OnStar Business Hours
If you want to connect with the OnStar customer service department, you can reach out by phone, email, through social media. Today, we will discuss about OnStar hours of operation that includes OnStar opening hours, closing, holiday hours and closing business hours.
OnStar Regular Business Hours
Weekdays: The customer service department is open 24 hours
Weekends: The customer service department is open 24 hours
And their automated telephone service is available 24/7.
| Store hours today | Opening Hours | Closing Hours |
| Monday | Open 24 Hours | Open 24 Hours |
| Tuesday | Open 24 Hours | Open 24 Hours |
| Wednesday | Open 24 Hours | Open 24 Hours |
| Thursday | Open 24 Hours | Open 24 Hours |
| Friday | Open 24 Hours | Open 24 Hours |
| Saturday | Open 24 Hours | Open 24 Hours |
| Sunday | Open 24 Hours | Open 24 Hours |
OnStar Holiday Hours
OnStar customer service is open on most public holidays. Our self serve functions are available 24/7.
Christmas Day and Easter Sunday: Closed
Public Holidays
Contact Information
Contact by phone
The helplines are open 24/7 hours
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
For additional information, please visit the OnStar website: onstar.com/us/en/home.
FAQs
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.
Other Ways to Contact OnStar
All Contacts of OnStar
OnStar Phone Number
OnStar Customer Service
Contact OnStar Through Social Media
OnStar Email Support
Help Pages Support
OnStar Corporate Office
Make Complaint to OnStar
Login in to OnStar