Special Application Services
- Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
- Have underbody flushing service performed once a year.
See also:
What to Use
When windshield washer fluid is needed, be sure to read the manufacturer's instructions
before use. If operating the vehicle in an area where the temperature may fall below
freezing, use a flu ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the v ...
Playing the Radio
PWR (Power): Push this knob to turn the system
on and off.
VOLUME
: Turn this knob clockwise or
counterclockwise to increase or to decrease
the volume.
INFO (Information): When the ignition is ...