Buick 2013 Buick Regal, Owner'S Manual

Page: 225 / 422

Black plate (23,1)
Buick Regal Owner Manual - 2013 - CRC - 6/6/12
Driving and Operating 9-23
There are several conditions which
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
Dual Automatic Climate Control
System on page 8
‑ 1 The 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 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 MIL 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
maintain vehicle comfort. See
Dual Automatic Climate Control
System on page 8
‑ 1 . The
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
Dual
Automatic Climate Control
System on page 8
‑ 1 .
. The engine is required to run for
either heater or climate control
performance. See
Dual
Automatic Climate Control
System on page 8
‑ 1 .
. 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