Jeep Wrangler: STOP/START SYSTEM — AUTOMATIC TRANSMISSION (IF EQUIPPED) / 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. 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.
- Hood is open.
- Transfer case is in 4WD Low or N (Neutral).
- Brake pedal is not pressed with sufficient
pressure.
- Accelerator pedal input.
- Vehicle speed threshold not achieved from
previous Autostop.
- Steering angle beyond threshold (ESS
Models Only).
- 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 system
going into a STOP/START READY state under
more extreme conditions of the items listed
above.
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...
While in a forward gear, the engine will start
when the brake pedal is released or the throttle
pedal is pressed. The transmission will
automatically re-engage upon engine restart...
Other information:
Two-Door Models:
There are tether strap
anchorages
behind each rear seating position
located on the back of the seat, near
the floor.
Tether Strap Anchorages (Two-Door Models)
Four-Door Models:
There are tether strap anchorages behind each
rear seating position located on the back of the
seat...
Disconnect the negative (-) end of the
jumper cable from the engine ground of
the vehicle with the discharged battery.
Disconnect the opposite end of the negative
(-) jumper cable from the negative (-) post of
the booster battery.
Disconnect the positive (+) end of the
jumper cable from the positive (+) post of
the booster battery...