GMC Terrain

"Major problems, probably starting with stretched timing belt that resulted in excessive cylinder head wear and oil consumption. Belt replaced first, then eventually engine rebuilt under warranty"

"Engine initially had timing belt issues and was burning oil, and was fixed under warranty. Several years later, when no longer under warranty, at about 180,00KM, the engine blew a connecting rod that destroyed the engine, while driving on the highway."

"A common problem with 2010-2012 GM 2.4L Ecotec engines is blow-by of the piston rings, which causes the engine to begin to consume oil. Basically, the additional pressure below the pistons forces the oil out of the PCV and feeds it back into the intake and then burns in engine. On this particular engine, the VVT (Variable Valve Timing) solenoids operate off oil pressure. As the oil is consumed, pressure drops and the VVT stops working. This can cause a number of issues, the worst of which (I guess?) is stretching of the timing chain and with the timing screwed up, the valves begin crashing into the cylinders. This situation was exasperated by the fact that the shop where I have been taking it for service has been using the wrong oil (natural instead of semi-synthetic), which accelerated the degredation. Fortunately, the problem did not get to the point of a complete failure of the timing chain. It is currently in the shop (1 week) and will not be finished for another 6 days. GM will not be paying for this due to the wrong oil being used, but the shop I have been using is paying for the entire repair job (very fortunate for me as this is likely a $5000 job!)."

"Dealer, though they knew the problem they wanted to fix didn't have the parts and had the car for several days - and now the sound just came back"

"The engine growls and the dealer replaces the timing chain. It was not part of the recall. Very expensive to fix but got a small concession from GM. Growling noise has come back after a few month. Sound turns heads as start up"

"Check engine light came on (8 times in 4 years). Dealer replaced timing belt"

"Cold-start engine rattle and miss. Timing chain, cam actuators, tensioner, and gaskets replaced.......but still have cold start rattle and miss from engine. And, it's getting worse. Has been serviced 5 times for these issues"

"Check Engine light came on 3 times. Each time I used Onstar to do the free live vehicle diagnostic. Each time a different result came back with each one asking me to go in for service as soon as possible. Each time I did and a series of engine r"

"NOTE: This may be better categorized as an Engine problem. I did it as Emission Control issue because of the Check Engine light. Vehicle had 31777 miles. Check Engine light was on and vehicle was running very rough, even stalling at times. Due to seriousness/complexity of problem, I took it to Dealership for servicing. Minimum $99 labor for one hour of diagnostic to find problem. Per service invoice: Technician found code P0010 VVT solenoid code. Technician replaced both cam timing solenoids and reprogrammed ECM. Part numbers replaced were 12655420 (S) valve, and 12355421 (S) valve. Repair was NOT covered under warranty due to vehicle age, even with comparatively very low mileage. Total repair cost: $327. Service writer told me at the time that this was a fairly rare but not uncommon problem. What we had to have repaired usually lasted other owners for as long as they owned the vehicle. When asked about the cause, and how to prevent this in the future, there was some hemming and hawing, a little sideways eye glancing and poking of the toe to the floor, and so on, but the bottom line was...I don't know. There could have been several factors involved is kind of a standard non-committal answer. But, after much personal research, I came to the conclusion that it was due to my use of cheap gas. I usually buy the bargain stuff at the grocery store, but I have found that the brand name fuels may have a better/more consistent detergent blend, and will probably keep the fuel system cleaner, longer. I still buy bargain gas. But now I also buy brand name gas more often. I also avoid using fuel additives bought at the auto store due to a most unfortunate and costly valve-burning incident on another vehicle a number of years ago. But that's another story..."

"I had one injector fail and had to replace it"

"Had to replace the fuel throttle body"

"High pressure fuel pump failed and flooded the engine crankcase"

"pump did not make full pressure, caused vehicle to not accelerate smoothly"

"Just finished repairs under drive-train warranty - cracked manifold, damaged sensors, and replaced catalytic converter, all related problems"

"System didn't work, lost locations, phone and radio were also affected by the nav system"

"See previous answer"

"If radio set to a particular station when shutting off care, the set station would not be there when retarting the car. However, since repair I received a recall notice for reimburement"

"The entertainment system would not remember any settings, i.e. it would go back to factory default setting every time we got in. Time display "12:00", no station preset and it didn't recognize our satellite radio subscription"

"Failure of entire in dash radio: date/time, mileage, preset stations, etc. Entire system replaced by dealer under warrantee"

"Sometimes hard to turn the whells, and it is a noice from the pump when turning the wheels"

"Replaced loose both trailing arms at a cost of $500 (thru GM dealer). This was not a debilitating issue, just felt like something was loose when stopping and accelerating."

"Slight vibration at a sudden speed"

"Knew I was due for a 4 tire replacement due to tread wear, but didn't know that one of the tire's tread was breaking loose from the sidewall. Replaced all 4 tires."

"First one rear went bad, then a couple of months later the other side went bad and currently there is a problem with the front. They are extremely expensive to replace"

"Weather seal near the top of the drivers door is failing causing water to leak into the lower drivers compartment"

"Rear driver side seat squeaks with every bump in the road. It has been repaired by GMC before (while it was still under warranty), and now has recently begun doing this again. Initially we were told that a bolt needed tightening"

"Very noisy car as you drive down highway, Replaced door seals twice but it still is noisy"

"Some wind noise"

"Started 2014 never was never able to get it resolved"

"downshifting issue for 2 years GM finally replaced trans. This was written up in consumer reports (possibly April 2012) Your article was very accurate Just what I experienced!"

"Car stalled while driving, had it towed to the nearest repair facility where they determined that the transmission could not be repaired and had to be replaced. Many phone calls between us and the repair business and GMC"

"Transmission had to be completely rebuilt at about 165,000 KM. Car stopped working as transmission failed."

"replaced"

"required transmission replacement, $4330.00"

"Starting at 23000 miles the warning system for the ECS and the ABS would alert a problem, then go away for several months. This seems to be a reoccuring theme with GM's Stabilitrac system. I had SBS checked, it is OK, but ECS turns on the ABS warning light at various times. It's sad, car doesn't have 50000 miles, yet a key traction system gives off false signals."

"Stabilitrak System stopped working about two years ago."

"This system, comes on and off since 24000 miles. Some times you can turn off the system, others times it won't turn. Suddenly the lights go off, the warning light will be off for days, then turn back on."

"Two failures in one year, ultimately part of reason for replacement of transmission. Should get more than 82000 miles before needing transmission replacement"

"Seals had to be replaced cost was $1700"

"Seam on resonator rusted out"

"2018 exhaust manifold cracked in half"

"Pump began to leak. Had to replace it. Pump was $125, labor was $500."