FORD 2013 Flex v.2 - Manual (Page 262)

Launching or Retrieving a Boat or Personal Water Craft (PWC)
Note: Disconnect the wiring to the trailer before backing the trailer into
the water.
Note: Reconnect the wiring to the trailer after the trailer is removed
from the water.
When backing down a ramp during boat launching or retrieval:
1. Do not allow the static water level to rise above the bottom edge of
the rear bumper.
2. Do not allow waves to break higher than six inches (15 centimeters)
above the bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
1. Causing internal damage to the components.
2. Affecting driveability, emissions, and reliability.
Replace the rear axle lubricant any time the rear axle has been
submerged in water. Water may have contaminated the rear axle
lubricant, which is not normally checked or changed unless a leak is
suspected or other axle repair is required.
262 Towing
2013 Flex (471)
Owners Guide gf, 2nd Printing
USA (fus)