OnStar Email Support

OnStar Email support is available @ contactus@onstar.com. You can use it to solve your general problem like cancel service, account, etc.

Average reply time: (8 hours)

Why do customers write email to OnStar
  • Account Access
  • Special Assistance
  • Payments
  • Cancel Account
  • Transfer an account
  • Emergency Services
  • Plans & Pricing
  • Locked Out of Vehicle

Contact OnStar Customer Service – contactus@onstar.com

Send an email to OnStar customer support at contactus@onstar.com

Compose an email that includes all of the important information, such as Account information, Plans and Pricing, Service Problem and your contact information. Explain the issue in as much detail as possible and wait for a response from OnStar customer service department.

To make process simple, fast and efficient, explain your problem in great details & include any reference or screenshot if you have regarding OnStar Customer Support.

As an alternative, you can email OnStar customer service at one of the support email addresses given below.

OnStar Customer Servicecontactus@onstar.com

OnStar Customer Email Support

Email addresscontactus@onstar.com
Mailing DepartmentOnStar Customer Service
Customer service hours24 hours, 7 days
Is Call-back availableNo
Normal response timeWithin 3 Days
Alternate methodsphone, web, chat, help pages
Quality of help87%
Best phone number1.888.466.7827

Contacting OnStar – by Email or otherwise

Even though contactus@onstar.com is OnStar’s great customer service tool, you will find 9 complete ways of getting in contact with them.

Apart from email, the upcoming favorite alternative for customers searching for assistance is through Phone number support for OnStar .

If you feel this information is wrong or know of other ways to get OnStar , please let us know so we can discuss with other consumers.

Head Office Address

Corporate Head office address of OnStar .

400 Renaissance Center Detroit, MI 48265

For any general inquiries, please contact OnStar head office number : (248)588-6050

Reference Link



Why is OnStar being discontinued?
The reason for this change is the upgrade of cellular carriers from a 2G network to a 4G or 5G connectivity. As older GM vehicles use a 2G connection, these cars will lose their in-car OnStar services. In the US, most major network providers will complete the transition from the 2G network in December 2022.

What services do I get with OnStar?
Welcome to OnStar. Where you can get Roadside Assistance* or navigation when you need it, Emergency Services* 24/7, and a vehicle mobile app* that connects you to your car from anywhere. You’ll even discover hands-free driving with Super CruiseTM* and OnStar Smart Driver* to help you boost your safe driving skills.

Can I get OnStar for free?
Here’s how: It starts with your free 30-day OnStar® trial. You’re going to love the experience. So during that 30 days, choose a monthly renewing plan. When you do, the next two months of that plan are complimentary for eligible vehicles* — it will start right after your 1-month trial ends.

Is OnStar exclusive to GM?
Since 2014 OnStar offers LTE Wi-Fi service on select GM cars. Starting June 14, 2021, the OnStar Guardian app was made available to any driver in the United States or Canada.

Hopefully, We helped you to get some genuine contact emails for OnStar Customer Service.

More Ways to Contact OnStar

All Contacts of OnStar
OnStar Phone Number
Contact OnStar Through Social Media
OnStar Customer Service
Help Pages Support
OnStar Corporate Office
OnStar Hours
Make Complaint to OnStar
Login in to OnStar

OnStar Customer Reviews

Average rating:  
 1 reviews
 by jolly on OnStar

My cell phone and banking information was stolen by an employee who was working with me. I had no way to contact my bank so
I figured Onstar. Could help. Thankfully Kevin at Onstar helped me. Thank you so much