Jeep Grand Cherokee 2015, Operating Information Manual

Page: 261 / 878

CAUTION!
To prevent damage to the starter, wait 10 to
15 seconds before trying again.
After Starting
The idle speed is controlled automatically and it
will decrease as the engine warms up.
STOP/START SYSTEM — 3.2L
ENGINE
The Stop/Start function is developed to reduce
fuel consumption. The system will stop the
engine automatically during a vehicle stop if the
required conditions are met. Releasing the
brake pedal or pressing the accelerator pedal
will automatically re-start the engine.
Automatic Mode
The Stop/Start feature is enabled after every
normal customer engine start. At that time, the
system will go into STOP/START READY and if
all other conditions are met, can go into a
STOP/START AUTOSTOP ACTIVE “Autostop”
mode.
To Activate The Autostop Mode, The Follow-
ing Must Occur:
•
The system must be in STOP/START
READY state. A STOP/START READY mes-
sage will be displayed in the Electronic Ve-
hicle Information Center (EVIC) or Driver
Information Display (DID) within the Stop/
Start section. Refer to “Electronic Vehicle
Information Center (EVIC)” or “Driver Infor-
mation Display (DID)” in “Understanding Your
Instrument Panel” for further information.
•
The vehicle must be completely stopped.
•
The shifter must be in a forward gear and the
brake pedal depressed.
The engine will shut down, the tachometer will
move to the zero position and the Stop/Start
telltale will illuminate indicating you are in Au-
tostop. Customer settings will be maintained
upon return to an engine running condition.
Possible Reasons The Engine Does
Not Autostop
Prior to engine shut down, the system will check
many safety and comfort conditions to see if
they are fulfilled. Detailed information about the
operation of the Stop/Start system may be
viewed in the EVIC/DID Stop/Start Screen. In
the following situations the engine will not stop:
•
Driver’s seat belt is not buckled.
•
Driver’s door is not closed.
•
Battery temperature is too warm or cold.
•
Battery charge is low.
•
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.
•
HVAC set to MAX A/C.
•
Engine has not reached normal operating
temperature.
•
The transmission is not in a forward gear.
•
Hood is open.
•
Vehicle is in 4LO transfer case mode.
•
Brake pedal is not pressed with sufficient
pressure.
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