User Manual - Page 322

For 2021 JEEP GRAND CHEROKEE.

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320 IN CASE OF EMERGENCY
Connecting The Jumper Cables
Jumper Cable Connections
1. Connect the positive
(+) end of the jumper
cable to the remote positive (+)
post of the
discharged vehicle.
2. Connect the opposite end of the positive (+)
jumper cable to the positive (+) post of the
booster battery.
3. Connect the negative end (-) of the jumper
cable to the negative (-) post of the booster
battery.
4. 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.
5. 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.
6. Once the engine is started, follow the
disconnecting procedure below.
Disconnecting The Jumper Cables
1. Disconnect the negative
(-) end of the
jumper cable from the remote negative (-)
post of the discharged vehicle.
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.
If frequent jump starting is required to start your
vehicle 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.
21_WK_OM_EN_USC_t.book Page 320
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