ANTI-LOCK BRAKE SYSTEM (ABS) DEACTIVATION IN 4WD
(IF EQUIPPED)
Refer to the label on the back of the sun visor mirror regarding Anti-lock
Brake System (ABS) operation.
Your vehicle’s Anti-lock Brake System (ABS) may be designed to
deactivate when 4WD Low is engaged. The ABS indicator (
ABS)
illuminates and stays on, to indicate that ABS is deactivated, as long as
4WD Low is engaged.
When 4WD Low is disengaged, the ABS light turns off and the system is
active again.
SUSPENSION UPGRADE PACKAGE
Your vehicle is equipped with a special suspension package that will
enhance the vehicle’s off-road performance. The vehicle will handle
differently, both on and off-road, from a factory-equipped passenger car
or truck.
Vehicles with a higher center of gravity such as utility and
four-wheel drive vehicles handle differently than vehicles with a
lower center of gravity. Utility and four-wheel drive vehicles are not
designed for cornering at speeds as high as passenger cars any more
than low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns, excessive speed and abrupt
maneuvers in these vehicles. Failure to drive cautiously could result in
an increased risk of loss of vehicle control, vehicle rollover, personal
injury and death.
If the vehicle is not equipped with in-cab suspension controls, the shock
settings are preset and not adjustable inside the vehicle. Contact your
authorized technician to make any necessary adjustments. Maximum
pressure is 15 psi for off-road operation with maximum load.
2008 F-250/350/450/550(f23)
Supplement
USA(fus)
Driving
18
Dual action remote control suspension (if equipped)
To operate the system:
1. Push the red button to pressurize the system for a firmer ride.
2. Push the black buttons on the bleed valves for a softer ride. Separate
bleed valves allow independent adjustment of front and rear shocks.
Note:Do not operate the compressor for more than 30 seconds at a
time. Allow the compressor to cool down for one minute between
operations.
Note:Stop compressor operation when the arrow on the gauge reaches
maximum. Continuing to supply pressure will not make the shocks any
firmer and damage to the system will occur.
The following table is an example of typical settings for the suspension.
Setting Front Rear
High-speed firm ride 8 6
Slow-speed soft ride 2 2
Towing 5 8
2008 F-250/350/450/550(f23)
Supplement
USA(fus)
Driving
19
