User Manual - Page 166

For 2021 WRANGLER.

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164 STARTING AND OPERATING
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
AUTOSTOP MODE
The Stop/Start feature is enabled after every
driver ignition 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 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 Ú page 111.
The vehicle must be completely stopped.
The shifter must be in a forward gear and the
brake pedal pressed.
POSSIBLE REASONS THE ENGINE DOES
N
OT 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. Situations when the engine will
not stop include (but not limited to):
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.
Gear selector in MANUAL (M) mode.
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.
Engine temperature too high.
The transmission is not in a forward gear.
1 — Primary Battery
2 — Secondary Battery
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.
21_JL_OM_EN_USC_t.book Page 164
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