Forum Discussion
OnStar Module Broke
I have a 22 Yukon XL Denali and when it hit 38K miles as well, the Telematic Control Module ALSO stopped working. I contacted the dealer and they informed me that I would need to bring it in for a diagnostic test, but that it was around $800-900 to replace. My car just ran out of the warranty. So I have just gone without. Today, my dealer sent a mobile technician to my home to look into a recall for an over-the-air update, that could potentially drain the battery affecting vehicle performance. They were not able to update my vehicle becuase of the Telematic Control Module is not working. Now that I am reading that EVERYONE has had the same issue, I agree that GM should be replacing these at no charge. What a mess! Now we also have to deal with the fear of a sudden loss of propulsion. I would truly appreciate if GM would address this issues for us.
Our team would like to assist alongside your certified GMC dealership to the best of our abilities. While we cannot expedite parts, or make any guarantees related to warranties, we can provide open communication and assistance alongside your dealer throughout the repair process. So we may learn more, please send a private message to OnStar_Support.