Chevrolet TrailBlazer 2003 Manual page 148

TrailBlazer EXT
To operate the rear air conditioning system, the front air
conditioning system must be on. With the front air
conditioning system off, the rear system controls can
only be used to circulate air in the rear of the vehicle.
To adjust the airflow speed, turn the fan knob (driver
override switch), located on the floor console to 1, 2 or
3. The rear mode and temperature position will now
mimic the front control system mode and passenger side
temperature.
TrailBlazer EXT
H
(Panel): When panel mode is selected in the front
controller, the rear system will distribute air from the four
headliner outlets.
3-30
)
(Bi-level): When bi-level mode is selected in the
front controller, the rear system will distribute air from the
four headliner outlets and the third seat floor outlet.
6
(Floor): When floor mode is selected in the front
controller, the rear system will distribute air from the third
seat floor outlet.
-
(Defog): When defog mode is selected in the front
controller, the rear system will distribute air from the
third seat floor outlet.
0
(Defrost): When defrost mode is selected in the
front controller, the rear system will distribute air
from the third seat floor outlet.
To activate the second row seat controls in the following
systems, set the fan knob, located on the front
console, to R.