Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month.
Replace the tire if:
► The indicators at three or more places around the tire can be seen. ► There is cord or fabric showing through the tire's rubber. ► The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric. ► The tire has a bump, bulge, or split. ► The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.See also:
Hill and Mountain Roads
Driving on steep hills or mountains is different
from driving in flat or rolling terrain.
If you drive regularly in steep country, or if you are
planning to visit there, here are some tips that
...
How OnStar Service Works
: This blue button connects you
to a specially
trained OnStar advisor to verify your account information
and to answer questions.
: Push this red emergency button to
get priority help
fro ...
Store a Name Tag for Speed
Dialing
1. Push . System responds:
“OnStar ready.”.
2. Say “Store.” System responds:
“Please say the number you
would like to store.”.
3. Say the entire number without
pausing. System resp ...