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:
Ignition Positions
The ignition switch has four different positions.
To shift out of P (Park), the ignition must be in ON/RUN or ACC/ ACCESSORY and
the regular brake pedal must be applied.
A (STOPPING THE ENGINE/ ...
Safety
Standard features include antilock brakes, side-impact airbags for the front
seats, side curtain airbags, an electronic stability system, and a tire pressure
monitoring system. For a full list of ...
Voice Recognition
The voice recognition system uses commands to control the system and dial
phone numbers.
Noise: The system may not recognize voice commands if there is too much
background noise.
When to Speak ...