2022 Jeep Wrangler Jump Starting User Manual
JUMP STARTING
If your vehicle has a discharged battery, it can be jump-started using a set of jumper cables and a battery in another vehicle, or by using a portable battery booster pack. Jump starting can be dangerous if done improperly, so please follow the procedures in this section carefully.
WARNING
Do not attempt jump-starting if the battery is frozen. It could rupture or explode and cause personal injury.
CAUTION
Do not use a portable battery booster pack or any other booster source with a system voltage greater than 12 Volts or damage to the battery, starter motor, alternator or electrical system may occur.
NOTE
When using a portable battery booster pack, follow the manufacturer’s operating instructions and precautions.
PREPARATIONS FOR JUMP START
WARNING
- Only use the positive battery post on the main battery to jump-start your vehicle. Serious injury or death could result if you attempt to jump start using the supplemental battery.
- Battery gas is flammable and explosive. Keep flame or sparks away from the battery. Do not use a booster battery or any other booster source with an output greater than 12 Volts. Do not allow cable clamps to touch each other Battery posts, terminals, and related accessories contain lead and lead compounds. Wash hands after handling.
- If a “fast charger” is used while the battery is in the vehicle, disconnect both vehicles’ battery cables before connecting the charger to the battery. Do not use a “fast charger” to provide starting.
The battery in your vehicle is located in the right rear of the engine compartment
NOTE
The positive (+) battery post is covered with a protective cap. Lift up on the cap to gain access to the post. If your vehicle is equipped with a Stop/Start system, it will be equipped with two batteries Ú page 165. See the following steps to prepare for jump-starting:
- Apply the parking brake, shift the automatic transmission into PARK (P) (manual transmission in NEUTRAL) and turn the ignition OFF.
- Turn off the heater, radio, and all electrical accessories.
- Pull upward and remove the protective cover over the positive (+) battery post.
- If using another vehicle to jump-start the battery, park the vehicle within the jumper cable’s reach, apply the parking brake and make sure the ignition is OFF.
WARNING
Do not allow vehicles to touch each other as this could establish a ground connection and personal injury could result.
WARNING
- Take care to avoid the radiator cooling fan whenever the hood is raised. It can start anytime the ignition switch is ON. You can be injured by moving fan blades.
- Remove any metal jewelry such as rings, watch bands and bracelets that could make an inadvertent electrical contact. You could be seriously injured.
- Batteries contain sulfuric acid that can burn your skin or eyes and generate hydrogen gas which is flammable and explosive. Keep open flames or sparks away from the battery.
JUMP STARTING PROCEDURE
WARNING
Failure to follow this jump starting procedure could result in personal injury or property damage due to a battery explosion.
CAUTION
Failure to follow these procedures could result in damage to the charging system of the booster vehicle or the discharged vehicle.
NOTE
Make sure at all times that unused ends of jumper cables are not contacting each other or either vehicle while making connections.
Connecting The Jumper Cables
- Connect the positive (+) end of the jumper cable to the 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.
- 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.
- Once the engine is started, remove the jumper cables in the reverse sequence.
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.
- Disconnect the positive (+) end of the jumper cable from the positive (+) post of the booster battery.
- Disconnect the opposite end of the positive (+) jumper cable from the positive (+) post of the discharged vehicle.
- Reinstall the protective cover over the 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.
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
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.
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.