STARTING AND OPERATING
159
FUEL SAVER TECHNOLOGY 5.7L ENGINES
ONLY — IF EQUIPPED
This feature offers improved fuel economy by
shutting off four of the engine's eight cylinders
during light load and cruise conditions. The system
is automatic with no driver inputs or additional
driving skills required.
NOTE:
This system may take some time to return to full
functionality after a battery disconnect.
STOP/START SYSTEM — IF EQUIPPED
The Stop/Start function is developed to save fuel
and reduce emissions. The system will stop the
engine automatically during a vehicle stop if the
required conditions are met. Releasing the brake
pedal or shifting out of DRIVE will automatically
restart the engine.
Vehicles equipped with eTorque contain a heavy
duty motor generator and an additional hybrid
electric battery to store energy from vehicle
deceleration for use on engine startup after a stop
as well as providing launch torque assist.
A
UTOSTOP
M
ODE
The Stop/Start feature is enabled after every
normal customer engine start. It will remain in
STOP/START NOT READY until you drive forward
with a vehicle speed greater than 2
mph (3
km/h).
At that time, the system will go into STOP/START
READY.
To Activate The Autostop Mode, The Following
Must Occur:
1. The system must be in STOP/START READY
state. A STOP/START READY message will be
displayed in the instrument cluster within the
2. The vehicle must be completely stopped.
3. The transmission gear selector must be in
DRIVE and the brake pedal pressed.
The engine will shut down, the tachometer will move
to the zero position and the stop/start telltale will
illuminate indicating you are in an Autostop. While
in an Autostop, the Climate Controls system may
automatically adjust airflow to maintain cabin
comfort. Customer settings will be maintained upon
return to an engine running condition.
P
OSSIBLE
R
EASONS
T
HE
E
NGINE
D
OES
N
OT
A
UTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if they
are fulfilled. In following situations, the engine will
not Autostop:
Driver’s seat belt is not buckled
Driver’s door is not closed
The vehicle is on a steep grade
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved
HVAC is set to full defrost mode at a high blower
speed
Engine has not reached normal operating
temperature
Engine temperature is too high
The battery is charging
The transmission is not in DRIVE
Hood is open
Transfer case is in 4WD LOW
TOW/HAUL mode is selected
Accelerator pedal input
Excessive 12 Volt loads
It may be possible to operate the vehicle several
consecutive times in extreme conditions and not
meet all criteria to enable an Autostop state.
T
O
S
TART
T
HE
E
NGINE
W
HILE
I
N
A
UTOSTOP
M
ODE
While in DRIVE, the engine will start when the
brake pedal is released or the throttle pedal is
pressed and the transmission will automatically
reengage upon engine restart.
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