Based on car owner complaints, the most common issues with the 2020 GMC Terrain fall into the category of VEHICLE SPEED CONTROL. Below we had classified the complaints into groups by components affected.
We have singled out the top-3 most critical reports that involved victims or injuries.
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...