09-07-2024 04:33 AM
I had an after market remote start (Viper) installed on my 2020 Colorado, now On Star cannot run diagnostics. I can run the diagnostics from my phone app. But the monthly On Star diagnostics says an after market device is installed. Do I need to have the system re-mapped?
a month ago
Thank you for providing this information. To further clarify, is the LED light near your OnStar hardware red or green? If this light is red, a visit to your certified GM dealership might be required. Moving forward, we do recommend pushing your blue OnStar button to create an active connection to your vehicle. If you have any trouble with this, or have any questions after speaking with a live Advisor, kindly let us know.