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Find the phone number and other contact information for GM vehicle brands, such as Chevrolet, Buick, GMC and Cadillac. You can also access My GM Account, OnStar Support, Certified Service and more.
If you have issues with your GM vehicle, you can contact GM customer service via phone or messaging. GM will help you with warranty, repair and lemon law concerns and earn your trust and confidence.
Read and learn instructions, tips and information for your GM vehicle and available support services.
My GM Rewards is a free membership program that lets you earn and redeem points on most things you do with GM, whether you are a current owner, lessee or non-GM vehicle customer. You can move up through three tiers and enjoy exclusive benefits, special offers, and discounts on eligible GM products and services.
Find help for your GM vehicle, including manuals, guides, service, accessories, parts and more. Contact GM specialists or follow GM on social media for the latest news and updates.
For your security, please don’t include personal info such as phone number, address or credit card details. Need more help? Communicate with one of our specialists.
This web page does not provide a phone number for OnStar, but offers various services and features for OnStar users. You can learn how to set up and manage Wi-Fi Hotspot, request Roadside Assistance, access OnStar Community, and more.
Explore the latest from GM's legendary brands, including Chevrolet, Buick, GMC and Cadillac. Find information on vehicle shopping, service, support, rewards and more at Experience GM.
Learn how to apply for, earn, redeem and manage the My GM Rewards Mastercard, a credit card that offers exclusive benefits with the My GM Rewards program. To access your credit card account, visit Marcus.com or link your card to your My GM Rewards account.
My GM Rewards is a free program that lets you earn points for most things you do with GM, such as buying or leasing a vehicle, using OnStar or GM Financial. To enroll, you need to create a My GM Rewards account with your My Account credentials and accept the program terms and conditions.