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134
STARTING AND OPERATING
STOP/START SYSTEM — AUTOMATIC
TRANSMISSION (IF EQUIPPED)
The Engine Stop/Start (ESS) 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
restart the engine.
ESS vehicles have been upgraded with a heavy-duty
starter, enhanced battery, and other upgraded engine
parts, to handle the additional engine starts.
NOTE:
It is recommended that the Stop/Start system be dis-
abled during off-road use.
Secondary Battery
Your vehicle may be equipped with a secondary battery
used to power the Stop/Start system and the 12 Volt
vehicle electrical system. The secondary battery is
located behind the wheel well for the front passenger
wheel.
Battery Locations
1 — Primary Battery
2 — Secondary Battery
AUTOSTOP MODE
WARNING!
•
Vehicles with the Stop/Start system will be
equipped with two batteries. Both the main and
the supplemental batteries must be disconnected
to completely de-energize the 12 Volt electrical
system.
•
Serious injury or death could result if you do not
disconnect both batteries. To learn how to properly
disconnect, see an authorized dealer.
The Stop/Start feature is enabled after every normal
engine start. At that time, the system will go into STOP/
START READY.
To Activate The Autostop Mode, The Following Must
Occur:
•
The system must be in STOP/START READY state. A
STOP/START READY message will be displayed in
the instrument cluster display within the Stop/Start
section
page 100.
•
The vehicle must be completely stopped.
•
The gear selector must be in a forward gear and the
brake pedal pressed.
The engine will shut down, the tachometer will move to
the zero position and the Stop/Start telltale will illumi-
nate indicating you are in Autostop. 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 instrument cluster
display 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 accept-
able cabin temperature has not been achieved
•
HVAC is set to full defrost mode at a high blower
speed
•
HVAC is set to MAX A/C
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