2025 GMC TerrainRecalls, problems, MPG & safety

“Two problems with this vehicle: 1) Transmission occasionally slips on the 2-3 shift which the dealer says he cannot duplicate. Vehicle was brought in four times for this problem. According to the dealer GM corporate has stated the transmission is working within normal parameters, since no codes were found. 2) Vehicle auto braking randomly slams on the brakes with nothing in its path. Dealer states turn off system to just Alert only not Alert and Brake. No codes were set. Fortunately no one was behind me as this could have caused me to be rear ended by another vehicle. In both cases it appears that if no codes are set the problem does not exist. Nov. 21, 2025, Feb. 12, 2026, July 09, 2026, Aug. 28, 2026.”

“OnStar module not working”

“I was driving north on [XXX] when I felt a slight pull to the right. I figured it was my lane assist even though I was in my lane. Seconds later it felt like if someone was in my passenger seat and just yanked my steering wheel to the right hitting the guardrail. My whole tire and the assembly was off but everything was still intact to the tire. The tie rods, axle, ball joints, the whole assembly. During investigation I was told by the mechanic that the stabilizer bar was a clean break. There was damage to the front end and all down the side. I was told by GM that the force of the impact was what ripped off my tire but it was not enough impact or damage to deploy the airbags. I was on crutches for my left leg, bruising and scar now from a huge abrasion to my right arm. Still having right shoulder pain. I sent all this to the attorney General and they tried to mediate but Afton from GM told Mike that he contacted me 3 times and I did not return her calls. I called her a left her multiple messages and she has not returned my calls. I only had the car for a few months with 5,000 miles on it. I put $2,500 down then had to turn around and get a used vehicle, put…”