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:
Replacement Bulbs
For replacement bulbs not listed here, contact your dealer. ...
Additional Program
Information
All program options, such as shuttle
service, may not be available at
every dealer. Please contact your
dealer for specific information
about availability. All Courtesy
Transportation arrang ...
Care of CDs and DVDs
Sound quality can be reduced due
to disc quality, recording method,
quality of the music recorded, and
how the disc has been handled.
Handle discs carefully and store
them in their original c ...