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:
Radio Reception
Frequency interference and static can occur during
normal radio reception if items such as cell phone
chargers, vehicle convenience accessories, and external
electronic devices are plugged into ...
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below −18°C (0°F)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coo ...
Listing All Paired and Connected Phones
1. Press and hold for two
seconds. The
system responds with “Ready” followed by a tone.
2. Say “Bluetooth”. The system responds with
“Bluetooth ready” followed by a tone.
3. Say ...