Cleaning Exterior Lamps/Lenses
Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing Your Vehicle.
See also:
Air Quality Sensor
This will allow you to select whether
the system will operate at high or
low sensitivity. Only vehicles with
the dual zone climate control will
have this option.
Press SELECT when Air Quality ...
Roadside Assistance Program
For U.S. purchased vehicles, call 1-800-252-1112;
(Text Telephone (TTY): 1-888-889-2438).
For Canadian purchased vehicles, call 1-800-268-6800.
Service is available 24 hours a day, 365 days a year ...
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 ...