There are 1 owner-reported body & structure complaints for the 2019 GMC Terrainin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
While I was driving on a highway, my sunroof suddenly imploded, causing shattered glass to fall all over myself and my car. The outside temperature was 50° and my car’s internal temperature was set to 68°. I reported this to the GM dealership and they told me to just report it to insurance. I am making a claim with insurance now. There were no warning or signs of this happening, just a sudden extremely loud noise and glass falling. No inspections have been done.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026