Ford Super Duty Owner's Manual page 202

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• Provides maximum engine braking.

• Allows upshifts by moving gearshift lever.

• The transmission will not downshift into 1 (First) at high speeds; it

will downshift to a lower gear and then shift into 1 (First) when the

vehicle reaches slower speeds.

Forced downshifts

• Allowed in D (Overdrive) or D (Drive).

• Press the accelerator to the floor.

• Allows transmission to select an appropriate gear.

Understanding the Shift Positions of a 6–Speed Automatic

Transmission (If Equipped)

WARNING: Always set the parking brake fully and make sure

the gearshift is latched in P (Park). Turn the ignition to the off

position and remove the key whenever you leave your vehicle.

WARNING: Do not use the tow/haul feature when driving in icy

or slippery conditions as the increased engine braking can cause

the rear wheels to slide and the vehicle to swing around with the

possible loss of vehicle control.

This position locks the transmission and prevents the rear wheels from

2013 F-250/350/450/550 (f23)

Owners Guide gf, 3rd Printing, December 2012

Transmission