How many fuel system complaints does the 2018 GMC Terrain have?

NHTSA lists 15 fuel system complaints for the 2018 Terrain, which is 7% of the 220 total complaints filed for that model year.

Is there a fuel system recall for the 2018 GMC Terrain?

Yes. Recall 18V358000, reported May 31, 2018, covers replacement of the high pressure fuel pump and high pressure fuel pipe on affected GM vehicles including the 2018 GMC Terrain.

At what mileage do fuel system problems typically show up?

The median mileage at failure for fuel system complaints on the 2018 Terrain is 26,000 miles.

Have fuel system problems caused crashes or fires in the 2018 Terrain?

NHTSA data shows 2 crashes and 2 injuries linked to complaints in this area, but no fires.

Is fuel leaking a common complaint on the 2018 Terrain?

Fuel leaks appear in multiple sample complaints, including reports of gas smell, visible puddles under the vehicle, and a leaking diesel fuel line.

2018 GMC Terrain Fuel System Problems

NHTSA lists 15 fuel system complaints for the 2018 GMC Terrain, 7% of its 220 total complaints, with a median failure mileage of 26,000 miles. A related recall (18V358000) covers replacement of the high pressure fuel pump and fuel pipe.

Fuel System complaints: 15; 7% of 220
Crashes reported: 2
Fires reported: 0
Injuries reported: 2
Median mileage: 26,000 mi
Related recalls: 1

Typical fuel system symptoms owners report

Owners report fuel leaking from lines while the vehicle is running, parked, or in gear, sometimes with a strong gas smell around the car.
Some describe the auto start/stop system causing a lag or hesitation when the engine tries to restart after stopping at a light or sign.
Several report sudden loss of power or inability to accelerate above a certain speed, with a dashboard message telling them to keep driving above 30 MPH.
One owner reported jerking, shaking, and RPM spikes when accelerating out of auto-stop, with the vehicle unexpectedly shifting into park in traffic.
A diesel-equipped Terrain owner reported the diesel particulate filter failing, triggering a check engine light and a forced deceleration to 20 MPH.

When 2018 GMC Terrain fuel system complaints were filed

First complaint Jan 11, 2018, latest May 23, 2026.

15 complaints filed with NHTSA from Jan 2018 to May 2026; peak Jan 2018 (1).

Fuel System recalls for the 2018 GMC Terrain

NHTSA 18V358000May 31, 2018Fuel System895 vehicles
Fuel system, gasoline:delivery:fuel pump
General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.
Risk: A damaged fuel line can create a fuel leak, increasing the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.

Fuel System complaints by Terrain model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

201016 (6%)
201148 (12%)
201229 (8%)
201323 (6%)
201415 (5%)
201517 (6%)
20163 (2%)
20174 (3%)
201815 (7%)
20194 (2%)
202031 (16%)
20214 (11%)
202237 (62%)
202321 (54%)
202410 (20%)
20250 (0%)

Frequently asked questions

How many fuel system complaints does the 2018 GMC Terrain have?: NHTSA lists 15 fuel system complaints for the 2018 Terrain, which is 7% of the 220 total complaints filed for that model year.
Is there a fuel system recall for the 2018 GMC Terrain?: Yes. Recall 18V358000, reported May 31, 2018, covers replacement of the high pressure fuel pump and high pressure fuel pipe on affected GM vehicles including the 2018 GMC Terrain.
At what mileage do fuel system problems typically show up?: The median mileage at failure for fuel system complaints on the 2018 Terrain is 26,000 miles.
Have fuel system problems caused crashes or fires in the 2018 Terrain?: NHTSA data shows 2 crashes and 2 injuries linked to complaints in this area, but no fires.
Is fuel leaking a common complaint on the 2018 Terrain?: Fuel leaks appear in multiple sample complaints, including reports of gas smell, visible puddles under the vehicle, and a leaking diesel fuel line.