2018 Model Year

GMC Terrain

NHTSA Complaints & Reliability Data

Compare
Complaints
204
Recalls
1
Crashes
13
Severe
20

Active Recalls

Manufacturer safety recalls

18V340000 May 2018

Other

No consequence data available

Recent Complaints

Latest owner reports

Power Train
Sep 2026

The contact owns a 2018 GMC Terrain. The contact stated that while driving at various speeds, there was an abnormal grinding sound coming from the veh...

Engine
Mar 2026

Vacuum pump failure resulting in crankshaft sensor to completely sheer off.

UNKNOWN OR OTHER
Feb 2026

Vehicle will not shift out of park, despite replacing the valve body, putting in a new battery, and transmission fluid. It has been this way since mid...

Engine
Feb 2026

Brakes were hard to engage or press when stopping due to Vacuum pump stop working. Had to replace the vacuum pump

Brakes
Feb 2026

Faulty Brake Vacuum Pump!!!! 2018 GMC Terrain @ 119254 miles--- NO warning! Brakes were hard to press, did not work and I rolled into ditch to preven...

FUEL/PROPULSION SYSTEM
Jan 2026

Turbo boost went out in my vehicle and 3 others with the same engine, different makes/models. Vehicles were serviced at Grayling Car Care 4430 M-72, G...

SERVICE BRAKES, HYDRAULIC
Nov 2025

The contact owns a 2018 GMC Terrain. The contact stated that while driving at an undisclosed speed, the vehicle shuddered and failed to come to a stop...

Electrical System
Nov 2025

The infotainment system will just randomly start going haywire and when it happens, you cannot use the touchscreen. It will try to randomly delete app...

Air Bags
Oct 2025

My car said to me this not that there is something wrong with the Service Safety Restraint system! It was fine last night when I got home! I just boug...

SERVICE BRAKES, HYDRAULIC,AIR BAGS
Oct 2025

The contact owns a 2018 GMC Terrain. The contact stated while driving at an undisclosed speed, the air bag and ABS warning lights illuminated. The veh...

VS

Vehicle Safety Research Team

Automotive Data Analysts

Independent researchers analyzing NHTSA data to help consumers make informed vehicle decisions.

Data updated: March 5, 2026

Summary

The 2018 GMC Terrain has 204 complaints and 1 recalls on record. The most commonly reported issue is Brakes. 13 crash-related incidents have been reported.

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