaint, no action by NTSB, and questionable practices by two GM dealers that serviced my vehicle. I would like to see a recall as this isn’t just my issue. I would like to see what investigation NTSB has done on this topic. I have printed service re odds for each I have complained about the transmission and now believe the dealer was aware of the issue and GM bulletins coached them how to tell me there is no issue. The last statement made was also odd, the service advisor told me that the clink is because the transmission sometimes goes from 3rd to 1st and skips second gear. I was charged to have them look for a problem and if this a known issue to both GM and the NTSB shame on you both.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513606March 24, 2023
FUEL/PROPULSION SYSTEM
The fuel in the tank is splashing around and makes bump sound when you come to a stop and is worse when the fuel take is full and goes away the lower the tank gets. GMC has a service bulletin out PIT5161J stating this is a normal condition. This is not normal, I have never had any vehicle I have owned have a fuel tank noise let alone have felt a bump that you can feel in the seat. There is obviously something manufactured wrong and needs to be addressed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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