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:
Maintenance
Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part of routine ...
Twilight Sentinel
This feature automatically turns the lamps on and off. A light sensor on top
of the instrument panel makes the Twilight Sentinel® work, so be sure it is not
covered.
With Twilight Sentinel th ...
Under the Hood
Available only with rear-wheel drive, the 3.6-liter V-6 engine produces 255
horsepower and 252 pounds-feet of torque. Cadillac's 4.6-liter Northstar V-8
generates 320 hp and 315 pounds-feet of tor ...