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ONSTAR AND CONNECTED SERVICES ONSTAR AND CONNECTED SERVICES

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REPAIR & SERVICE

Learn more about repairing your vehicle and how to schedule service with a GMC Certified Service dealer.

How to Use Diagnostic Alerts

Learn how to get real-time diagnostic* alerts about key vehicle systems like the engine, transmission and brakes.

How to Use Proactive Alerts

Enroll in Proactive Alerts to be notified about potential issues with your vehicle systems before they happen.

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NEED MORE HELP?

Submit a support request to get answers to your vehicle questions about over-the-air software updates, driving and safety features, Wi-Fi issues and more.

REQUEST SUPPORT

For information specific to your vehicle, please refer to your Owner’s Manual.