HOW CAN WE HELP?
PLANS AND SERVICES
Managing your OnStar and Connected Services plans, SiriusXM account, and helpful tips if you’re having issues.
MY GMC REWARDS
Information on program enrollment, earning and redeeming points, program tiers and the My GMC Rewards Card.
ABOUT YOUR WARRANTY
Learn how to check the status of your vehicle warranties, the differences between a powertrain and bumper-to-bumper warranty, and details about Roadside Assistance.