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:
Playing Audio CD
When an audio CD is playing, the display shows the current track and the amount
of time that track has been playing, the total amount of time on the disc, and the
current time running on the disc. ...
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
- Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, ...
Rear Compartment Fuse
Block (CTS-V Wagon)
The rear compartment fuse block is
located on the passenger side of the
vehicle, behind the trim panel in the
rear compartment.
The vehicle may not be equipped
with all of the fuses and relay ...






