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:
Exterior
The ATS looks good on the road. You never can tell for sure at an auto show,
where I thought the headlights were too slit-like, and I wasn't sure about the
hump in the trunk lid, accented as it is ...
Manual Rearview Mirror
Adjust the inside rearview mirror for a clear view of the area behind your
vehicle. To avoid glare of the headlamps from behind, push the tab forward for
daytime and pull it for nighttime use.
Ve ...
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See Tire Messages. Stop as soon as
po ...