Forum Discussion
Onstar Module Needs Replaced
Welp.. I Joined the club. It appears my Telematics module is dead as well. I've had nothing but electical issues since i've picked up my 2024 GMC Sierra 3500HD. been to the shop several times. It's the Duramax so I have two batteries. Usually I drive it daily so it's always starting and charging, well, didn't drive it for four days it didn't start, dead, clicks and all. Had all types of problems after I recharged it (as yall already know) but after a complete disconnection of the battery for a day (discharging the caps) It was fine. a few months later, really slow to turn over but finally did start... a few minutes later after driving, check engine light came on. On star no longer lights up (no green or red light), and no 4g LTE. Checked the batteries just to understand their state. one battery only has 550CCA (very low for a 730cca battery) and the other had 64... 64CCA (I'm checking CCA because it's below freezing where I'm located at the time. So it sounds like that "fix" drained my battery and from what I read, the TCU is EXTREMELY sensitive to voltage.
I have to chat with the dealer and GMC, but I've had the truck less than 3 years, still have 8 months on my OnStar Subscription and infotainment is completely useless. I don't know how far it will go since I'm over 36,000 miles.
And they are looking at sunsetting Apple CarPlay and Android Auto...
This experience with your Sierra sounds frustrating and unlike the kind of time behind the wheel that we hope for our members, @ducatidesmo. We want to help in any ways we may be able to. Allow us to learn more about what you've encountered with your truck. Once connected, we can best explore opportunities for assistance and provide support alongside your local dealership while they address your OnStar module and any other concerns. Send us a private message to OnStar_Support with more details, including your full name, VIN, mileage, email, phone and dealership name/location. Just select the envelope at the top right of your screen to get started. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement.
I attempted to send messages which all have failed.
For awareness, we do not see a private message from you currently, @ducatidesmo. We regret to learn that you are having difficulties sending one. Please try one more time. If you continue to have troubles, kindly email us at socialmedia@gm.com with the previously requested details so we can look into things further with you. We will be watching to hear from you.