GMC Terrain Complaints

3,167 consumer complaints on file.

#11640766February 4, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
Headlights flicker when auto stop releases and clicks back on to move the vehicle. This happens when it wants too but usually at the same time service parking brake will pop up, followed by steering is reduced, drive with care.. Lets see what else. Carplay no longer works. No sound. sd card error pops up. Car will not play music through a cord but will via bluetooth, but charges a phone. OnStar light flickering between green and red until I turned off power to the liftgate. (manually clicking over knob to disable) Headlights flickering can cause accidents. Sure hope there's no epileptics out. Yes, orielly. I have documentation, photos, videos, take your pick I'm here to help. Not evaluated at dealer or mechanic, who can afford labor rates? This has been happening for months and I will continue to report till something is done or lives are cared about.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640387February 3, 2025
ENGINE
The contact owns a 2017 GMC Terrain. The contact stated while driving at an undisclosed speed, the vehicle stalled with no warning light illuminated. The vehicle was able to be restarted. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired; however, the contact was informed that the engine oil levels were low, and oil was added to the engine by the mechanic. The contact stated while driving at an undisclosed speed the failure persisted. The contact stated that while the vehicle was parked, the contact stated that the oil level was low, and the engine was not consuming oil. The contact also noticed oil leaking from the bottom of the engine compartment. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 100,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640451February 3, 2025
ENGINE
My motor blew out of nowhere. I took it to a shop and there was no explanation as to why. I barely drive my car and keep up with oil changes. Please help asap!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640255February 3, 2025
ENGINE
Car burns oil bad . Got an oil change and it only took 12 days to go dry with no oil
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640299February 3, 2025
SERVICE BRAKES, HYDRAULIC
The contact owns a 2018 GMC Terrain. The contact stated while driving at various speeds, the vehicle would not decelerate as intended while depressing the brake pedal. No warning light was illuminated. The vehicle was previously repaired at a local independent mechanic and the vacuum pump was replaced; however, approximately 32 days later the failure reoccurred. The local dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was approximately 58,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640149February 1, 2025
FUEL/PROPULSION SYSTEM, ENGINE, AIR BAGS
consumption of oil! I got my oil changed January 1, 2025. It is now February 1. I have driven less than 500 miles. I had no oil. I have no Leaks or anything wrong. The car just consumes . I have had to have 6 oil changes in the past 3 months. Shop after shop. Has said it just consumes oil and this vehicle is trash. I noticed there was also a lawsuit against it. If you do not put a recall out on my vehicle ASAP, I am going to file a personal lawsuit and sue the hell out of you! For your scam! Somebody better give me a call immediately. Or set me up at my local GMC dealer to fix this issue. I better be expecting a notice in my mailbox or an appointment for a free fix and this better be a recall immediately! Or you’re asking for another lawsuit! I was told my car could blow up. With my kids and it could kill us! You better fix this immediately!!!!!!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639943January 31, 2025
BACK OVER PREVENTION
The contact owns a 2020 GMC Terrain. The contact stated while reversing, the rearview camera screen displayed a blue image. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 104,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639980January 31, 2025
BACK OVER PREVENTION
The contact owns a 2012 GMC Terrain. The contact stated that while attempting to reverse out of a parking space, upon putting shifting into reverse, the rearview camera screen turned off. The contact stated that the display screen went blank, and due to the failure, the vehicle bumped another vehicle that was also reversing. There was no warning light illuminated. The contact stated that it was a minor impact and that there was no cosmetic damage to either vehicle. The Police was not called. There were no injuries reported. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the center console display was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639654January 30, 2025
ENGINE, ELECTRICAL SYSTEM
My vehicle began jerking, shaking and kept shutting off in a highway intersection. I looked on the ground after coasting into a gas station to find oil leaking from under my vehicle. I've never had an oil leak and it caused my starter to go and I've had to replace the camshaft sensors all within the same week. It appears the rear seal went after the cold streak we had. I need my vehicle to take my mother to treatments, etc. Is there any recalls on this?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639733January 30, 2025
ENGINE, UNKNOWN OR OTHER
Hole for timing chain guide bolt damaged by failed guide bolt
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639326January 29, 2025
ENGINE
The contact owns a 2017 GMC Terrain. The contact stated while driving at an undisclosed speed, the contact discovered that there was an oil leak. No warning light was illuminated. The vehicle was taken back to the residence and the contact self-diagnosed the vehicle and was able to confirm that there was an oil leak, and the oil leak was coming from the rear main seal. A dealer was not contacted. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 115,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639399January 29, 2025
ENGINE
While driving home from work in single digit temperatures on Monday 01/20/25 the engine of my 2017 GMC Terrain stalled without warning at a traffic light. I was able to restart the vehicle and drive it the 1.5 miles home. When I exited the vehicle I noticed a trail of oil leading up the driveway into the garage. Oil continued to leak from the vehicle in the garage, and we had it towed the next day. Righter’s Auto Repair found the rear main seal had blown due to a frozen PCV system that GMC is well aware of and subject to TSB 5093c.The vehicle only has 64,856 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639124January 28, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2013 GMC Terrain. The contact stated that when slowing down to come to a stop, the vehicle was jumping and hesitating, causing the contact to shift into neutral(N) to stop the vehicle and prevent the vehicle from shaking. There was a fuel odor that smelled like rotten eggs. The check engine warning light was intermittently illuminated at first but became a constant failure. The vehicle was previously included in the emissions recall N192268180; NHTSA Campaign Number: 10183214 (Engine and Engine Cooling); with DTC: P0420 and the vehicle was repaired; however, the contact stated that the repair was performed had not matched the repair in the Emissions recall. The contact stated that the dealer had replaced the oxygen sensor instead of the catalytic converter and oxygen sensors as stated in the remedy. The dealer was contacted and confirmed that the VIN was included in NHTSA Campaign Number: 10183214 (Engine and Engine Cooling); however, since the repair was marked completed, there were no additional repairs available due to the mileage. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638924January 27, 2025
POWER TRAIN
My car lost oil while I was driving. I also lost power. I had my car over to a garage and the mechanic diagnosed it was a ruptured rear main seal caused by a frozen PCV system. GM knows about the problem but has not recalled it. It is very expensive to repair. And because the manufacturer knows about it but never told the consumer, is fraudulent.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638706January 27, 2025
FUEL/PROPULSION SYSTEM
This is the second time this occurred, once in Oct 2024 and on 1/25/25. While driving the check engine light came on and within one minute the vehicle began to stall and within 20 second the engine shut off. The first time it happened in the middle of the road and the second time I was just able to turn onto a side street. In both cases the vehicle would not restart and left me stranded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638594January 26, 2025
UNKNOWN OR OTHER
My car is allowing me to drive without the key fob. I've drove two hours away from my house where my key fob was. It allows me to shut off the vehicle. Vehicle says ' no remote detected. Press Brake to restart. This is the 3rd incident. This is definitely a safty issue. Someone can take my car 2 hours or so from my residence.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638307January 24, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2023 GMC Terrain. The contact stated while driving at an undisclosed speed, the vehicle was shaking and independently shifted into neutral. In addition, the check engine warning light illuminated, and the vehicle lost motive power. The vehicle was taken to the dealer where it was diagnosed with a possible fuel injector failure. The contact was informed that the fuel injector needed to be replaced. The vehicle was not repaired. The contact was informed that parts were on backorder. The contact stated that the failure occurred while on a trip. The contact was advised to contact the local dealer when she returned home. In addition, the contact stated that in December 2024, the high-pressure fuel tank was replaced by the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 35,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638191January 24, 2025
ENGINE
Rear main seal leak car has been with dealer since 12/30/24 until present day. No updates other than I may need a engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637996January 23, 2025
ENGINE
Oil consumption on this vehicle is terrible. All GMC for that matter. It burns in the engine and have to refill or top off multiple times a month.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638001January 23, 2025
ENGINE
Clogged manifold and engine head. Blockage buildup in manifold and Pcv valve causing exhaust problems. Oil sludge block air in head and manifold causing CEL to come on. And these vehicles drink engine oil like water. Gives code P0411
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Terrain