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Common Problems with 2018 GMC Terrain

Retrospectively, the 2018 GMC Terrain had 83 complaints, and 17% of issues had something to do with UNKNOWN OR OTHER problems.

What is the most common problem with a 2018 GMC Terrain?

Based on car owner complaints, the most common issues with the 2018 GMC Terrain fall into the category of UNKNOWN OR OTHER. Below we had classified the complaints into groups by components affected.

UNKNOWN OR OTHER 14 ELECTRICAL SYSTEM 13 POWER TRAIN 13 ENGINE 10 ELECTRONIC STABILITY CONTROL 7 SERVICE BRAKES 6 AIR BAGS 4 FUEL/PROPULSION SYSTEM 4 STEERING 3 VEHICLE SPEED CONTROL 2 SUSPENSION 2 WHEELS 2 VISIBILITY/WIPER 2 SEATS 1

Worst 2018 GMC Terrain Problems

We have singled out the top-3 most critical reports that involved victims or injuries.

AIR BAGS
2018 GMC Terrain January 17, 2020 Victims: 2

When the side curtain airbag went off it burned a hole through my daughter's coat and shirt causing 2nd-3rd degree burns.

AIR BAGS
2018 GMC Terrain June 17, 2018 Victims: 1 Mileage: 3500 miles

This is a complaint against recall n182155400. my husband a cpd police sergeant was driving home from work on june 17, 2018 nb on 111th street (public...

SERVICE BRAKES
2018 GMC Terrain December 20, 2017 Mileage: 1500 miles

The first time while driving at 60 mph, the vehicle instrument panel warning lights activated and gauges fluctuated followed by acceleration, braking...