Forum Discussion
21 Camaro ZL1 OnStar Module Failure.. Self Replace?
Hello! The OnStar module in my 2021 Camaro ZL1 seems to have died. The buttons and lights on the overhead console for OnStar no longer work. The gauge cluster compass stopped working as well, my GPS shows a red circle with a slash through it on my infotainment center, and I can no longer connect to my car/start/stop/etc from the phone app.
I ran a code scanner on my car and found 2 codes:
- U0198 - Lost communication with telematic control module
- U183A - Lost communication with telematics communication interface control module on high speed CAN Bus.
I purchased a replacement OnStar/Telematics module and can easily swap it out without letting a dealer tech damage the interior of my car but need to know if I can just bring the module to the dealership for programming to my vehicle or if I need to install it and bring my car up and have them program it once installed or if OnStar themselves can update my account with the info on the new module box? Does anyone have any idea? Trying not to get scammed by the dealer wanting me to jump through 50 hoops and get hit with bogus "diagnostic" fees and other BS.
Thank you!
2 Replies
I wonder if disassembling the OnStar/Telemtrics module and pulling the radio daughter board and swapping it from the replacement module into my current module would resolve anything, lol...
We understand you are looking to obtain clarity on the course of correction for replacing the OnStar Telematics Module within your Camaro, Will. The dealership will be in the best position to help clarify your inquiry as they are trained in the identifying as well as performing potential repairs that may be recommended for your vehicle. With this, proceeding with diagnosis or service for any vehicle which has surpassed the time and/or mileage parameters of warranty may involve out-of-pocket costs. If you would like us to connect with a certified dealership to request an appointment and relay your inquiries, continue to communicate with us within the inbox. We will surely support to our best ability.