tires LINCOLN AVIATOR 2021 Service Manual

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. When Your Temporary Spare Tire is
Installed
When one of your road tires needs to be
replaced with the temporary spare, the
system will continue to identify an issue to
remind you that the damaged road wheel
and tire assembly needs to be repaired and
put back on your vehicle.
To restore the full function of the tire
pressure monitoring system, have the
damaged road wheel and tire assembly
repaired and remounted on your vehicle.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. See the following
chart for information concerning your tire
pressure monitoring system:
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Customer action required
Possible cause
Low tire pressure warning light
Make sure tires are at the proper pressure. See Inflating your tires
in this chapter. 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.
Tire(s) under-inflated
Solid warning light Repair the damaged road wheel and tire assembly and reinstall
it on the vehicle to restore system function. For a description on
how the system functions, see When Your Temporary Spare Tire
is Installed
in this section.
Spare tire in use
If 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.
TPMS malfunction
Repair the damaged road wheel and tire assembly and reinstall
it on the vehicle to restore system function. For a description on
how the system functions, see When Your Temporary Spare Tire
is Installed
in this section.
Spare tire in use
Flashing warning light If 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.
TPMS malfunction
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When Inflating Your Tires
WARNING: Do not use the tire
pressure displayed in the information
display as a tire pressure gauge. Failure to
follow this instruction could result in
personal injury or death.
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 monitors
tire pressure in each pneumatic tire. While
driving in a normal manner, a typical
passenger tire inflation pressure may
increase about
2–4 psi (14–28 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
about
3 psi (21 kPa) for a drop of 30°F (17°C)
in ambient temperature. This lower pressure
value may be detected by the tire pressure
monitoring system as being significantly
lower than the recommended inflation
pressure and activate the system 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 the 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.
CHANGING A ROAD WHEEL WARNING:
If the tire pressure
monitor sensor becomes damaged it may
not function. Note:
You should only use tire sealants in
roadside emergencies as they may cause
damage to the tire pressure monitoring
system sensor.
Note: The tire pressure monitoring system
indicator light illuminates when the spare
tire is in use. To restore the full function of
the monitoring system, all road wheels
equipped with tire pressure monitoring
sensors must be mounted on the vehicle.
If you get a flat tire when 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.
Have a flat serviced by an authorized dealer
in order to prevent damage to the tire
pressure monitoring system sensors.
See
Tire Pressure Monitoring System (page 430).
Replace the spare tire with a road tire as
soon as possible. During repairing or
replacing of the flat tire, have the authorized
dealer inspect the tire pressure monitoring
system sensor for damage.
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Dissimilar Spare Wheel and Tire
Assembly Information
WARNING: 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 wheel and tire,
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 wheel and tire assembly that is the
same size and type as the road tires and
wheels that were originally provided by us.
If the dissimilar spare tire or wheel is
damaged, you should replace it rather than
repair it.
A dissimilar spare wheel and tire assembly
is defined as a spare wheel and tire assembly
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 WHEEL AND TIRE
ASSEMBLY FOR TEMPORARY USE ONLY.
When driving with one of the dissimilar spare
tires listed above, do not:
• Exceed
50 mph (80 km/h).
• Load the vehicle beyond maximum
vehicle load rating listed on the Safety
Compliance Label.
• Tow a trailer.
• Use snow chains on the end of the
vehicle with the dissimilar spare tire.
• Use more than one dissimilar spare tire
at a time.
• Use commercial car washing equipment.
• Try to repair the dissimilar spare tire.
Use of one of the dissimilar spare tires listed
above at any one wheel location can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs. •
Winter weather driving capability.
• Wet weather driving capability.
• All-wheel driving capability.
3.
Full-size dissimilar spare without label
on wheel.
When driving with the full-size dissimilar
spare wheel and tire assembly, do not:
• Exceed
70 mph (113 km/h).
• Use more than one dissimilar spare
wheel and tire assembly at a time.
• Use commercial car washing equipment.
• Use snow chains on the end of the
vehicle with the dissimilar spare wheel
and tire assembly.
The usage of a full-size dissimilar spare
wheel and tire assembly can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
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•
Wet weather driving capability.
• All-wheel driving capability.
When driving with the full-size dissimilar
spare wheel and tire assembly additional
caution should be given to:
• Towing a trailer.
• Driving vehicles equipped with a camper
body.
• Driving vehicles with a load on the cargo
rack.
Drive cautiously when using a full-size
dissimilar spare wheel and tire assembly and
seek service as soon as possible.
Tire Change Procedure WARNING: The jack supplied with
this vehicle is only intended for changing
wheels. Do not use the vehicle jack other
than when you are changing a wheel in an
emergency. WARNING:
Check that the vehicle
jack is not damaged or deformed and the
thread is lubricated and clean. WARNING:
When one of the front
wheels is off the ground, the transmission
alone will not prevent the vehicle from
moving or slipping off the jack, even if the
transmission is in park (P). WARNING:
To help prevent your
vehicle from moving when changing a
wheel, shift the transmission into park (P),
set the parking brake and use an
appropriate block or wheel chock to
secure the wheel diagonally opposite to
the wheel being changed. For example,
when changing the front left wheel, place
an appropriate block or wheel chock on
the right rear wheel. WARNING:
Always use the jack
provided as original equipment with your
vehicle. If using a jack other than the one
provided, make sure the jack capacity is
adequate for the vehicle weight, including
any vehicle cargo or modifications. If you
are unsure if the jack capacity is adequate,
contact the authorized dealer. WARNING:
Failure to follow these
guidelines could result in an increased risk
of loss of vehicle control, injury or death. WARNING:
Use only the specified
jacking points. If you use other positions,
you may damage the body, steering,
suspension, engine, braking system or the
fuel lines. WARNING:
Do not work on your
vehicle when the jack is the only support.
If the vehicle slips off the jack, you or
someone else could be seriously injured. WARNING:
Never place anything
between the vehicle jack and your vehicle.
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WARNING: Never place anything
between the vehicle jack and the ground. WARNING:
Park your vehicle so that
you do not obstruct the flow of traffic or
place yourself in any danger and set up a
warning triangle. WARNING: Do not attempt to change
a tire on the side of the vehicle close to
moving traffic. Pull far enough off the road
to avoid the danger of being hit when
operating the jack or changing the wheel.
Note: Passengers should not remain in your
vehicle when the vehicle is being jacked.
Note: Jack at the specified locations to avoid
damage to the vehicle. Note:
No maintenance or additional
lubrication of your jack is required over the
service life of your vehicle.
1. Park on a level surface, set the parking brake and switch on the hazard flashers.
2. Apply the parking brake, place the transmission in park (P) and turn the
engine off.
3. If your vehicle has air suspension, use the touch screen to switch on the Air
Suspension Service Mode prior to
jacking. 4.
Block the wheel diagonally opposite the
flat tire. For example, if the left front tire
is flat, block the right rear wheel.
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5.
Turn the wing nut securing the spare tire
counterclockwise, remove the wing nut.
6. Remove the spare tire, jack and wrench from the spare tire storage compartment
under the trunk load floor. 7. Turn the hex nut on the jack
counterclockwise to remove the lug
wrench from jack. This lowers the jack
and loosens the mechanical lock. 8. Unfold the wrench for use. 9. Remove the strap from the jack.
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10. Loosen each wheel lug nut one-half
turn counterclockwise, but do not
remove them until the flat tire is raised
off the ground. 11. Find the jacking points shown here,
small arrow-shaped marks on the sills
show the location of the jacking points. 12.
If your vehicle is equipped with running
boards the jacking points will be
marked on the front and rear of the
running board. 13.
Place the jack at the jacking point next
to the tire which you are changing. Turn
the lug wrench handle clockwise until
the flat tire is completely off the ground.
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14. Remove the lug nuts with the lug
wrench.
15. Replace the flat tire with the spare tire,
making sure the valve stem is facing
outward.
16. Install the lug nuts snug against the hub. Do not fully tighten the lug nuts
until the vehicle is lowered.
17. Turn the wrench handle counterclockwise to lower the vehicle
completely. 18. Remove the jack and fully tighten the
lug nuts in the order shown. See
Technical Specifications (page 442).
19. If you enabled the Air Suspension Service Mode, switch the mode off prior
to driving.
20. Remove the wheel blocks. Stowing the jack
1. To store the folded wrench on the jack,
engage the bracket of the jack base and
the lug wrench pin, swing the wrench
upwards, adjust jack height until the
wrench hook engages the hole on jack.
Tighten the hex nut clockwise by hand
until secure.
2. Place the jack in the spare tire compartment, install the wing nut and
tighten clockwise by hand until secure.
Stowing the flat tire
You cannot store the full-sized road wheel
in the temporary spare tire well.
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1. Find the flat tire retainer strap tucked
inside the jack channel. Lower the
carpeted load floor.
2. Stow the flat tire in the cargo area on the
load floor with the wheel facing up.
Secure the flat tire with the retainer strap
by following the next steps. 3. Locate the rear left side and right side
cargo tie-down rings. Push the loop end
of the retainer strap through one cargo
tie-down ring. Thread the non-loop end
through the loop.
4. Weave the retainer strap through the wheel openings. 5. Locate the front cargo tie-down in the
opposite rear corner of the cargo area.
Thread the retainer strap through the
tie-down and pull tight. 6. Secure by tying a 2-half hitch knot.
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