GMC Sierra Complaints (2014)

895 consumer complaints on file.

#11476644July 30, 2022
SERVICE BRAKES, ENGINE
the catalytic converter failed at 110,000 miles and the brake boost hydraulics failed to work properly at 115,000. The electronic stability control started acting erratically at 115,000 miles also.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11475195July 21, 2022
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
The contact owns a 2014 GMC Sierra 2500. The contact stated that the vehicle failed to start as needed. The contact stated performed a diagnostic test on the vehicle and determined that the engine control module (ECM) needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were both contacted and informed the contact that the vehicle was out of warranty. The failure mileage was 74,319.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473675July 13, 2022
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2014 GMC Sierra 1500. The contact stated while he was under the vehicle performing a routine check-up, he noticed that the frame of the vehicle looked rusted. The contact poked his finger into the subframe under the rear passenger’s side causing his finger to go into the frame of the vehicle. An appointment was scheduled with the dealer for the vehicle to be inspected. The manufacturer was contacted and advised the contact that the vehicle should be diagnosed. The failure mileage was 69,073.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473231July 10, 2022
SERVICE BRAKES
At low speed and idle, brakes lose power and pedal becomes hard to push. Once RPMs increase, brakes regain full use.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11472705July 7, 2022
STEERING
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of power steering assist. The failure nearly caused a collision. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was 85,870.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11472552July 6, 2022
AIR BAGS, SEAT BELTS
The contact owns a 2014 GMC Sierra. The contact stated that while driving at 42 MPH, she was involved in a three-vehicle accident after a vehicle involved in another accident ricocheted and hit her vehicle. The driver's side air bag exploded but did not deploy. Black smoke was released from the steering wheel and the air bag fell on the contact's left leg. The driver seat belt retractor fell apart during the accident which sliced the top part of the contact's ear; in addition, the failure sent a part of the contact's earing into her ear canal. The driver of the vehicle that was originally hit in the accident died the next day in the hospital; another passenger in that same vehicle was critically injured. The contact was treated days later at a hospital for a severe burn to the left leg due to the airbag. Her leg remained infected despite the treatment received at the hospital. The contact's ear was not treated. A police report was filed. The contact's vehicle was initially towed to an independent mechanic and then to a friend's home. The contact's insurance had yet to make a decision on the repair for the vehicle. Upon investigation, the contact discovered NHTSA Campaign Number: 21V245000(Seat Belts) and 17V437000(Air Bags, Seat Belts) which she linked to her failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 93,622.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11471943July 1, 2022
SERVICE BRAKES
"Service Trailer Brake System" alert on dash. This is a safety concern for 2 reasons; the first being the chime made to warn the driver is distracting, persistent, and annoying. The second is the trailer brake system is apparently not functioning properly which is a danger while towing. This is not the first time this has happened and is a danger to me, my family, and other on the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469980June 19, 2022
ENGINE
My truck recently had an engine lifter fail when pulling out onto a very busy road. When I accelerated hard into traffic my check engine came on and I suddenly lost most of the engine power and it went into limp mode. I was almost rear ended when my truck nearly came to a stop. I was told it is a defective/poor design of the cylinder deactivation system from the dealer. Ther is no fix but to replace with the same lifter part number which was done and it also failed again 4 days later in a similar situation turning onto a road into traffic. My truck is now back in the shop to have lifters replaced twice in one weeks time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469124June 14, 2022
SERVICE BRAKES, ELECTRICAL SYSTEM
Service trailer brake system warning message. Trailer brake controller inoperable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468083June 7, 2022
SERVICE BRAKES, ELECTRICAL SYSTEM, STEERING
Whenever driving I get a message stating that I need to service my trailer brake system. This is most likely due to cheap wiring installed by the manufacture. This has been going on for over a couple of months. Just recently, I was making a slow turn and my vehicle shut off on me and I lost control of my brakes and steering and all power to the vehicle which is a huge safety concern and I am unsure if they are related or not
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466429May 27, 2022
ELECTRICAL SYSTEM
While driving, the vehicle will briefly shut down and lose all engine and electrical power. The GMC dealer was alerted and I was advised to the battery cable that were burned out and the starter shield.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11465541May 21, 2022
AIR BAGS, SERVICE BRAKES, ELECTRICAL SYSTEM
Air bags didn't deploy on 2 separate incidences and brakes went out last incident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11464018May 10, 2022
ELECTRICAL SYSTEM, STEERING, VEHICLE SPEED CONTROL
When I slow down to make a turn, my truck loses power making the turn very dangerous. I lose control of the vehicle for a few seconds due to loss of power. It is very dangerous for me to make turns.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463731May 7, 2022
STEERING
Lose power steering at low speeds typically in a low speed turn. Stabilitrack warning appears on the dash and sometimes lose power to the entire dash including radio and A/C.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463679May 6, 2022
ENGINE
AFM lifters are failing at a high rate. Had lifters replaced for $3k a year an half ago at 125k miles and they failed again at 149k miles just recently The problem is getting worse with the newer models
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463203May 3, 2022
SUSPENSION
Cross frame member ahead of rear wheels has rotted and failed. It is located behind the cab and is the cross frame that holds up gas tank and forms the anchor point for the rear shock absorbers. I have been told by dealer that truck is not safe to drive. It is now at a body shop. The suspension is compromised, gas tank could fall, and drivability safety is affected. Truck is only 8 years old, the cross member is not visible to consumer, there has been no undue use or environmental conditions to cause the rot and failure of the component. Further, the manufacturer does not sell a replacement part, so the entire frame of the truck would need to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11461441April 20, 2022
ENGINE, POWER TRAIN
My vehicle recently started "shuttering" while driving. Service report says it is a "common GMC issue with the Torque Converter", $3200. They also reported a "substantial leak" in the radiator, and again, says it is a very common fault of GMC Trucks. And another $2700. If these conditions are as common as they indicate, why are there no corrective measures?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11460479April 12, 2022
SERVICE BRAKES, FUEL/PROPULSION SYSTEM, STEERING
2014 Sierra 2500HD SN ([XXX]) Leaving on vacation towing camper with family Bosch CP4 fuel pump issue left me stranded on a HWY 9 just outside Clinton, AR which is a 2 lane HWY with no shoulder. The vehicle gave me no prior warning, dash board suddenly read power restricted followed immediately with complete power loss as I reached to top of hill. I was forced to steer and brake the truck and camper with no power, down the hill to prevent vehicles from passing at crest of hill. This left me and my family and numerous other drivers in a very dangerous situation as cars tried to pass. I had to open the hood and try to determine what was going on. I directed traffic until a Van Buren County, AR Sherriff’s Deputy arrived scolding me to get the truck and trailer out of the highway. I was forced to unhook trailer in middle of HWY and leave it. All the while, vehicles passing in danger of head on collision because there was only one officer directing both sides of traffic. GM is aware of this issue that cost me $10336 at GM Dealership where repaired. Had I been aware, I would have had this replaced this Bosch CP4 part to prevent the unsafe conditions I encountered. One message came on dash, restricted power, and I was powerless. Final Bill stated “Found Injection pump has come apart internally and has put metal through the system.” Internet search stated: According to InjectorsDirect.com, the 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year-range model. Failure of this CP4 pump is usually catastrophic, causing metal particulates to contaminate the entire fuel system. Please help this from happening to another person. These trucks are advertised showing families pulling campers traveling through mountains. That is exactly what my family was doing. I have additional documentation if needed. 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
#11459739April 5, 2022
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Trailer brake system is blinking to much
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459744April 5, 2022
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
The contact owns a 2014 GMC Sierra 1500. The contact stated that upon depression on the brake pedal, the trailer braking system warning message appeared on the instrument panel. The contact also stated that a fuel odor would emit from the vehicle. The vehicle had yet to be serviced or diagnosed. The dealer nor the manufacturer had yet to be notified of the failure. The failure mileage was 122,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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