Vehicle Speed Control Related Problems of the 2020 GMC Terrain

Table 1 shows two common vehicle speed control related problems of the 2020 GMC Terrain. The number one most common problem is related to the vehicle speed control (ten problems). The second most common problem is related to the cruise control (one problem).

Table 1. Vehicle Speed Control related problems of GMC Terrain

Problem Category Number of Problems
Vehicle Speed Control problems
10
Cruise Control problems
1

Recently reported Vehicle Speed Control problems of the 2020 GMC Terrain

The Vehicle Speed Control problem

Random problems accelerating. Like I can be pulling out of my parking spot in revese then switch it to drive an try to move and it won’t move at all or very slowly then out of nowhere it accelerates fast   Read details...

The Cruise Control problem

When cruise control is engaged at 71mph, holding +res button to increase speed and releasing it at 77mph sets cruise speed too high. Car continues to accelerate. Cruise gets set at 100mph and accelerates more then desired. See link with video of event https://photos. App. Goo.   Read details...


Vehicle Speed Control related problems in other GMC Terrain model year vehicles:



Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations