Jeep Wrangler 2018-2025 Owners Manual / IN CASE OF EMERGENCY / JUMP STARTING / Jump Starting Procedure / Connecting The Jumper Cables

Jeep Wrangler: Jump Starting Procedure / 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.
Connect the negative end (-) of the jumper cable to the negative (-) post of the booster battery.
Connect the opposite end of the negative (-) jumper cable to a good engine ground. A “ground” is an exposed metallic/unpainted part of the engine, frame or chassis, such as an accessory bracket or large bolt. The ground must be away from the battery and the fuel injection system.
WARNING!

Do not connect the jumper cable to the negative (-) post of the discharged battery. The resulting electrical spark could cause the battery to explode and could result in personal injury.
Start the engine in the vehicle that has the booster battery, let the engine idle a few minutes, and then start the engine in the vehicle with the discharged battery.
CAUTION!

Do not run the booster vehicle engine above 2,000 RPM since it provides no charging benefit, wastes fuel, and can damage booster vehicle engine.
Once the engine is started, remove the jumper cables in the reverse sequence.

Jump Starting Procedure

WARNING! Failure to follow this jump starting procedure could result in personal injury or property damage due to battery explosion. CAUTION! Failure to follow these procedures could result in damage to the charging system of the booster vehicle or the discharged vehicle...

Disconnecting The Jumper Cables

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...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: Driving In Snow, Mud And Sand

Snow In heavy snow or for additional control and traction at slower speeds, shift the transmission into a low gear and the transfer case into 4WD Low if necessary. Do not shift to a lower gear than necessary to maintain headway. Over-revving the engine can spin the wheels and traction will be lost...

Jeep Wrangler 2018-2025 Owners Manual: Five-Position Transfer Case — If Equipped

Four-Wheel Drive Gear Selector The transfer case provides five mode positions: 2H (2WD High) — Two-Wheel Drive High Range 4H AUTO (4WD High AUTO) — Four-Wheel Drive Auto High Range 4H PT (4WD High PT) — Four-Wheel Drive Part Time High Range N (Neutral) 4L (4WD Low) — Four-Wheel Drive Low Range For additional information on the appropriate use of each transfer case mode position, see the information below: 2WD High Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads...

Remote Start system

Jeep Wrangler. Remote Start system This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of approximately 300 ft (91 m).