Only use replacement tires and wheels that are the same size
and type (such as P-metric versus LT-metric or all-season versus
all-terrain) as those originally provided by Ford. Use of any tire or
wheel not recommended by Ford can affect the safety and
performance of your vehicle, which could result in an increased risk of
loss of vehicle control, vehicle rollover, personal injury and death.
Additionally the use of non-recommended tires and wheels could cause
steering, suspension, axle or transfer case/power transfer unit failure. If
you have questions regarding tire replacement, see an authorized Ford
or Lincoln/Mercury dealer.
Make sure all tires and wheels on the vehicle are of the same size, type,
tread design, brand, load-carrying capacity and speed rating because it
can affect the safety and performance of your vehicle, which could result
in an increased risk of loss of vehicle control, vehicle rollover, personal
injury and death.
You should replace the spare tire when you replace the other road tires
due to the aging of the spare tire.
Tire pressure monitoring system (TPMS)
When the tire pressure monitoring
system warning light is lit, one or
more of your tires is significantly
under-inflated. You should stop and
check your tires as soon as possible,
and inflate them to the proper pressure as indicated on the vehicle’s tire
information placard (label). Driving on a significantly under-inflated tire
causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the
vehicle’s handling and stopping ability. Even if your vehicle is equipped
with a tire pressure monitoring system, it is still important that you
manually check the inflation pressure of your tires regularly. Each tire,
including the spare, should be checked monthly when cold and set to the
recommended inflation pressure as specified on the vehicle placard
(label) and in the owner’s manual.
Note:
The Tire Pressure Monitoring System (TPMS) monitors tire
pressure in each pneumatic tire. The pressure in each tire is dependent
upon several factors, one of them being the contained air temperature
(temperature of the air inside the tire). As the contained air temperature
increases, the tire pressure also increases. While driving in a normal
manner, a typical passenger tire inflation pressure may increase
2004 Navigator
(nav)
Owners Guide (post-2002-fmt)
USA English
(fus)
Maintenance and Specifications
359
