If you need to speak to a live customer service representative in OnStar customer service you need to dial 1-888-466-7827. To speak with a live agent, you need to stay on the line (typical waiting time is about 5-10 minutes).
Alternatively you can use the following other options available in the customer service phone menu:
- For emergencies, roadside assistance, door unlocked or stolen vehicle missing person press 1.
- For service plan maintenance including purchase data plans and free calling minutes or to renew your service plan billing and cancellation inquiries press 2.
- For technical assistance press 3.
OnStar Customer Service Hours
Live customer service representatives from OnStar are available 24/7.
OnStar Customer Support Phones
- OnStar Customer Support Phone is 1-888-466-7827. Live customer service representatives from OnStar are available 24/7.
- For TTY for Hearing/Speech Impaired you need to dial 1-877-248-2080.
OnStar Social Networks Customer Service
- OnStar customer service could be contacted via OnStar Facebook page. Typically OnStar customer service representative replies within an hour.
- You can also reach OnStar support via OnStar Twitter page
- You can view latest OnStar photos on OnStar Instagram page
- You can view latest OnStar videos on OnStar Youtube page
OnStar Mailing Addresses
OnStar Member Services:
PO Box 1027
Warren, MI 48090-1027
OnStar Service Plan Center
PO Box 77000
Detroit, MI 48277-0246
OnStar Live Chat Support
OnStar doesn’t offer live chat support. The best way to contact OnStar is to call them at 1-888-466-7827.
OnStar support e-mail
OnStar doesn’t offer live support via e-mail.
OnStar Help Center
- You can get more information about OnStar Customers on the OnStar Customers Support page.
OnStar Opening Hours