Air Vents
Use the louvers located on the air vents to change the direction of the airflow.
To open a vent, move the thumbwheel to | . To close the vent, move the thumbwheel to 
.
Operation Tips
► Keep all outlets open whenever possible for best system performance. ► Keep the paths under all seats clear of objects to help circulate the air inside the vehicle more effectively. ► Use of non-GM approved hood deflectors can adversely affect the performance of the systemSee also:
Automatic Transmission Shift Lock
The vehicle has an automatic transmission shift lock control system. The shift
lock control system is designed to:
. Prevent ignition key removal unless the shift lever is in P (Park).
. Prevent m ...
SERVICE BRAKE ASSIST
This message may be displayed
when there is a problem with the
brake boost assist system. When
this message is displayed, the brake
boost assist motor might be heard
operating and you might ...
Footnotes — Maintenance
Schedule Additional Required
Services — Severe
a) Or every two years, whichever
comes first.
b) Check all fuel and vapor lines
and hoses for proper hook-up,
routing, and condition. Check that
the purge valve, if the vehicle has
one, wor ...