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:
Engine Overheating
This emergency operating mode allows the vehicle to be driven to a safe place
in an emergency situation. If an overheated engine condition exists, an overheat
protection mode which alternates firi ...
Other Navigation Services
Available from OnStar
OnStar eNav: Allows subscribers
to send destinations from Google
Maps™ and MapQuest.com to their
Turn-by-Turn Navigation or
screen-based navigation system.
When ready, the directions will b ...
Radio Menus (Radio with CD and Touchscreen)
Tone Menu
To access the sound menu, press the TONE button.
Use the sound menu to adjust the following features:
Bass
Middle
Treble
EQ
Fade
Balance
Setting the Tone
To adjust the ba ...