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:
OnStar Mobile App
With an iPhone® or
Android™-based mobile device,
an OnStar mobile app can be
downloaded. The vehicle can be
remote started, if equipped, or the
doors can be unlocked from
anywhere there is ...
Selecting a Station
Seek Tuning
If the radio station is not known:
Briefly press or
.
The radio will search for the next
receivable station. If the radio does
not find a station, it switches
automatically to a ...
Comfort and convenience
One of the XLR's foremost convenience features is Keyless Access. Keyless
Access makes XLR a truly "keyless" car. A driver can simply keep the fob in a
pocket or purse to operate the doo ...