Jeep Wrangler: STOP/START SYSTEM — MANUAL TRANSMISSION (IF EQUIPPED) / To Start The Engine While In Autostop Mode
When the gear selector is in NEUTRAL, the engine will start when the clutch pedal is pressed (does not require complete/full pedal press). The vehicle will go into STOP/START SYSTEM NOT READY mode until the vehicle speed is greater than 5 mph (8 km/h).
Conditions that will cause the engine to start automatically while in STOP/START AUTO STOP ACTIVE mode
The Engine Will Start Automatically When:
- Actual cabin temperature is significantly different than temperature set on Auto HVAC.
- HVAC is set to full defrost mode.
- HVAC system temperature or fan speed is manually adjusted higher.
- STOP/START AUTO STOP ACTIVE time exceeds 5 minutes.
- Battery voltage drops too low.
- Vehicle is moving faster than 5 mph (8 km/h).
- STOP/START OFF switch is pressed.
- Transfer case is in 4WD Low or N (Neutral).
- Steering wheel is turned beyond threshold (ESS Models Only).
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...
To Manually Turn Off The Stop/Start System
Push the Stop/Start OFF switch (located on
the switch bank). The light on the switch
will illuminate.
Stop/Start OFF Switch
The STOP/START OFF message will appear
in the instrument cluster...
Other information:
Jeep Wrangler 2018-2026 Owners Manual: Diesel Fuel Specifications
This diesel engine has been developed to take advantage of the high energy content and generally lower cost No. 2 Ultra Low Sulfur diesel fuel or No. 2 Ultra Low Sulfur climatized diesel fuels. NOTE: If you accidentally fill the fuel tank with gasoline on your diesel vehicle, do not start the engine...
Jeep Wrangler 2018-2026 Owners Manual: Battery Saver On/Battery Saver Mode Message — Electrical Load Reduction Actions — If Equipped
This vehicle is equipped with an Intelligent Battery Sensor (IBS) to perform additional monitoring of the electrical system and status of the vehicle battery. In cases when the IBS detects charging system failure, or the vehicle battery conditions are deteriorating, electrical load reduction actions will take place to extend the driving time and distance of the vehicle...
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Automatic Headlights — If Equipped, Lights-On Reminder
Automatic Headlights
This system automatically turns the headlights on or off according to ambient light levels. To turn the system on, rotate the headlight switch clockwise to the last detent for automatic headlight operation. When the system is on, the headlight time delay feature is also on. This means the headlights will stay on for up to 90 seconds after you place the ignition into the OFF position. To turn the automatic system off, move the headlight switch out of the AUTO position.
