Buick 2012 Regal Owner's Manual page 253

Vehicles with eAssist have an
automatic engine start/stop feature.
After the engine is started and has
reached operating temperature, the
auto stop feature may cause the
engine to turn off when the brakes
are applied and the vehicle comes
to a complete stop. The vehicle
may remain in auto stop for up to
two minutes. When the brake is
released or the accelerator pedal is
applied, the engine will start. The
engine will continue to run until the
next auto stop.
AUTO STOP on the tachometer
signifies that the engine is in auto
stop mode. See Tachometer on
page 5 11 for more information.
When the vehicle is turned off, the
tachometer will move 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 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).
Driving and Operating
The air conditioning or defrost
system need the compressor to
maintain vehicle comfort. See
Dual Automatic Climate Control
System on page 8 3 for more
information.
The shift lever is in P (Park),
N (Neutral), R (Reverse),
or M (Manual Mode).
The high voltage battery pack
charge is low.
The 12 volt vehicle battery
charge is low, or loads are high.
The hood is not fully closed.
Brake pedal pressure is high.
If the MIL is on, auto stop may
be prevented.
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