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:
Tire Pressure
Tire pressure is displayed in
the DIC for each tire in either
kilopascals (kPa) or pounds per
square inch (psi). Press the vehicle
information button until the DIC
displays Front Tire kPa (P ...
Trip/Fuel Information Menu Items
Press the MENU button on the turn signal lever until Trip/Fuel Information
Menu is displayed.
Use the thumbwheel to scroll through the following possible menu items:
- Trip
- Average Fuel Econ ...
Tow/Haul Mode
The vehicle has a Tow/Haul Mode. The Tow/Haul Mode adjusts the transmission shift
pattern to reduce shift cycling, providing increased performance, vehicle control,
and transmission cooling when ...