sensor FORD F150 2008 11.G Owner's Manual

Tire rotation using the
recommended sequence
(front tires at top of diagram)
Sensor position following tire
rotation
Sensor 1: 50 psi
Sensor 2: 50 psi
Sensor 3: 80 psi
Sensor 4: 80 psi
Pressure adjustment without the
required TPMS reset procedure
Sensor 1: 80 psi
Sensor 2: 80 psi
Sensor 3: 50 psi
Sensor 4: 50 psi
In this situation, the TPMS warning
light will come on.
If the TPMS reset procedure is not performed after tire rotation and air
pressure adjustment, the TPMS telltale may illuminate for a false low tire
pressure condition.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
235

As in this example, the rear tires rotated to the front and properly
inflated to 50 psi (345 kPa) for the front axle would falsely illuminate the
low tire warning indicator as they are still trained for the rear positions
which require 80 psi (552 kPa).
Rotation, pressure adjustment
and successful completion of the
TPMS reset procedure
Sensor 1: 80 psi
Sensor 2: 80 psi
Sensor 3: 50 psi
Sensor 4: 50 psi
Tire rotation and air pressure
adjustment followed by sensor
resetting will ensure the system is properly programmed for vehicles
with different front and rear tire pressures and reduce the risk of a false
low tire warning.
In this situation, the TPMS warning light will be off.
SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains. If you need to use chains, it is recommended that steel
wheels (of the same size and specifications) be used, as chains may chip
aluminum wheels.
Note: Do not place chains on the following tires sizes: P265/60R18,
P275/65R18, LT275/65R18, P275/55R20, and P275/45R22.
Follow these guidelines when using snow tires and chains:
•Use only SAE Class S chains.
•Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
•Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and re-tighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
•If possible, avoid fully loading your vehicle.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
236

The RSS automatically turns on
when the gearshift lever is placed in
R (Reverse) and the ignition is ON.
An RSS control allows the driver to
turn the RSS on and off. To turn the
RSS off, the ignition must be ON,
and the gear selector in R
(Reverse). An indicator light on the
control will illuminate when the system is turned off. If the indicator
light illuminates when the RSS is not turned off, it may indicate a failure
in the RSS. The RSS will remain off until either the RSS control is
pushed again or the ignition switch is recycled.
Keep the RSS sensors (located on the rear bumper/fascia) free
from snow, ice and large accumulations of dirt (do not clean the
sensors with sharp objects). If the sensors are covered, it will
affect the accuracy of the RSS.
If your vehicle sustains damage to the rear bumper/fascia, leaving
it misaligned or bent, the sensing zone may be altered causing
inaccurate measurement of obstacles or false alarms.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
279

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
F18 10A* Electrochromatic mirror, Heated
seats, BSM, Compass, RSS
(Reverse Sensing System), Power
rail
F19 10A* Restraints (Airbag module)
F20 10A* Power rail
F21 15A* Cluster keep alive power
F22 10A* Delayed accessory power for
audio, power door lock switch and
moon roof switch illumination
F23 10A* RH low beam headlamp
F24 15A* Battery saver power for demand
lamps, Flex fuel
F25 10A* LH low beam headlamp
F26 20A* Horn
F27 5A* Passenger Airbag Deactivation
(PAD) warning lamp, Cluster
airbag warning lamp
F28 5A* SecuriLock transceiver (PATS),
PCM IGN monitor
F29 15A* PCM 4x4 power
F30 15A* PCM 4x4 power
F31 20A* Radio power, Satellite radio
module
F32 15A* Vapor Management Valve (VMV),
A/C clutch relay, Canister vent,
Heated Exhaust Gas Oxygen
(HEGO) sensors #11 and #21,
CMCV, Mass Air Flow (MAF)
sensor, Variable Cam Timing
(VCT), Heated Positive Crankcase
Ventilation (PCV) valve (4.2L
engine), CID sensor (4.2L
engine), 4.6L/4.2L EGR
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
303

CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare tire is in use. To restore the full functionality
of the monitoring system, all road wheels equipped with tire pressure
monitoring sensors must be mounted on the vehicle.
Have a flat serviced by an authorized dealer in order to prevent damage
to the TPMS sensors, refer toTire Pressure Monitoring System
(TPMS)in theTires, Wheels and Loadingchapter. Replace the spare
tire with a road tire as soon as possible.
The use of tire sealants may damage your Tire Pressure
Monitoring System and should not be used.
Refer toTire Pressure Monitoring System (TPMS)in the
Tires, Wheels and Loadingchapter for important information. If
the tire pressure monitor sensor becomes damaged, it will no longer
function.
Dissimilar spare tire/wheel information
Failure to follow these guidelines could result in an increased
risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1.T-type mini-spare:This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
2.Full-size dissimilar spare with label on wheel:This spare tire has
a label on the wheel that states: “THIS TIRE AND WHEEL FOR
TEMPORARY USE ONLY”
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
307

heated ......................................114
programmable memory ..........149
side view mirrors (power) .....112
signal .......................................114
Moon roof ..................................119
Motorcraft parts ........338, 357, 380
N
Navigation system .......................80
O
Octane rating ............................363
Oil (see Engine oil) ..................345
P
Parking brake ............................266
Parts (see Motorcraft parts) ....380
Passenger Occupant
Classification Sensor .................165
Power distribution box
(see Fuses) ...............................300
Power door locks ......................144
Power mirrors ...........................112
Power point ...............................108
Power steering ..........................267
fluid, checking and adding ....370
fluid, refill capacity ................381
fluid, specifications .................381
Power Windows .........................110
Preparing to drive your
vehicle ........................................268
R
Radio ..........................23, 27, 29, 36Rear seat entertainment
system ..........................................51
Rear video camera ....................280
Relays ........................................299
Remote entry system ...............147
illuminated entry ....................151
locking/unlocking
doors ................................147–148
panic alarm .............................149
replacement/additional
transmitters .............................150
replacing the batteries ...........149
Reverse sensing system ...........277
Roadside assistance ..................296
S
Safety Belt Maintenance ..........183
Safety belts (see
Safety restraints) .............164, 167,
169–170, 173–175, 177
Safety defects,
reporting ............................327–328
Safety restraints ...............164, 167,
169–170, 173–175, 177
Belt-Minder...........................178
Belt-Minder,
deactivating/activating ...........181
extension assembly ................182
for adults .........169–170, 173–175
for children .............................192
lap belt ....................................172
Occupant Classification
Sensor ......................................165
safety belt maintenance .........183
warning light and
chime ...............................177–178
Safety seats for children ..........196
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Index
395