OnStar Customer Service
How to get in contact with OnStar
| Address | General Motors Holdings LLC OnStar Member Service P.O. Box 1027 MI 48090-1027 Warren |
| Phone number | 888 466 7827 |
| Website | https://www.onstar.com/ |
| Not available | |
| Chat | https://experience.gm.com/content/dam/experience-g... |
| Contact form | https://www.onstar.com/contact-us |
Get in contact with the OnStar customer service to take care of everything related to your contract. Have the information about your contract ready, like your contract number or customer number, so that OnStar can assign your call. You can manage things like your personal data yourself via the OnStar login.
OnStar Customer Service Number
Call 888 466 7827 to reach OnStar customer service number to speak with a representative.
OnStar Address
The OnStar customer service is also available by mail. Send your letter to the following postal address:
General Motors Holdings LLC, OnStar Member Service, P.O. Box 1027, MI 48090-1027 Warren
General Motors Holdings LLC, OnStar Member Service, P.O. Box 1027, MI 48090-1027 Warren
OnStar E-mail
The OnStar customer service is currently not available by email.
OnStar Chat
If you have any inquiries, you can chat with OnStar. Here's where you may enter the chat: https://experience.gm.com/content/dam/experience-g....
OnStar Contact Form
To contact OnStar, please the contact form on their website. The link to the contact form is as follows: https://www.onstar.com/contact-us
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Last Update: 01/25/2023
All information about OnStar customer service was researched by our staff from public sources, including the OnStar website. All information provided without warranty.