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Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./
Canada-9761994) - 2016 - CRC - 2/22/16
20
Driving and Operating
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 needs the compressor to
maintain interior comfort. See
Dual Automatic Climate Control
System
. When it is very
warm or humid, the system may
not be able to shut the engine off
while maintaining interior
comfort. 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.
.
The malfunction indicator lamp
is on.
.
High humidity is detected.
.
The Tow Haul Mode is enabled.
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 needs 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.