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:
Programming Transmitters to the Vehicle
Only keyless entry transmitters programmed to the vehicle will work.
If a transmitter is lost or stolen, a replacement can be purchased and
programmed through your dealer.
The vehicle can be re ...
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. ...
Low-Profile Tires
If the vehicle has P235/50R18,
245/45ZR19, P245/45R19,
255/40ZR19, P265/45R18,
275/40ZR19 or 285/35ZR19 size
tires, they are classified as
low–profile tires. These tires are
designed for v ...