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:
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed
to correct a condition. Multiple
messages may appear one after
another.
The messages that ...
Competitive Driving
Competitive driving may affect the
vehicle warranty. See the warranty
book before using the vehicle for
competitive driving.
Notice: If you use your vehicle
for competitive driving, the
eng ...
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85).
For all other vehicles, use only the unleaded gasolin ...






