Lincoln 2009 MKZ - Manual (Page 229)

Removing the jumper cables
Remove the jumper cables in the reverse order that they were
connected.
1. Remove the jumper cable from the ground metal surface.
Note: In the illustrations, lightning bolts are used to designate the
assisting (boosting) battery.
2. Remove the jumper cable on the negative (-) connection of the
booster vehicle’s battery.
+ –
+ –
+ –
+ –
2009 MKZ (378)
Owners Guide
USA (fus)
Roadside Emergencies
229