Ford 2011 F-550 v.1 Manuel d'utilisateur télécharger pdf (Page 287)

By moving the gearshift lever from the D (Drive) position to the M

(Manual) position you may now manually select the gear you desire.

Only the current gear will be displayed. Press the + button or the –

button to upshift or downshift. If the – button is pressed at a vehicle

speed that would cause an engine overspeed, the requested gear will

flash then disappear and the transmission will remain in the current gear.

Recommended shift speeds

Upshift according to the following chart:

Upshifts when accelerating (recommended for best fuel economy)

Shift from: Gasoline engines Diesel engines

1 – 2 15 mph (24 km/h) 12 mph (19 km/h)

2 – 3 25 mph (40 km/h) 19 mph (31 km/h)

3 – 4 40 mph (64 km/h) 26 mph (42 km/h)

4 – 5 45 mph (72 km/h) 34 mph (55 km/h)

5 – 6 50 mph (80 km/h) 46 mph (74 km/h)

In order to prevent the engine from running at too low an RPM, which

may cause it to stall, the SST will still automatically make some

downshifts if it has determined that you have not downshifted in time.

Although the SST will make some downshifts for you, it will still allow

you to downshift at any time as long as the SST determines that the

engine will not be damaged from over-revving.

The SST will not automatically upshift, even if the engine is approaching

the RPM limit. It must be shifted manually by pressing the + button.

Engine damage may occur if excessive engine revving is held

without shifting.

Hill assist feature

The hill assist feature makes it easier to pull away when the vehicle is on

a slope without the need to use the parking brake. When the hill assist

feature is active, the vehicle will remain stationary on the slope for up to

two seconds after you release the brake pedal. During this time, you

have time to move your foot from the brake to the accelerator pedal and

pull away. The brakes are released automatically once the engine has

developed sufficient drive to prevent the vehicle from rolling down the

slope. This is an advantage when pulling away on a slope; for example

from a car park ramp, traffic lights or when reversing uphill into a

parking space.

Driving

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2011 F-250/350/450/550 (f23)

Owners Guide, 1st Printing

USA (fus)

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Ford 2011 F-550 v.1 Manuel d'utilisateur Page 287