Buick LaCrosse Owner's Manual page 224

9-22 Driving and Operating
to OFF. If the driver door is opened
while in auto stop mode, a chime
will sound.
To restart the engine during auto
stop, release the brake pedal or
press the accelerator pedal. The
engine starts immediately. The
vehicle continues to run until the
next stop.
There are several conditions that
may prevent an auto stop or cause
an auto start.
The Engine Will Remain
Running When:
The engine, transmission,
or high voltage battery is not
warmed up yet.
The outside temperature is less
than 20°C ( 4°F).
The air conditioning or defrost
system need the compressor to
maintain vehicle comfort. See
it is outside, the shorter the time
before the engine is restarted to
provide cabin cooling. To
maximize fuel economy, use the
eco air conditioning mode.
The shift lever is in P (Park),
N (Neutral), R (Reverse),
or M (Manual Mode).
The high voltage battery pack
charge is low.
The hood is not fully closed.
Brake pedal pressure is low.
If the malfunction indicator lamp
is on, auto stop may be
prevented.
High humidity is detected.
The Engine Will Restart When:
The brake pedal is released.
The accelerator pedal is applied.
Shifting out of D (Drive) to any
other gear.
The air conditioning or defrost
system need the compressor to
The warmer
maintain vehicle comfort. See
warmer it is outside, the shorter
the time before the engine is
restarted to provide cabin
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
The engine is required to run for
either heater or climate control
performance. See
The high voltage battery pack
charge is low and requires
recharging.
Auto stop time is greater than
two minutes.
The hood is opened.
. The
.
.