Forum Discussion
Onstar Module Needs Replaced
I have a 2023 GMC Sierra 1500 Denali that I had to take in for a dealer for them to tell me the OnStar Module needed replaced. My vehicle is over the 36,000 miles so they quoted me close to $750 to f...
Two weeks ago I got Terrain 2026, one week into driving the vehicle I started to have “Emergency calling” error messages. GPS, NAV, myGMC App and onStar, all stopped working. Took it to the dealership they tried to reprogram , it failed. They said the Telematics module needs replacement. This is just one week driving the Terrain. So don’t be surprised.