FORD 2013 C-MAX Hybrid v.3 - Manual (Page 261)

Connecting the Jumper Cables
WARNING: Do not connect the end of the second cable to the
negative (-) terminal of the battery to be jumped. A spark may
cause an explosion of the gases that surround the battery or a surge of
the battery.
Your vehicle has a 12 volt battery that has two prongs accessible from
under the hood. Your vehicle can be jumped the same way conventional
vehicles can be using these prongs. The illustration below shows the two
connector prongs used for jump-starting your vehicle.
A. Positive prong (+)
B. Negative prong (-)
B
A
260 Roadside Emergencies
2013 C-Max Full Hybrid (34h)
Owners Guide gf, 3rd Printing, January 2013
USA (fus)