2020 Jeep Grand Cherokee Owner’s 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.

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NOTE:

When using a portable battery booster pack, follow the manufacturer's operating instructions and precautions.

The battery in your vehicle is located under the passenger's front seat. There are remote terminals located under the hood to assist in jump starting.

Jump Starting Locations

(+) — Remote Positive Post (Covered With Protective Cap) (-) — Remote Negative Post

Under Hood Jump Starting Location

NOTE:

Be sure that the disconnected cable ends do not touch each other, or either vehicle, until properly connected for jump starting.

Apply the parking brake, shift the automatic transmis- sion into PARK (P) and turn the ignition OFF.

Turn off the heater, radio, and all unnecessary electrical accessories.

Remove the protective cover over the remote positive (+)

battery post. Pull upward on the cover to remove it.

If using another vehicle to jump start the battery, park the vehicle within the jumper cables reach, apply the parking brake and make sure the ignition is OFF.

NOTE: 6

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 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 the remote negative (-) post of the vehicle with the discharged battery.

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 remote negative (-) post of the discharged vehicle.

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 remote positive (+) post of the discharged vehicle.

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Reinstall the protective cover over the remote positive (+)

post of the discharged vehicle.

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