Fiat 2014 500 Owner's Manual page 334

332 WHAT TO DO IN EMERGENCIES
WARNING!
Do not connect the jumper cable to the negative (-)
post of the discharged battery. The resulting electri-
cal spark could cause the battery to explode and
could result in personal injury. Only use the specific
ground point, do not use any other exposed metal
parts.
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, remove the jumper cables
in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative (-) jumper cable from the
engine ground (-) of the vehicle with the discharged
battery.
2. Disconnect the negative end (-) of the jumper cable
from the negative (-) post of the booster battery.
3. Disconnect the opposite end of the positive (+) jumper
cable from the positive (+) post of the booster battery.
4. Disconnect the positive (+) end of the jumper cable
from the positive (+) post of the discharged vehicle.
If frequent jump-starting is required to start your vehicle,
you should have the battery and charging system in-
spected at your authorized dealer.