Adjustable air vents are in the center and on the side of the instrument panel.

Move the slats (1) to change the direction of the airflow.
Use the thumbwheels (2) near the air vents to open or close off the airflow.
Additional air vents are located beneath the windshield, driver and passenger side door windows, and in the footwells. These are fixed and cannot be adjusted.
Operation Tips
• Clear away any ice, snow, or leaves from air inlets at the base of the windshield that could block the flow of air into the vehicle.
• Keep the path under the front seats clear of objects to help circulate the air inside of the vehicle more effectively.
• Use of non-GM approved hood deflectors can adversely affect the performance of the system.
Check with your dealer before adding equipment to the outside of the vehicle.
Climate Control Systems
MaintenanceExterior Lighting
The exterior lamp control is to the left of the steering column on the instrument
panel.
: Briefly turn to this position
to turn the automatic lamp control off or on again.
AUTO: Turns the headlamps on automatically at normal brightness, together with
the parking lamps, taillamps, license ...
Installation Procedure
Install the following components on the drivetrain and front suspension
frame if removed:
The radiator support brackets.
The stabilizer shaft--Refer to Stabilizer Shaft Replacement.
The lower control arms--Refer to Lower Control Arm Replacement.
The steering gear--Refer to Steering ...
Test Probe Caution
Caution: Do not insert test equipment probes (DMM etc.) into any
connector or fuse block terminal. The diameter of the test probes will
deform most terminals. A deformed terminal will cause a poor connection, which
will result in a system failure. Always use the EL-35616
GM-Approved Terminal T ...