Lexus 2003 LS Owner's Manual page 641

Rear Air Conditioning Controls
(b) Rear cooling
1. Turn the front air conditioning on. The rear
cooler will not turn on if the front air condition-
ing is off.
2. Turn the rear air conditioning on. The fan
speed and rear cooler are adjusted automat-
ically.
3. Use "Manual" or "LO HI A/C" buttons to
adjust the desired fan speed and the rear
cooler. Each indicator light shows which
mode is now selected.
126
(c) Air purification
The air purifier operates whenever the rear
fan operation is on, regardless of front air
conditioning activation.
21L160
"AUTO" "Manual"
Push the or
for the rear fan speed controls to operate the
air purifier.
(d) Rear air filter
21L091
Replace the air filter when the use of rear air
conditioning or air purification function re-
duces air flow or deodorant performance.
switch