2010 FORD F250 warning light

Engine coolant temperature
(RTT):Displays when the engine
coolant temperature is high. Stop
the vehicle as soon as safely possible, switch off the engine and let it
cool. Refer toEngine coolantin theMaintenance and Specifications
chapter.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
Low fuel (RTT):Displays when
the fuel level in the fuel tank is at
or near empty (refer toFuel gauge
in this chapter).
Door ajar (RTT):Displays when
the ignition is in the on position and
any door is open.
Transmission Tow/Haul Feature
(automatic transmission) (if
equipped):The Tow Haul light
remains illuminated as long as the
Tow/Haul feature is activated. Refer to theDrivingchapter for
transmission function and operation. If the light remains illuminated and
will not cancel using the Tow/Haul switch located on the end of the gear
shift lever, have the system serviced immediately or damage to the
transmission could occur.
Four-wheel drive low (if
equipped):Illuminates when
four-wheel drive low is engaged.
Four-wheel drive high (if
equipped):Illuminates when
four-wheel drive high is engaged.
4x4
LOW
4x4
HIGH
Instrument Cluster
18
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

Anti-theft system:Flashes when
the SecuriLock
passive anti-theft
system has been activated.
Speed control (if equipped):
Illuminates when the speed control
is activated. Turns off when the
speed control system is deactivated.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
If your vehicle is equipped with a diesel engine, it has some unique
warning lights; refer toInstrument Clusterin yourPower Stroke 6.0
and 6.4 Liter Direct Injection Turbo Diesel Owner’s Guide
Supplementfor detailed information on their function.
Diesel warning lights:
•Glow plug pre-heat
•Waterinfuel
•Low oil pressure
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the off or accessory position and the driver’s door is opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Instrument Cluster
19
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

Safety information
WARNING:Driving while distracted can result in loss of vehicle
control, accident and injury. Ford strongly recommends that
drivers use extreme caution when using any device that may take their
focus off the road. The driver’s primary responsibility is the safe
operation of their vehicle. Only use cell phones and other devices not
essential to the driving task when it is safe to do so.
Read all of the safety and operating instructions before operating the
system and retain for future reference.
Do not attempt to service, repair or modify the Family Entertainment
System (FES). See your dealer.
Do not insert foreign objects into the DVD compartment.
WARNING:Do not leave children unattended in the vehicle and
do not let children operate the system while unsupervised. If
wired headphones or auxiliary systems are used, children may become
entangled in the cords and seriously injure themselves.
WARNING:The front glass on the liquid crystal display (LCD)
flip-down screen may break when hit with a hard surface. If the
glass breaks, do not touch the liquid crystalline material. In case of
contact with skin, wash immediately with soap and water.
WARNING:The driver should not attempt to operate any
function of the DVD system while the vehicle is in motion. Give
full attention to driving and to the road. Pull off the road in a safe
place before inserting or extracting DVDs from the system. A remote
control is included in the system to allow the rear seat occupants to
operate the FES functions without distracting the driver.
Do not expose the liquid crystal display (LCD) flip-down screen
to direct sunlight or intensive ultraviolet rays for extensive
periods of time. Ultraviolet rays deteriorate the liquid crystal.
Be sure to review User Manuals for video games and video game
equipment when used as auxiliary inputs for your Family Entertainment
System (FES).
Entertainment Systems
94
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

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.
O
F
F
Lights
108
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

Replacing headlamp bulbs (aerodynamic)
1. Make sure that the headlamps are off, then open the hood.
2. Remove the bolts from the
headlamp assembly.
3. Pull the assembly straight out
disengaging two snap clips from the
fender.
4. Disconnect the electrical
connector by squeezing the release
tab and pushing the connector
forward, then pulling it rearward.
5. Remove the bulb assembly by
turning it counterclockwise and
pulling it straight out.
WARNING:Handle a halogen headlamp bulb carefully and keep
out of children’s reach. Grasp the bulb only by its plastic base
and do not touch the glass. The oil from your hand could cause the
bulb to break the next time the headlamps are operated.
Install the new bulb(s) in reverse order.
Lights
115
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

•On the rear of the center console (if equipped) (SuperCab and Crew
Cab models)
Do not use the power point for operating the cigarette lighter element (if
equipped).
To prevent the fuse from being blown, do not use the power point(s)
over the vehicle capacity of 12 VDC/180W. If the power point or cigar
lighter socket is not working, a fuse may have blown. Refer toFuses and
relaysin theRoadside Emergencieschapter for information on
checking and replacing fuses.
To have full capacity usage of your power point, the engine is required to
be running to avoid unintentional discharge of the battery. To prevent
the battery from being discharged:
•do not use the power point longer than necessary when the engine is
not running,
•do not leave battery chargers, video game adapters, computers and
other devices plugged in overnight or when the vehicle is parked for
extended periods.
Always keep the power point caps closed when not being used.
POWER WINDOWS (IF EQUIPPED)
WARNING:Do not leave children unattended in the vehicle and
do not let children play with the power windows. They may
seriously injure themselves.
WARNING:When closing the power windows, you should verify
they are free of obstructions and ensure that children and/or
pets are not in the proximity of the window openings.
Press and pull the window switches
to open and close windows.
•Press down (to the first detent)
and hold the switch to open.
•Pull up (to the first detent) and
hold the switch to close.
Rear Window Buffeting:When one or both of the rear windows are
open, the vehicle may demonstrate a wind throb or buffeting noise. This
noise can be alleviated by lowering a front window approximately two to
three inches.
Driver Controls
124
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

Accessory delay
With accessory delay, the window switches may be used for up to
10 minutes after the ignition switch is turned to the off position or until
either front door is opened.
INTERIOR MIRROR
The interior rear view mirror has two pivot points on the support arm
which lets you adjust the mirror up or down and from side to side.
WARNING:Do not adjust the mirror while the vehicle is in
motion.
Automatic dimming interior rear view mirror (if equipped)
Your vehicle may be equipped with an interior rear view mirror which
has an auto-dimming function. The electronic day/night mirror will
change from the normal (high reflective) state to the non-glare
(darkened) state when bright lights (glare) reach the mirror. When the
mirror detects bright light from behind the vehicle, it will automatically
adjust (darken) to minimize glare.
The mirror will automatically return to the normal state whenever the
vehicle is placed in R (Reverse) to ensure a bright clear view when
backing up.
Do not block the sensors on the front and back of the interior
rear view mirror since this may impair proper mirror
performance.
Do not clean the housing or glass of any mirror with harsh
abrasives, fuel or other petroleum-based cleaning products.
Note:If equipped with a rearview camera system, a video image will be
displayed in the mirror or the navigation system (if equipped) when the
vehicle is put in R (Reverse). As you shift into any other gear from R
(Reverse), the image will remain for a few seconds and then turn off.
Refer toRearview camera systemin theDrivingchapter.
Driver Controls
126
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)

and release the control again to fully open. To stop the one-touch open
feature, press either the
orcontrol again.
WARNING:When closing the moon roof, you should verify that
it is free of obstructions and ensure that children and/or pets are
not in the proximity of the moon roof opening.
To close the moon roof:Press and hold the
control until the glass
panel stops moving. When fully closed, the rear portion of the glass panel
will appear higher than the front portion.
To vent the moon roof:Press and hold the
control.The moon
roof must be in the closed position in order to move it into the
vent position.To close, press and hold the
control until the glass
panel stops moving.
The moon roof has a built-in sliding shade that can be manually opened
or closed when the glass panel is shut. To close the shade, pull it toward
the front of the vehicle.
HOMELINKWIRELESS CONTROL SYSTEM (IF EQUIPPED)
The HomeLink
Wireless Control
System, located on the driver’s visor,
provides a convenient way to
replace up to three hand-held
transmitters with a single built-in
device. This feature will learn the
radio frequency codes of most
transmitters to operate garage
doors, entry gate operators, security systems, entry door locks, and
home or office lighting.
WARNING:When programming your HomeLink
Wireless
Control System to a garage door or gate, be sure that people and
objects are out of the way to prevent potential injury or damage.
Do not use the HomeLink
Wireless Control System with any garage
door opener that lacks safety stop and reverse features as required by
U.S. federal safety standards (this includes any garage door opener
model manufactured before April 1, 1982). A garage door which cannot
detect an object, signaling the door to stop and reverse, does not meet
Driver Controls
139
2010 F-250/350/450/550(f23)
Owners Guide, 2nd Printing
USA(fus)