2020 GMC Terrain

Thank you for providing us with these details, Lisa. Please know, if the LED light near your OnStar hardware is read, it could mean that your vehicle is not currently connected to services. We highly recommend visiting your certified GMC dealership for a module diagnostic moving forward. Because our service centers are technically trained, and have direct access to your vehicle, they are in the best position to provide you with any additional details related to your hardware. If you would like any assistance with dealer communications moving forward, send us a private message. Just select the envelope icon at the top right of your screen to get started. When creating a new message, please be sure to enter Advisor_Helen to get connected directly to me.