FORD 2010 F-550 v.2 - Manual (Page 108)

Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output.
To activate:
• the ignition must be in the on position,
• the headlamp control is in the off or parking lamp position and
• the parking brake must be disengaged.
WARNING: Always remember to turn on your headlamps at
dusk or during inclement weather. The Daytime Running Lamp
(DRL) system does not activate the tail lamps and generally may not
provide adequate lighting during these conditions. Failure to activate
your headlamps under these conditions may result in a collision.
High beams
Push the lever toward the
instrument panel to activate. Pull
the lever toward you to deactivate.
Flash-to-pass
Pull toward you slightly to activate
and release to deactivate.
OFF
Lights
108
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)