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:
Manual Rearview Mirror
Adjust the inside rearview mirror for a clear view of the area behind your vehicle. To avoid glare of the headlamps from behind, move the lever to the right for nighttime use and to the center for day ...
Instrument Panel
Instrument Panel
A. Air Vents on page 8‑12.
B. Windshield Wiper/Washer on page 5‑5.
C. Instrument Cluster on page 5‑12.
D. Head-Up Display (HUD) on page 5‑33 (If Equipp ...
Reading Lamps
Press the button near each lamp to turn them on or off. ...