Unable to Connect to OnStar Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push 
to try the
call again or try again after driving a
few miles into another cellular area.
See also:
Selective Ride Control
The vehicle may have a ride control system called Selective Ride Control.
The setting can be changed at any time. Based on road conditions, steering
wheel angle, and the vehicle speed, the system au ...
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 ...
Selecting the Right Engine Oil
Selecting the right engine oil depends on both the proper oil specification
and viscosity grade.
See Recommended Fluids and Lubricants.
Specification
Use and ask for licensed engine oils wit ...