Jeep 2015 Wrangler - User Guide - Manual (Page 122)

Jump-Starting Procedure
1. Connect the positive (+) end of the jumper cable to the positive (+) post of the
vehicle with the discharged battery.
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
(exposed metal part of the discharged vehicle’s engine) 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.
Once the engine is started, remove the jumper cables in the reverse sequence:
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 positive (+)
post of the vehicle with the discharged battery.
NOTE:
If frequent jump-starting is required to start your vehicle you should have the battery
and charging system inspected at your authorized dealer.
WHAT TO DO IN EMERGENCIES
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