Jeep Wrangler: Diesel Exhaust Fluid / Diesel Exhaust Fluid Storage

Diesel Exhaust Fluid (DEF) is considered a very stable product with a long shelf life. If DEF is kept in temperatures between 10° and 90°F (-12° and 32°C), it will last a minimum of one year.

DEF is subject to freezing at the lowest temperatures. For example, DEF may freeze at temperatures at or below 12°F (-11°C). The system has been designed to operate in this environment.

NOTE:

When working with DEF, it is important to know that:

  • Any containers or parts that come into contact with DEF must be DEF compatible (plastic or stainless steel). Copper, brass, aluminum, iron or non-stainless steel should be avoided as they are subject to corrosion by DEF.
  • If DEF is spilled, it should be wiped up completely.

    System Overview

    This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system and a Selective Catalytic Reduction (SCR) catalyst to meet the emission requirements...

    Adding Diesel Exhaust Fluid

    The DEF gauge (located on the instrument cluster display) will display the level of DEF remaining in the tank. NOTE: Driving conditions (altitude, vehicle speed, load, etc...

    Other information:

    Jeep Wrangler 2018-2025 Owners Manual: Cargo Carpet (Four Door Models)


    Remove the grommets under the rear seat (one left and one right). Pull the carpet out to the rear and open the carpet split around the seat belt attachment. Under Rear Seat Carpet Split Rear Carpet Remove the carpet under the load floor and the side support and then pull the carpet out...

    Jeep Wrangler 2018-2025 Owners Manual: Climate Voice Commands


    Adjust vehicle temperatures hands-free and keep everyone comfortable while you keep moving ahead. Push the VR button on the steering wheel. After the beep, say one of the following commands: “Set the driver temperature to 70 degrees” “Set the passenger temperature to 70 degrees” Did You Know: Voice Command for Climate may only be used to adjust the interior temperature of your vehicle...

    Categories

    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.

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