Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL® engine coolant.
This coolant is designed to remain in the vehicle for 5 years or 240 000 km
(150,000 mi), whichever occurs first.
The fo ...
Service Vehicle Messages
SERVICE AC SYSTEM
This message is displayed if there is a problem with the air conditioning
system. Take the vehicle to your dealer for service.
SERVICE POWER STEERING
This message is displa ...
If the On Indicator Is Lit for a Child Restraint
If a child restraint has been installed and the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such ...






