Automatic Mode; Possible Reasons The Engine Does Not; Autostop - Jeep WRANGLER 2020 Owner's Manual

238 STARTING AND OPERATING

Automatic 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 your authorized
dealer.
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 5 mph (8 km/h). At that time,
the system will go into STOP/START READY and if
all other conditions are met, can go into an STOP/
START AUTO STOP ACTIVE mode.
To Activate The STOP/START AUTO STOP
ACTIVE 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. Refer to
"Instrument Cluster Display" in "Getting To
Know Your Instrument Panel" for further
information.
Vehicle speed must be less than 2 mph

(3 km/h).
The gear selector must be in the NEUTRAL

position and the clutch pedal must be fully
released
The engine will shut down, the tachometer will
fall to the Stop/Start position, the STOP/START
AUTO STOP ACTIVE message will appear, and
the heater/air conditioning (HVAC) air flow will
be reduced.

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. In following situations the
engine will not stop:
Driver's seat belt is not buckled.

Outside temperature is less than 10°F

(–12°C) or greater than 109°F (43°C).
Actual cabin temperature is significantly

different than temperature set on Auto HVAC.
HVAC is set to full defrost mode.

Engine has not reached normal operating

temperature.
Battery discharged.

When driving in REVERSE.

Hood is open.

Transfer case is in 4L or Neutral
