Forum Discussion
Onstar Module Needs Replaced
I’ve had the module issue along with radio (infotainment needing to be replaced) since November 2025, two months after I purchased the new 2026 Sierra 1500 AT4 3.0 Duramax, all GM is allowing is a reset for everything, will not order or allow the parts to be ordered. I’ve been to 4 dealerships, 3 more than twice for the same issues that always happen again within a few days.
We completely understand how frustrating it is to deal with recurring infotainment and module issues on your new 2026 Sierra, especially after visiting multiple dealer, @kdpounds11. As our dealers serve as our technical experts on the ground, we rely closely on their hands-on diagnostics to determine the next steps for repairs. To help us look into your situation and see how we can best support you, please click the envelope icon at the top right of your screen to send a private message directly to OnStar_Support with your full contact information (name, email, phone) , VIN, current mileage and the name of the last dealer you visited. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.