Jeep 2012 Compass - User Guide - Manual (Page 77)

Jump-Starting Procedure
NOTE: Remove Air Intake before proceeding with this Jump-Starting
procedure.
1. Connect the positive (+) end of the jumper cable to the 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 (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:
6. Disconnect the negative (-) jumper cable from the engine ground of the
vehicle with the discharged battery.
7. Disconnect the negative end (-) of the jumper cable from the negative
(-) post of the booster battery.
8. Disconnect the opposite end of the positive (+) jumper cable from the
positive (+) post of the booster battery.
9. Disconnect the positive (+) end of the jumper cable from the positive
(+) post of the discharged vehicle.
10. Reinstall the air intake duct.
NOTE: If frequent jump-starting is required to start your vehicle you should
have the battery and charging system inspected at your authorized dealer.
CAUTION!
• Accessories that can be plugged into the vehicle power outlets
draw power from the vehicle’s battery, even when not in use (i.e.,
cellular phones, etc.). Eventually, if plugged in long enough, the
vehicle’s battery will discharge sufficiently to degrade battery life
and/or prevent the engine from starting.
• 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.
• Failure to follow these procedures could result in damage to the
charging system of the booster vehicle or the discharged vehicle.
WHAT TO DO IN EMERGENCIES
75