Ford F-150 2010 Owner's Manual page 116

Driver Controls
Note:
• Fully close and latch the tailgate step before moving the vehicle.
• Never drive with the step or grab handle deployed.
• Replace slip resistance tape (serviceable item) if worn out.
• Replace handle molding (serviceable item) if damaged.
• Do not tow with grab handle or step frame.
Box side step (if equipped)
Your vehicle may be equipped with a box side step that allows easier
access to the truck bed.
Note: Do not drive vehicle with box side step(s) in the deployed
position.
Note: The box side step load carrying capability (1 person + cargo) is
500 lb (227 kg). Do not exceed 500 lb (227 kg).
To deploy the box side step, with your foot, push down on the button.
The step will automatically extend out from the stowed position.
Note: The box side steps may operate slower in cooler temperatures. In
adverse conditions, debris such as mud, dirt, snow, ice, and salt may
become trapped in the box side step mechanism, possibly causing the
box side step to not deploy automatically after pressing the button. If
this occurs, ensure that the button is pressed down, carefully manually
pull out the box side step, wash off the debris with a high-pressure car
wash wand, and re-stow the step.
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