Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Lumbar Adjustment
To adjust the lumbar support:
Press and hold the front or rear of the control to increase or decrease
lumbar support.
Press and hold the top or bottom of the control to raise or lower the
...
Steering Wheel Controls
Some audio steering wheel
controls could differ depending
on the vehicle's options.
Controls that can be adjusted at the
steering wheel may include:
SRCE: Press to switch between
AM, FM, o ...
Ignition Positions
(Key Access)
The ignition switch can be turned to
four different positions.
To shift out of P (Park), the ignition
switch must be in ON/RUN or
ACC/ACCESSORY and the brake
pedal must be applied.
Notice: ...