You, your passenger, or a passer-by need immediate medical assistance? Just press the SOS button and an OnStar advisor will assist you.
Your OnStar advisor will use GPS to provide your exact location to the emergency medical service, who will set out for your location as quickly as possible.
1 1 The OnStar Services require activation and are subject to mobile network and GPS coverage and availability. Charges apply after the free trial period. The OnStar subscription packages could be different from the services included in the free trial package. Some features may not be available for certain carlines or trim levels. Terms and conditions apply.