GMC SUPPORT

Instructions and tips for your vehicle and information on available support services.

HOW CAN WE HELP?

Charging my Electric Vehicle (EV)

How do I connect with Bluetooth?

What’s covered under warranty?

Is there a recall on my vehicle?

Can I download manuals and guides?

Explore key features available in your HUMMER EV or Sierra EV.

Vehicle Support

VEHICLE SUPPORT

Information, tips and how-to instructions for the features on your vehicle.

OnStar and Connected Services Support

ONSTAR

Learn about OnStar safety services^† and features.

Account Support

ACCOUNT SUPPORT

Instructions and information about your General Motors Accounts.

Shopping Support

SHOPPING SUPPORT

Navigating through the shopping experience for vehicles, OnStar and more.

RECALLS

How to check for open recalls and what to do if your vehicle is recalled.

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DEALERSHIP SERVICE SUPPORT

Information on visiting the dealership and scheduling service, roadside assistance, parts warranties, and service rebates.

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ABOUT GM

Information about General Motors.

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NEED MORE HELP OR HAVE FEEDBACK?

Communicate with one of our specialists.

CONTACT US