Warning Problems of GMC Terrain

GMC Terrain owners have reported 3 problems related to warning (under the lane departure category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Terrain based on all problems reported for the Terrain.

1 Warning problem of the 2026 GMC Terrain

Failure Date: 12/01/2025

Two issues here. First is that the car will give a danger warning when nothing is there. Sometimes goes as far as slamming on my breaks. Both in drive and reverse. Second is the lane keep assist. It’s like it is working backwards. I turned this all off because it would jerk me out of the lane and into the other lane or off to the sides of the road.

2 Warning problem of the 2018 GMC Terrain

Failure Date: 06/13/2022

Radio, hands free calling, and light on mirror shorting out. None of them work. It’s like it has a short in the wiring.

See all problems of the 2018 GMC Terrain 🔎.

3 Warning problem of the 2022 GMC Terrain

Failure Date: 03/25/2022

Mientras conducía el panel DE instrumento digital donde están los relojes se apagó en su totalidad. El auto siguió funcionando pero no podía ver nada en el panel porque estaba literalmente muerto. Me moví hacia un costado DE la carretera y apagué el carro. Lo volví a prender pero el panel siguió muerto. El carro si trabajaba. Llegue con mucho temor a casa y lo envié al concesionario donde lo compré. Me dijeron que era el panel DE instrumentos y que lo tenían que cambiar.

See all problems of the 2022 GMC Terrain 🔎.


Other Common Lane Departure related problems of GMC Terrain

Problem Category Number of Problems
Blind Spot Detection problems
17
Warning problems
3
Assist problems
2


Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations