FORD 2013 F-150 v.3 - Manual (Page 252)

When a steering system error is detected, the following messages may
appear in the information display:
• Service Power Steering
• Service Power Steering Now
• Power Steering Assist Fault
Hydraulic steering (6.2L engine)
Your vehicle is equipped with a hydraulic steering system.
To help prevent damage to the power steering system, never hold the
steering wheel at its furthest turning points (until it stops) for more than
a few seconds when the engine is running. If the power steering system
breaks down (or if the engine is turned off), you can steer the vehicle
manually, but it takes more effort.
• Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
• Some noise is normal during operation. If excessive, check for low
power steering pump fluid level before seeking service by your
authorized dealer.
• Heavy or uneven steering efforts may be caused by low power steering
pump fluid level. Check for low power steering pump fluid level before
seeking service by your authorized dealer.
• Do not fill the power steering pump reservoir above the MAX mark on
the reservoir, as this may result in leaks from the reservoir.
Steering Tips
If the steering wanders or pulls, check for:
• an improperly inflated tire
• uneven tire wear
• loose or worn suspension components
• loose or worn steering components
• improper vehicle alignment
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
Driving Aids 251
2013 F-150 (f12)
Owners Guide gf, 3rd Printing, February 2013
USA (fus)