Buick LaCrosse Owner's Manual page 196

1. Power
2. Driver Temperature Control
3. Defrost
4. Fan Control
5. Air Delivery Mode Control
6. Recirculation/Automatic
Recirculation
7. Passenger Temperature Control
8. AUTO (Automatic Operation)
9. Rear Window Defogger
10. Eco Air Conditioning
11. Comfort Air Conditioning
12. ZONE
The climate control system is
dependent upon other vehicle
systems for heat and power input.
Certain climate control settings can
lead to higher fuel usage and/or
fewer auto stops.
The following are climate control
settings that use more fuel:
Comfort air conditioning mode.
The Defrost mode.
Extreme temperature settings,
such as 15°C (60°F) or 32°C
(90°F).
High fan speed settings.
To help reduce fuel usage:
Use the full automatic control as
described under Automatic
Operation .
Use eco air conditioning, instead
of the comfort air conditioning.
Select a temperature setting that
is higher in hot weather and
lower in cold weather.
Turn off the air conditioning
when it is not needed.
Only use defrost to clear the
windows.