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:
StabiliTrak® System
StabiliTrak assists with directional
control of the vehicle in difficult
driving conditions. The system turns
on automatically every time the
vehicle is started.
- To turn off both traction
...
Power Door Locks
The switches are located on the
front doors.
(Unlock): Press to unlock the
doors.
(Lock): Remove the key from
the ignition and press to lock the
doors. ...
ELECTRONIC KEY NOT
DETECTED
If the vehicle has the keyless
access system, this message
displays if the vehicle does
not detect the presence of a
transmitter when you have
attempted to start the vehicle or
a vehicle d ...