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:
Automatic
Transmission
The shift lever is located on the
center console between the front
seats.
There are several different positions
for the shift lever.
P (Park): This position locks the
rear wheels. Use this ...
License Plate Lamp
(Wagon)
To replace one of these bulbs:
1. Open the liftgate. See Liftgate for more
information.
Passenger Side Shown, Driver Side Similar
2. Push the left end of the lamp
assembly toward the right.
...
Active Head Restraints
The vehicle has an active head
restraint system in the front seating
positions. These automatically tilt
forward to reduce the risk of neck
injury if the vehicle is hit from
behind. ...