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:
Making a Call
Radio with CD
1. Press the PHONE button twice.
2. Enter the character sequence.
See “Entering a Character Sequence” in Operation for more information.
3. Select Call to start dialing the numbe ...
Roof
Sunroof
A. Open or Close
B. Vent
On vehicles with a sunroof, the sunroof only operates when the ignition is in
the ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active.
S ...
Second Row Seats
On vehicles with a 60/40 split bench or buckets seats, the seatbacks can be folded
for additional cargo space, or the seats can be folded and tumbled for easy entry/exit
to the third row seats, if ...