GMC Sierra Complaints (2015)

916 consumer complaints on file.

#11518292April 21, 2023
POWER TRAIN
The contact owns a 2015 GMC Sierra 1500. The contact stated that while shifting from drive (D) to park(P), the contact heard a loud clunking sound. Additionally, while driving and downshifting the contact heard the loud clunking sound. The contact also stated that while driving at an undisclosed speed, the transmission slipped while shifting from 1st to 2nd gear, and the vehicle failed to immediately accelerate. The contact stated that the failure occurred more during the winter months. The vehicle was taken to the local dealer who reprogrammed the TCM however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515512April 5, 2023
SERVICE BRAKES
SERVICE TRAILER BRAKING SYSTEM NOTICE CONTINUES TO POP UP ON THE DASH WHILE DRIVING.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#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
#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
#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
#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
#11513349March 23, 2023
ELECTRICAL SYSTEM, SEAT BELTS
My truck lost all audio including radio, turn signals and seat belt warning chimes. I feel this is a major safety concern not having a seat belt warning as well as an open door alert. The dealership notified me there is not a recall on the 2015 model and I would be charged for any and all labor.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513191March 22, 2023
EXTERIOR LIGHTING
The stock headlights both low and high beams provide poor lighting at night. The headlights provide a poor beam pattern making it incredibly difficult to see more than 100 ft in front of you while driving down dark roads. And even more difficult in light storm conditions both rain and snow. The high beams aim too high when used and don't show enough of the road in front of you but rather the tops of tree's or other objects instead of the road. The low beams don't provide much light on the sides of the road as well and at times feel more like they're just fog lights with the amount of light that is put out. These incidents happen anywhere from low speeds up to highway speeds. I have noticed this issue since purchasing it used and have seen multiple similar complaints online.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512595March 19, 2023
SERVICE BRAKES
Brake pedal effort is increased, pedal gets hard and vehicle is hard to stop. Happens at slow speed. intermittently.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512551March 18, 2023
SERVICE BRAKES, BACK OVER PREVENTION: WARNINGS
Trailer brake system message keeps showing up on my dash and it’s not safely to drive
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11510803March 8, 2023
ELECTRICAL SYSTEM, VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
The contact owns a 2015 GMC Sierra. The contact stated that when doing the initial start, the rear of the vehicle began smoking and caught on fire. The contact turned off the vehicle and the fire settled however shortly after the rear window fractured. There were no injuries and no medical attention needed. There was no fire report. The contact had taken the vehicle to the dealer who stated that the window needed to be replaced and there was a Canadian recall (Manufacturer Number N192220470 ) for the rear windows defrost failing. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 152,000.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11510446March 6, 2023
SERVICE BRAKES
Press the pedal feels soft vehicle slightly slows then pedal pressures up and truck instantly stops pedal stays hard for a long time having same issue on 15 tahoe
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11509701March 1, 2023
SERVICE BRAKES, HYDRAULIC
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 10 MPH and coming to a stop, the brake pedal was depressed but hesitated to respond, causing 10-15 feet stopping distance delay. The contact stated that the failure reoccurred while driving downhill. The brake pedal was depressed down to the floorboard but failed to respond, almost causing the vehicle to crash into another vehicle. The contact pumped the brake pedal and the vehicle stopped; however, the failure reoccurred while driving at slow speeds and approaching the residence. The contact stated that her son test drove the vehicle at high speed and informed her that the brakes operated as needed. The contact became aware that the failure was occurring mainly while driving at slow speeds. The dealer was notified of the failure and informed the contact that she needed to pay a diagnostic test fee, but the contact declined. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 61,299.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11508076February 19, 2023
SEATS, SERVICE BRAKES, POWER TRAIN
I tried to buy a car at car dealershipin lafayette oregon ( Pouya Auto sales) gmc sierra 2015 black . on the date 02/09/2023 . They soldme this car with ABS ,cruscontrol, presusre tires ligths on dashbord . the financial bank recomend me to bring the veicule back to the dealership to have them to fixed . . they didnt want to continue with the contract anymore and canseled . now they want to sell the truck to some one else . and is not safe to drive it with this isuuses
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504529January 30, 2023
EXTERIOR LIGHTING
This vehicle has poor headlight performance. I changed the bulbs to no avail. There is no way this 2015 GMC passes vehicle state inspections if they really look. There is very little power to the lights, even on the high-beams. After some quick research - GM has a service bulletin PIT5374 that addresses this very issue. But the dealerships are using this safety defect as a way to generate service volume. Requiring a $170.00 diagnosis to identify a problem they already know exists.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11502077January 16, 2023
POWER TRAIN, UNKNOWN OR OTHER
I was driving my GMC Sierra upon entering the highway, I was at a stop sign waited for clear traffic when it became safe to do so, I entered the highway and upon excelling up a small incline the vehicle transmission just completely stopped working so as I depressed the accelerator the engine would would wind the RPMs up but the vehicle wasn't going anywhere. I pulled the car over to the side of the road and placed the car in park. Put my emergency lights on and couldn't get the truck to the to go to the area to be free and clear of traffic to transmission engage. I put the car into reverse this is the second time this has happened and this is what my husband recommend I do. When I called him is to place the vehicle in reverse reverse a little bit and then place the car into park and then turn it off. Start the car up again and see if it would engage the gear, it took placing the vehicle in park. After adjusting the steering column and trying it again, the transmission engaged but would not reach the full acceleration. I was on a hill so I put the brakes on and the car brakes would not stop the vehicle. It would bounce and skid a bit as I was on an incline. The transmission was not engaging in reverse either. After resting then it didn't get any speed. There are RPMs just kept whining out. I wasn't able to at first get the car to go into gear after wiggling or adjusting the steering column then it seemed to go in gear but it would only go a few feet and then it the process would start over. this was dangerous as I was on a highway with an incline which means I had no break ability so I was rolling without control. I was able to get the car home and parked in my driveway but as this is the second event that has happened since we purchased the truck I'm making this report. Feel free to contact me if needed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500249January 5, 2023
SERVICE BRAKES
The contact owns a 2015 GMC Sierra 1500. The contact stated her husband was driving when the vehicle in front of them applied the brakes unexpectedly, the driver depressed the brake pedal but failed to stop the vehicle due to the brake pedal being resistant/ rigid causing the vehicle to rear-end the other vehicle. The contact stated no warning light was illuminated. The air bags did not deploy. The contact stated no one was injured nor sought medical attention. A police report was filed. The driver was able to continue driving to their destination. The contact took the vehicle to the local dealer, where it was diagnosed that the vacuum pump had to be replaced. The dealer replaced the vacuum pump back in October of 2022. The vehicle was repaired but the second vacuum pump was also defective and the dealer replaced it on-site for a third time. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 85,500. The contact stated that the failure speed was no more than 70 mph.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11499854January 3, 2023
STEERING
While going at a low speed, the steering starts to get tight. It is not constant but occurs off and on. I have read online about this recall, but the truck I own was not included. I believe it should be. I can't trust pulling into traffic for fear it will lock up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11499768January 2, 2023
VISIBILITY/WIPER
Started my truck and started driving. It was a very foggy night with lots of mist in the air, so I turned on the defroster to clear fog/dew from the side view mirrors. About 10-15 minutes later I hear a very loud pop inside the truck. It turns out my rear driver side window was completely exploded/shattered. This seems to be a known issue in these trucks.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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