Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Driving and Operating
181
.
Shifting out of D (Drive) to any
other gear.
.
The air conditioning or defrost
system need the compressor to
maintain interior comfort. See
Dual Automatic Climate Control
System
. The warmer it is
outside, the shorter the time
before the engine is restarted to
provide interior cooling. To
maximize fuel economy, use the
eco air conditioning mode.
.
The climate control system is
turned from off to normal air
conditioning or defrost. See
Automatic Climate Control
System
.
.
The engine is required to run for
either heater or climate control
performance. See
Automatic Climate Control
System
.
.
The high voltage battery pack
charge is low and requires
recharging.
.
Auto stop time is greater than
two minutes.
.
The hood is opened.
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below
−
18 °C (0 °F)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coolant heater at least
four hours before starting the
vehicle. An internal thermostat in
the plug end of the cord will prevent
engine coolant heater operation at
temperatures above
−
18 °C (0 °F).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord.
3.6L V6 Engine
The electrical cord is on the
driver side of the engine
compartment, between the
fender and the engine
compartment fuse block on
vehicles with a 6-cylinder
engine.