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:
Interior Mirrors
Automatic Dimming
Rearview Mirror
The vehicle has an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare of headlamps from
behind you.
If the vehicle has a rear vi ...
What to Use
Refer to Recommended Fluids and Lubricants to determine what kind
of lubricant to use. ...
Automatic Level Control
The automatic level control rear suspension is available on light-duty vehicles
and comes as a part of the Continuous Damping Control (CDC) suspension, if equipped.
This type of level control is fu ...