OnStar Support

🚨 We’re working closely with our dealership service teams to support needed repairs for any customer experiencing issues with the telematics control processor. We know this can take time, and we appreciate your patience.

If you’re experiencing issues with your telematics control processor, please message us privately at OnStar_Support so we can directly assist you with the information available to our team. Your local dealer can provide the most current information regarding diagnostics, repairs, and part availability.