Forum Discussion
Telematic Control Module needs replacement, but backordered with no ETA?! UNACCEPTABLE
Same issue with my ‘22 Sierra. OTA’s have never worked, I’ve had to take into the dealer many times for them to do them. Having a complete telematics failure now, OnStar confirmed truck is offline and I’m paying for th connected plan. TCU seem to be a complete dud. We need a class action here.
Send us a private message with more details including your name, VIN, email, mileage and dealership at your earliest convenience, @Jr3660. We can imagine these concerns with your Sierra to be frustrating, and we would like to learn more about any ways we may offer support while your truck is addressed. Just select the envelope icon at the top right of your screen to start. 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: https://www.gm.com/privacy-statement.
Hi Brendan,
Thank you for reaching out. I have sent a private message and am also posting here without personal details.
I am experiencing a complete telematics failure on my 2022 GMC Sierra Denali 6.2L.
Symptoms:
- OnStar blue button unresponsive
- Vehicle Wi-Fi hotspot disabled and grayed out
- OnStar has confirmed the truck is offline
- OTA updates have never worked since ownership
- GPS and connected services not functioning
Troubleshooting completed:
- Vehicle sleep reset
- Battery disconnect reset
- Remote reset attempted by OnStar
The system remains non-functional and I am paying for connected services I cannot use. Based on troubleshooting this appears consistent with a telematics control module failure.
Mileage approximately 33000.
I am scheduled for dealer diagnosis tomorrow and wanted to see what support or guidance GM or OnStar may be able to provide.
Thank you.
Technical and Service Support *including as well
We are always a private message away, @Jr3660. Don't hesitate to reach out if we can do anything to further assist you.
Dealer confirmed telematics control module failure and needs replacing. 😕
We've responded to your private message but also wanted to touch base here. If you'd like to further discuss your concerns with our team, please feel free to reply to our private message at any time.