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:
SERVICE BRAKE SYSTEM
This message displays, while the
ignition is on, when the brake fluid
level is low. The brake system
warning light on the instrument
panel cluster also comes on.
See Brake System Warning Ligh ...
Engine Coolant
The cooling system in the vehicle
for all engines and the intercooler is
filled with DEX-COOL®. This coolant
is designed to remain in the
vehicle for 5 years or 240 000 km
(150,000 mi), whic ...
Radio(s)
VOL/ : Press to turn the system on and off. Turn to increase or decrease
the volume.
RADIO/BAND: Press to choose between FM, AM, or XM™, if equipped.
TUNE or TUNE/INFO: Turn to select radio sta ...