Onstar Customer Service

Customer Service Number

Area Contact
International 1-888-466-7827

About The Company:

OnStarOnstar is a sub division of General Motors (GM) and was formed in 1995 as a joint venture between GM and Hughes. The main aim of this subsidiary is to provide communication, vehicle security and diagnosis through remote systems specifically in United States, China and Canada.

It allows its customers to contact support in case of emergency. It also offers service to minimize the risk of property damage, critical injuries as a result of high speed chasing of stolen vehicles.  The company also offers discounts to its subscribers on anti-theft and low mileage insurance.

Company offers two best plans, the first one is Safe and Sound and the second plan is Directions and Connections to its users at affordable price. At present, company has more than six million customers worldwide. In case of emergency support all the Onstar service users can contact customer care by dialing a toll free number which is available for 24 x 7.

International Numbers:

Countries Contact
China 400-820-1188

Head Office:

Detroit, Michigan, USA

Mailing Address:

Onstar Subscriber Services,

P.O. Box 1027

Warren, MI, 48090-1027

Payments Address:


Onstar Subscription Center

P.O. Box 77000

Detroit, MI 48277-0246

Note:  For more information please log on to official website

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