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:
Heated and Ventilated Seats
On vehicles with heated and ventilated seats, the
controls are located on the front doors and the ignition
must be on to use the feature.
: Press to heat the seat and
seatback.
: Press to he ...
Audio Steering Wheel Controls
If your vehicle has this feature, some audio
functions can be adjusted at the steering wheel.
They include the following:
(OnStar®/Mute): If your
vehicle has OnStar,
press this button to i ...
When It Is Time for New Tires
One way to tell when it
is time for new tires is
to check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining. Some
commercial ...