Jeep 2018 WRANGLER, User Manual, Page: 156 / 336

• 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.
• Engine temperature too high.
• The transmission is not in a forward gear.
• Hood is open.
• Transfer case is in 4LO or Neutral.
• Brake pedal is not pressed with sufficient
pressure.
Other Factors Which Can Inhibit Autostop
Include:
• Accelerator pedal input.
• Vehicle speed threshold not achieved from
previous auto-stop.
• Steering angle beyond threshold. (Every
time the ECM requires the inhibition)
• ACC is on and speed is set.
• Vehicle is at high altitude.
• System fault present.
It may be possible for the vehicle to be driven
several times without the STOP/START sys-
tem going into a STOP/START READY state
under more extreme conditions of the items
listed above.
To Start The Engine While In Autostop Mode
While in a forward gear, the engine will start
when the brake pedal is released or the throttle
pedal is depressed. The transmission will au-
tomatically re-engage upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
• The transmission selector is moved out of
DRIVE.
• To maintain cabin temperature comfort.
• Actual cabin temperature is significantly dif-
ferent than temperature set on Auto HVAC.
• HVAC is set to full defrost mode.
• HVAC system temperature or fan speed is
manually adjusted.
• Battery voltage drops too low.
• Low brake vacuum (e.g. after several brake
pedal applications).
• STOP/START OFF switch is pushed.
• A STOP/START system error occurs.
• STOP/START AUTO STOP ACTIVE time ex-
ceeds 5 minutes.
• 4WD system is put into 4LO or Neutral
mode.
• Steering angle is turned beyond threshold.
(Every time the ECM requires the inhibition)
To Manually Turn Off The Stop/Start
System
1. Push the STOP/START OFF switch (lo-
cated on the switch bank). The light on
the switch will illuminate.
ST
ARTING
AND
OPERA
TING
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