English and Metric Unit Conversion
To change the display units between English and metric units, see Driver Information Center (DIC) .
See also:
How OnStar Service Works
Push this blue button to connect to a specially trained OnStar Advisor to verify your account information and to answer questions.
Push this red emergency button to get priority help from specially ...
When It Is Time for New Tires
Various factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road conditions
influence when you need new tires.
One way to tell when it is
time for new tires is to ...
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule.
Tires are rotated to achieve a
uniform wear for all tires. The
first rotation is the most
important.
Any time ...
