Gmc Terrain Transmission Problems
238 owner complaints filed with NHTSA across 16 model years.
Complaints by Year
Worst year: 2011. Best year: 2025.
Owner Reports
A representative sample of complaints filed with NHTSA.
Vehicle did not go into park when the ignition was turned off. Car started to roll while passenger was getting out of the vehicle as another vehicle was parking beside us. The other vehicle could not avoid our rolling vehicle. Passenger ...
My 4 cyl. AWD GMC Terrain has had excessive oil use which caused premature failure of the timing chain, loss of power/compression, blown engine, damage to exhaust manifold, cellinoids, and melted the catalytic converter. Its was a road s...
THE CAR KEEPS REVVING AND DOESN'T SHIFT INTO GEAR. YOU HAVE TO LIFT YOUR FOOT OFF THE GAS PEDAL AND GIVE IT A FEW SECONDS AND THEM PRESS IT AGAIN. HOWEVER WHEN YOU PRESS THE GAS AGAIN THE CAR JUMPS INTO GEAR CAUSING THE STEERING WHEEL TO...
EXHAUST MANIFOLD CRACKED BETWEEN CYLINDERS 2 AND 3 UPSTREAM OXYGEN SENSOR FROM HOT EXHAUST GASES FROM THE LEAK PASSING ON THE WIRES AND HEATER ELEMENT WITHIN THE OXYGEN SENSOR AND EXHAUST MANIFOLD TOP HEAT SHIELD. CARBON MONOXIDE LEAKING...
No engine lights are on. When at stops it starts chugging and when I accelerate sometimes it does not go like it should. It idles high and feels like it is slipping. I have almost been hit in the rear several times when this happens. One...
Car locks itself into 2 Wheel Drive when conditions are "unfavorable" meaning sometimes rain and most commonly in cold weather. If anyone has driven on snowy and icy roads during the winter, they know how much of a problem this can cause...
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dash...
The contact owns a 2024 GMC Terrain. The contact became aware of a fluid leak underneath the vehicle. There was no warning light illuminated. The vehicle was driven to a local dealer, where it was diagnosed with a leaking torque converte...
The contact owns a 2019 GMC Terrain. The contact stated while driving at an undisclosed speed, the transmission unexpectedly shifted into neutral(N). There was transmission fluid on the ground, and the vehicle became disabled. The vehicl...
SUVs check engine light turned on and went into reduced power mode, it has been very cold for approximately a month. Code P0299.
The contact owns a 2020 GMC Terrain. The contact stated that while driving 35 MPH and depressing the accelerator pedal while driving uphill or making a left or right turn, the tires were skipping, and there was a clicking and whining sou...
The contact owns a 2018 GMC Terrain. The contact stated that the transmission was shifting gear erratically. The contact stated that the doors were locking and unlocking independently, and the instrument cluster was blank. There was an a...