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:
Keyless Locking
If the vehicle has the keyless
access system, this feature allows
you to select whether the doors
automatically lock during normal
vehicle exit. When the ignition is
turned off and all doors ...
Reading Lamps
There are reading lamps located on the overhead console and over the rear
passenger doors. These lamps come on automatically when any door is opened.
To manually turn the reading lamps on or off:
...
Armrest Storage
For vehicles with a rear seat armrest, pull the rear seat armrest forward to
access cupholders with removable liners. For vehicles with a rear storage area,
pull the lever to access. ...