Vehicle Questions and Answers
Welcome to the Vehicle Q&A Hub. Find answers to your automotive questions, share your experiences, and get expert advice on vehicle maintenance, troubleshooting, and more!
16022 views
7 answers
When the touchscreen malfunctions in a 2018 GMC Terrain, it is typically due to the infotainment system freezing. To address this issue, try pressing the volume knob while the vehicle is running until the screen resets. If this doesn't work and the screen remains unresponsive, check the radio fuse located in the fuse panel under the driver's side dash. Ensure that the fuses are intact and the wiring connections at the back are secure. If everything checks out, replacing the head unit may be necessary.
The screen will choose contacts and make random calls, as well as switch stations at random.
Hey Peggy, I'm experiencing a similar issue with my screen. It keeps calling my contacts and changing radio stations at random. Have you figured out what's behind your problem yet? Mine happens whenever I get in my car now, with the system starting to scroll through my contacts out of the blue.
If the touch screen on the 2018 GMC Terrain is unresponsive, it could be due to a lack of power or the screen may be too sluggish to register inputs properly.
The GPS display on my 2018 GMC Terrain is not functioning properly.
In 2018, my GMC Sierra's infotainment system suddenly went on the fritz. While the screen was still functioning properly for the rear camera, the infotainment features weren't running due to a power issue. I tried examining and resetting the blue connection wire in the glove box, but it didn't fix the problem. As a last resort, I disconnected the negative battery ground for about 10 minutes, reconnected it, and luckily, everything returned to normal.
I encountered a similar issue where my screen wouldn't turn on. I tried restarting the car multiple times to no avail. Then, I waited for 5 minutes with the car turned off before starting it up again, and that seemed to fix the problem. I've noticed that the blank infotainment screen issue happens more frequently when using the remote start feature. Additionally, the radio would occasionally switch stations and contacts randomly, but that stopped after cleaning the screen. Hope this information is useful to you.