2012 FORD F250 warning light

•PSI:Pounds per square inch, a standard unit of air pressure.
•Cold inflation pressure:The tire pressure when the vehicle has
been stationary and out of direct sunlight for an hour or more and
prior to the vehicle being driven for 1 mile (1.6 km).
•Recommended inflation pressure:The cold inflation pressure found
on the Safety Compliance Certification Label (affixed to either the
door hinge pillar, door-latch post, or the door edge that meets the
door-latch post, next to the driver’s seating position), or Tire Label
located on the B-Pillar or the edge of the driver’s door.
•B-pillar:The structural member at the side of the vehicle behind the
front door.
•Bead area of the tire:Area of the tire next to the rim.
•Sidewall of the tire:Area between the bead area and the tread.
•Tread area of the tire:Area of the perimeter of the tire that
contacts the road when mounted on the vehicle.
•Rim:The metal support (wheel) for a tire or a tire and tube assembly
upon which the tire beads are seated.
INFLATING YOUR TIRES
Safe operation of your vehicle requires that your tires are properly
inflated. Remember that a tire can lose up to half of its air pressure
without appearing flat.
Every day before you drive, check your tires. If one looks lower than the
others, use a tire gauge to check pressure of all tires and adjust if
required.
At least once a month and before long trips, inspect each tire and check
the tire pressure with a tire gauge (including spare, if equipped). Inflate
all tires to the inflation pressure recommended by Ford Motor Company.
WARNING:Under-inflation is the most common cause of tire
failures and may result in severe tire cracking, tread separation
or “blowout”, with unexpected loss of vehicle control and increased
risk of injury. Under-inflation increases sidewall flexing and rolling
resistance, resulting in heat buildup and internal damage to the tire. It
also may result in unnecessary tire stress, irregular wear, loss of
vehicle control and accidents. A tire can lose up to half of its air
pressure and not appear to be flat!
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Tire Inflation Information
WARNING:An inflated tire and rim can be very dangerous if
improperly used, serviced or maintained. To reduce the risk of
serious injury, never attempt to re-inflate a tire which has been run flat
or seriously under-inflated without first removing the tire from the
wheel assembly for inspection. Do not attempt to add air to tires or
replace tires or wheels without first taking precautions to protect
persons and property.
All tires with Steel Carcass Plies (if equipped):
This type of tire utilizes steel cords in the sidewalls. As such, they
cannot be treated like normal light truck tires. Tire service, including
adjusting tire pressure, must be performed by personnel trained,
supervised and equipped according to Federal Occupational Safety and
Health Administration (OSHA) regulations. For example, during any
procedure involving tire inflation, the technician or individual must
utilize a remote inflation device, and ensure that all persons are clear of
the trajectory area.
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13.Maximum Permissible Inflation Pressure:Indicates the tire
manufacturers’ maximum permissible pressure and/or the pressure at
which the maximum load can be carried by the tire. This pressure is
normally higher than the manufacturer’s recommended cold inflation
pressure which can be found on the Safety Compliance Certification
Label or Tire Label which is located on the B-Pillar or the edge of the
driver’s door. The cold inflation pressure should never be set lower than
the recommended pressure on the vehicle label.
The tire suppliers may have additional markings, notes or warnings such
as standard load, radial tubeless, etc.
Additional information contained on the tire sidewall for “LT” type
tires
“LT” type tires have some additional
information beyond those of “P”
type tires; these differences are
described below.
Note:Tire Quality Grades do not
apply to this type of tire.
1.LT:Indicates a tire, designated by
the Tire and Rim Association
(T&RA), that is intended for service
on light trucks.
2.Load Range/Load Inflation
Limits:Indicates the tire’s
load-carrying capabilities and its
inflation limits.
3.Maximum Load Dual lb (kg) at psi (kPa) cold:Indicates the
maximum load and tire pressure when the tire is used as a dual; defined
as four tires on the rear axle (a total of six or more tires on the vehicle).
4.Maximum Load Single lb (kg) at psi (kPa) cold:Indicates the
maximum load and tire pressure when the tire is used as a single;
defined as two tires (total) on the rear axle.
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replacement or alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the TPMS malfunction
telltale after replacing one or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires and wheels allow the
TPMS to continue to function properly.
The tire pressure monitoring system complies with part 15 of the FCC
rules and with RSS-210 of Industry Canada. Operation is subject to the
following two conditions: (1) This device may not cause harmful
interference, and (2) This device must accept any interference received,
including interference that may cause undesired operation.
Changing Tires with a TPMS
Note:Each road tire is equipped
with a tire pressure sensor located
inside the tire and wheel assembly
cavity. The pressure sensor is
attached to the valve stem. The
pressure sensor is covered by the
tire and is not visible unless the tire
is removed. Care must be taken
when changing the tire to avoid
damaging the sensor.
It is recommended that you always
have your tires serviced by an authorized dealer.
The tire pressure should be checked periodically (at least monthly) using
an accurate tire gauge, refer toInflating your tiresin this chapter.
Understanding Your Tire Pressure Monitoring System
The tire pressure monitoring system measures pressure in your four road
tires and sends the tire pressure readings to your vehicle. The low tire
pressure warning light will turn on if the tire pressure is significantly low.
Once the light is illuminated, your tires are under-inflated and need to be
inflated to the manufacturer’s recommended tire pressure. Even if the light
turns on and a short time later turns off, your tire pressure still needs to
be checked. Visit www.checkmytires.org for additional information.
When your temporary spare tire is installed
When one of your road tires needs to be replaced with the temporary spare,
the TPMS will continue to identify an issue to remind you that the damaged
road wheel/tire needs to be repaired and put back on your vehicle.
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To restore the full functionality of the tire pressure monitoring system,
have the damaged road wheel/tire repaired and remounted on your
vehicle. For additional information, refer toChanging tires with a
TPMSin this section.
When you believe your system is not operating properly
The main function of the tire pressure monitoring system is to warn you
when your tires need air. It can also warn you in the event the system is
no longer capable of functioning as intended. Refer to the following chart
for information concerning your tire pressure monitoring system:
Low tire
pressure
warning lightPossible cause Customer action required
Solid warning
lightTire(s)
under-inflated1. Make sure tires are at the proper
pressure. SeeInflating your tiresin
this chapter.
2. After inflating your tires to the
manufacturer’s recommended pressure
as shown on the Tire Label (located
on the edge of driver’s door or the
B-Pillar), the vehicle must be driven
for at least two minutes over 20 mph
(32 km/h) before the light turns off.
Spare tire in use Repair the damaged road wheel/tire
and reinstall it on the vehicle to
restore system functionality. For a
description on how the system
functions, refer toWhen your
temporary spare tire is installedin
this section.
TPMS
malfunctionIf the tires are properly inflated and
the spare tire is not in use but the
light remains on, contact your
authorized dealer as soon as possible.
Tire rotation
without sensor
trainingOn vehicles with different front and
rear tire pressures, the TPMS must be
retrained following every tire rotation.
SeeTire rotationin this chapter.
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Low tire
pressure
warning lightPossible cause Customer action required
Flashing warning
lightSpare tire in use Repair the damaged road wheel/tire
and reinstall it on the vehicle to
restore system functionality. For a
description on how the system
functions, refer toWhen your
temporary spare tire is installedin
this section.
TPMS
malfunctionIf the tires are properly inflated and
the spare tire is not in use but the
light remains on, contact your
authorized dealer as soon as possible.
When inflating your tires
When putting air into your tires (such as at a gas station or in your
garage), the tire pressure monitoring system may not respond
immediately to the air added to your tires.
It may take up to two minutes of driving over 20 mph (32 km/h) for the
light to turn off after you have filled your tires to the recommended
inflation pressure.
How temperature affects your tire pressure
The tire pressure monitoring system (TPMS) monitors tire pressure in
each pneumatic tire. While driving in a normal manner, a typical
passenger tire inflation pressure may increase approximately 2 to 4 psi
(14 to 28 kPa) from a cold start situation. If the vehicle is stationary
overnight with the outside temperature significantly lower than the
daytime temperature, the tire pressure may decrease approximately 3 psi
(21 kPa) for a drop of 30°F (17°C) in ambient temperature. This lower
pressure value may be detected by the TPMS as being significantly lower
than the recommended inflation pressure and activate the TPMS warning
light for low tire pressure. If the low tire pressure warning light is on,
visually check each tire to verify that no tire is flat. (If one or more tires
are flat, repair as necessary.) Check air pressure in the road tires. If any
tire is under-inflated, carefully drive the vehicle to the nearest location
where air can be added to the tires. Inflate all the tires to the
recommended inflation pressure.
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TPMS Reset Procedure
WARNING:To determine the required pressure(s) for your
vehicle, refer to the Safety Compliance Certification Label
(affixed to either the door hinge pillar, door-latch post, or the door
edge that meets the door-latch post, next to the driver’s seating
position), or Tire Label located on the B-Pillar or the edge of the
driver’s door. SeeLoad Carryingfor more information.
Note:The TPMS reset procedure needs to be performed after each tire
rotation on vehicles that require different recommended tire pressures in
the front tires as compared to the rear tires.
Overview
To provide the vehicle’s load carrying capability, some vehicles require
different recommended tire pressures in the front tires as compared to
the rear tires. The tire pressure monitoring system equipped on these
vehicles is designed to illuminate the low tire pressure warning light at
two different pressures; one for the front tires and one for the rear tires.
Since tires need to be rotated to provide consistent performance and
maximum tire life, the tire pressure monitoring system needs to know
when the tires are rotated to determine which set of tires are on the
front and which are on the rear. With this information, the system can
detect and properly warn of low tire pressures.
TPMS reset tips:
•To reduce the chances of interference from another vehicle, the TPMS
reset procedure should be performed at least three feet (one meter)
away from another Ford Motor Company vehicle undergoing the TPMS
reset procedure at the same time.
•Do not wait more than two minutes between resetting each tire sensor
or the system will time-out and the entire procedure will have to be
repeated on all four wheels.
•A double horn chirp indicates the need to repeat the procedure.
Performing the TPMS Reset Procedure
It is recommended that you read the entire procedure before attempting.
1. Drive the vehicle above 20 mph (32 km/h) for at least two minutes
and then park in a safe location where you can easily get to all four tires
and have access to an air pump.
2. Place the ignition in the off position and keep the key in the ignition.
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STARTING
Positions of the ignition
1. Off— shuts off the engine and all
accessories/locks the steering wheel
and allows key removal.Note:In
order to switch off the engine while
the vehicle is in motion, shift to
neutral and use the brakes to bring
the vehicle to a safe stop. After the
vehicle has stopped, turn the engine
off and shift into park. Then, turn
the key to the accessory or off
position.
2. Accessory— allows the electrical accessories such as the radio to
operate while the engine is not running. This position also unlocks the
steering wheel.
3. On— all electrical circuits operational. Warning lights illuminated. Key
position when driving.
4. Start— cranks the engine. Release the key as soon as the engine
begins cranking.
Note:Do not store the key in the ignition after the vehicle is turned off
and you have left the vehicle. This could cause a drain on the battery.
Preparing to start your vehicle
Engine starting is controlled by the powertrain control system.
The powertrain control system meets all Canadian interference-causing
equipment standard requirements regulating the impulse electrical field
strength of radio noise.
When starting a fuel-injected engine, don’t press the accelerator before
or during starting. Only use the accelerator when you have difficulty
starting the engine. For more information on starting the vehicle, refer to
Starting the enginein this chapter.
WARNING:Extended idling at high engine speeds can produce
very high temperatures in the engine and exhaust system,
creating the risk of fire or other damage.
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