2018 GMC Terrain electrical system problems
The 2018 GMC Terrain has 42 electrical system complaints filed with NHTSA — 13% of the year's total, and up sharply from the prior model year.
42
Electrical System complaints
13%
Share of year
1
Crash-involved
0
Related recalls
Electrical System complaints by year
What owners report
“SCREEN WENT BLACK AND WARNING CHIMES AND SEAT VIBRATION DID NOT GO OFF WHEN BACKING UP. HAD TO FILE A CLAIM WITH INSURANCE TO FIX MY DENTED BUMPER. I ALSO EXPERIENCE ISSUES WITH THE AUDIO BUTTONS ON THE STEERING WHEEL. I AM NOT ABLE TO CHANGE THE SONG IN I AM ON APPLE PLAY AND THERE IS ALWAYS A…”
Common questions
How many electrical system complaints does the 2018 GMC Terrain have?
NHTSA has 42 complaints about the 2018 GMC Terrain electrical system — 13% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.