Jeep Wrangler: Jump Starting Procedure / Disconnecting The Jumper Cables

  1. Disconnect the negative (-) end of the jumper cable from the engine ground of the vehicle with the discharged battery.
  2. Disconnect the opposite end of the negative (-) jumper cable from the negative (-) post of the booster battery.
  3. Disconnect the positive (+) end of the jumper cable from the positive (+) post of the booster battery.
  4. Disconnect the opposite end of the positive (+) jumper cable from the remote positive (+) post of the discharged vehicle.
  5. Reinstall the protective cover over the remote positive (+) post of the discharged vehicle.

NOTE:

If frequent jump starting is required to start your vehicle you should have the battery and charging system tested at an authorized dealer.

CAUTION!

Accessories plugged into the vehicle power outlets draw power from the vehicle’s battery, even when not in use (i.e., cellular devices, etc.). Eventually, if plugged in long enough without engine operation, the vehicle’s battery will discharge sufficiently to degrade battery life and/or prevent the engine from starting.

    Connecting The Jumper Cables

    Connect the positive (+) end of the jumper cable to the remote positive (+) post of the discharged vehicle. Connect the opposite end of the positive (+) jumper cable to the positive (+) post of the booster battery...

    IF YOUR ENGINE OVERHEATS

    If the vehicle is overheating, it will need to be serviced by an authorized dealer. In any of the following situations, you can reduce the potential for overheating by taking the appropriate action...

    Other information:

    Jeep Wrangler 2018-2025 Owners Manual: The Basics Of Off-Road Driving


    You will encounter many types of terrain driving off-road. You should be familiar with the terrain and area before proceeding. There are many types of surface conditions: hard-packed dirt, gravel, rocks, grass, sand, mud, snow and ice. Every surface has a different effect on your vehicle's steering, handling and traction...

    Jeep Wrangler 2018-2025 Owners Manual: SCHEDULED SERVICING — DIESEL ENGINE


    Your vehicle is equipped with an automatic oil change indicator system. The oil change indicator system will remind you that it is time to take your vehicle in for scheduled maintenance. Based on engine operation conditions, the oil change indicator message will illuminate...

    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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