Jeep Wrangler: STOP/START SYSTEM — MANUAL 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. Situations when the engine will not stop include (but not limited to):

• 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 4WD Low or N (Neutral).
• Driver's seat is not occupied or driver’s door is open.
• Vehicle is at high altitude.
• The vehicle is on a steep grade.
• Forward Gear is engaged.
• Steering angle beyond threshold. (ESS Models Only).
• System fault is present.
• HVAC set to MAX A/C.

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.