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:
RKE without Remote Start Shown
(Unlock): Press to unlock the driver
door or all doors. See “Auto Door Unlock” under Vehicle Personalization .
The turn signal indicators may flash and/or the horn may sound to indicate unlo ...
Programming with a Recognized Transmitter (Keyless Access Vehicles Only)
A new transmitter can be programmed to the vehicle when there is one recognized
transmitter. To program, the vehicle must be off and all of the transmitters, both
currently recognized and new, mus ...
What Kind of Engine Oil to Use
Look for three things:
• GM6094M
Use only an oil that meets GM Standard GM6094M.
• SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers
on an oil container show its viscosity, or thi ...