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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.
The use of tire sealants may damage your tires. The use of tire
sealants may also damage your tire pressure monitoring system
(if equipped).
Your vehicle may be equipped with a conventional spare tire that is
different in one or more of the following: type, brand, size, speed rating
and tread design. If this is the case, this dissimilar spare tire is still rated
for your vehicle loads (GAWR and GVWR). Your vehicle is equipped with
a spare wheel that does not match the road wheels and is not equipped
with a Tire Pressure Monitor System (TPMS) sensor.
Spare tire information
Note: If your vehicle is equipped with the tire pressure monitoring
system (TPMS), the system indicator light will illuminate when the spare
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
If your vehicle is equipped with TPMS, have a flat tire serviced by a
dealer or qualified technician in order to prevent damage to the TPMS
sensor. Replace the spare tire with a road tire as soon as possible.
Location of the spare tire and tools
The spare tire and tools for your vehicle are stowed in the following
locations:
Item Location
Spare tire Under the vehicle, just forward of
the rear bumper
Jack tools and jacking instructions Under the access panel located in
the floor compartment behind the
rear seat
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3. Obtain the spare tire and jack
from their storage locations. Turn
off the air suspension switch (the
air suspension switch is located
behind two trim panels on the left
rear quarter trim panel. Refer to Air
Suspension System in the Driving
section for more information.). Also,
turn OFF the deployable running
boards (if equipped. See Message
center in the Driver controls
section).
4. Use the tip of the jack handle to
remove any wheel trim. Loosen each
wheel lug nut one-half turn
counterclockwise but do not remove
them until the wheel is raised off
the ground.
5. Position the jack according to the
jack locator arrows found on the
frame and turn the jack handle and
extension tool assembly clockwise.
Lift the vehicle so the tire is no
further than 2.5 cm (1 inch) off the
ground when installing the spare
tire.
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Information on “ T ” type tires
T145/80D16 is an example of a tire
size.
Note: The temporary tire size for
your vehicle may be different than
this example.
1. T: Indicates a type of tire,
designated by the Tire and Rim
Association (T&RA), that is
intended for temporary service on
cars, SUVs, minivans and light
trucks.
2. 145: Indicates the nominal width
of the tire in millimeters from
sidewall edge to sidewall edge. In
general, the larger the number, the
wider the tire.
3. 80: Indicates the aspect ratio
which gives the tires ratio of height to width. Numbers of 70 or lower
indicate a short sidewall.
4. D: Indicates a “ diagonal ” type tire.
R: Indicates a “ radial ” type tire.
5. 16: Indicates the wheel or rim diameter in inches. If you change your
wheel size, you will have to purchase new tires to match the new wheel
diameter.
Location of the tire label
You will find a tire label containing tire inflation pressure by tire size and
other important information located on the B-Pillar or the driver ’ s door.
TIRE CARE
Improper or inadequate vehicle maintenance can also cause tires to wear
abnormally. Here are some of the important maintenance items
Tire inflation pressure
Use a tire gauge to check the tire inflation pressure, including the spare,
at least monthly and before long trips. You are strongly urged to buy a
reliable tire pressure gauge, as automatic service station gauges may be
inaccurate. SPARETIRE
T
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T T145/80D16105M
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is on, visually check each tire to verify that no tire is flat. If one or more
tires are flat, repair of fix as necessary. If all tires appear to be inflated,
carefully drive the vehicle to the nearest location where air can be added
to the tires. Turn the ignition to the “ off ” position. Inflate all the tires to
the recommended cold pressure.
The system uses radio-frequency to monitor the tire pressure on all tires
excluding the spare tire. The sensors transmit the tire pressure readings
to the receiver module located in the vehicle. The receiver module then
electronically transmits the status to the message center. For more tire
warning information, refer to the Message Center in the Driver controls
chapter.
This device complies with part 15 of the FCC rules and with RS-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.
The tire pressure monitoring system is NOT a substitute for
manually checking tire pressure. The tire pressure should be
checked periodically (at least monthly) using a tire gauge, see
Checking the tire pressure in this chapter. Failure to properly
maintain your tire pressure could increase the risk of tire failure, loss
of control, vehicle rollover and personal injury.
Changing tires with TPMS
It is recommended that you always
have your tires serviced by a dealer
or qualified technician. Each road
tire is equipped with a tire
pressure sensor mounted on the
wheel inside the tire connected
to the valve stem. The tire
pressure sensor must be unbolted from the wheel prior to tire
removal. The sensor can be removed by loosening the nut at the
valve stem. Failure to remove the sensor may damage it. The
rubber grommet (washer) between the wheel and the tire pressure
sensor needs to be replaced when any tire is changed to minimize air
leaks.
The tire pressure should be checked periodically (at least monthly) using
a tire gauge, refer to Checking the tire pressure in this chapter.
2004 Navigator (nav)
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USA English (fus) Maintenance and Specifications
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