2018 GMC Terrain problems
Owners have filed 324 complaints about the 2018 GMC Terrain with NHTSA. Service brakes account for 20.7% of them — narrowly the most common, ahead of engine at 16%.
Complaints324
Crashes22
Fires2
Injuries17
Deaths0
What owners report breaking
Service brakes 20.7% · 67
Engine 16.0% · 52
Power train 12.7% · 41
Electrical system 10.8% · 35
Unknown or other 10.2% · 33
Air bags 4.3% · 14
Fuel/propulsion system 3.7% · 12
Service brakes, hydraulic 3.4% · 11
Severity
Of those complaints, 22 describe a crash, 2 describe a fire and 17 report an injury.
Reading the numbers
Across the 11 model years of the GMC Terrain in this data, 2018 sits 7th by complaint volume. 2011 draws the most.
Filing volume has held steady, 115 in the last three years against 104 in the three before.
The median odometer reading at the time of complaint was 15,615 miles.
In owners' own words
The first time while driving at 60 mph, the vehicle instrument panel warning lights activated and gauges fluctuated followed by acceleration, braking and steering movement. Then the information panel displayed stabilitrak unavailable, collision warning unavailable, lane change alert unavailable and transmission service. The car then started shifting erratically. The 2nd time same situation while driving 30-40 mph. Service brakes · reported at 1,500 miles
Bought brand new. At 14,000 miles all 4 rotors are pitted with grooves. Dealer took them apart and found nothing that could cause it. Said they were "weathered". Took it to 2 other places and said it was a manufacture defect. Dealer wont replace because bumper to bumper wont cover it. Its a defect didnt notice until another dealer did the oil change. The dealer in february said they werent like that in february. Service brakes · reported at 14,000 miles
My 2018 GMC Terrain brakes did not work when coming to a stop at stop lights which caused me to rear end the car in front of me. There was no warning on my suv nor did I receive a recall on this matter. This happened twice to me in this same vehicle where the brakes did not respond at a low speed causing an accident. This accident just happened to cause damage to my vehicle and the car in front of me. Service brakes · reported at 44,950 miles
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…