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:
Ignition Positions
The ignition switch has four different positions.
To shift out of P (Park), the ignition must be in ON/RUN or ACC/ ACCESSORY and the regular brake pedal must be applied.
A (STOPPING THE ENGINE/ LO ...
Increasing Speed While Using Cruise Control
If the cruise control system is already activated:
• Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it.
• To increase vehicle speed in smal ...
Tire Messages
SERVICE TIRE MONITOR SYSTEM
This message displays if there is a problem with the Tire Pressure Monitor System
(TPMS). See Tire Pressure Monitor Operation on page 10‑54 for more information.
...