damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Powertrain malfunction/reduced
power (RTT) (if equipped):
Displays when the engine has
defaulted to a ’limp-home’ operation.
Report the fault to a dealer at the
earliest opportunity.
Brake system warning light:To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position
when the engine is not running, or in a position between ON and START,
or by applying the parking brake when the ignition is turned to the ON
position. If the brake system warning light does not illuminate at this
time, seek service immediately from your authorized dealer. Illumination
after releasing the parking brake indicates low brake fluid level and the
brake system should be inspected immediately by your authorized dealer.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your authorized dealer. Driving extended distances with
the parking brake engaged can cause brake failure and the risk of
personal injury.
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
P!
BRAKE
ABS
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
13
8. Install the lamp assembly on the vehicle and secure with four nuts.
9. Install the interior trim panel.
High-mount brakelamp
To change the high-mount
brakelamp bulbs:
1. Remove the two screws holding
the lamp assembly in place.
2. Pull the lamp assembly straight
out.
3. Disconnect the wire harness.
4. Depress the four tabs that hold
the light assembly on, one at a time,
and pull the black bulb carrier away
from the lamp.
5. Pull the old bulb out and replace
with the new bulb.
6. Snap the black bulb carrier into
the lamp assembly.
7. Connect the wire harness.
8. Install the lamp assembly with
two screws.
Replacing license plate lamp bulb
The license plate bulbs are located in the license plate housing assembly
on the liftgate. To change the license plate bulbs:
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the license lamp screw
from the assembly.
3. Pull the lamp down and twist the
bulb socket counterclockwise.
Remove the bulb socket from the
lamp.
4. Pull out the old bulb and push in
the new bulb.
5. Install the bulb socket in the lamp assembly by turning it clockwise.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
81
To remove an air filter:
•Remove key from ignition.
•Push up on the outside rigid edge
of the filter and rotate toward the
front of the vehicle once tabs are
released.
•Remove filter.
To install a filter:
•First, position the filter in it’s
housing making sure that the far
forward end is all the way up in
the housing. Then push in on the
center of the outside edge of the
filter and rotate up into the
housing until it clips into position.
REAR SEATS
Folding down the 2nd row 40% seat system
Use caution when folding the seatback to the flat back position
as the system will move forward when you lift the release
handle.
Ensure that the head restraint is in the down position and no objects
such as books, purses or briefcases are on the floor in front of the
second row seats before folding them down.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
147
Mode Maximum Gross Trailer
Weight - lb. (kg)Maximum Tongue Weight
- lb. (kg)
Weight
carrying6000 (2721) 600 (272)
Weight
distributing8950 (4059) 895 (405)
These are hitch ratings only; actual vehicle ratings are dependent on
engine, transmission and axle combinations.
Towing trailers beyond the maximum tongue weight exceeds the
limit of the towing system and could result in vehicle structural
damage, loss of vehicle control and personal injury.
Trailer hitch cover
Your vehicle is equipped with a removable trailer hitch trim cover. To
remove the trim cover:
1. Loosen the two
1 4-turn fasteners
in the bottom of the cover by
turning them counterclockwise. Pull
the cover downward to remove it;
the fasteners will remain attached to
the cover.
2. To reinstall the cover, insert the
four plastic tabs on top of the cover
into the corresponding slots, as
shown in the illustration and push
the cover up into the bumper trim.
3. Hold the cover against the
bumper trim and reinstall the two
1 4-turn fasteners by turning them
clockwise.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your authorized dealer or a
reliable trailer dealer if you require assistance.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
227
If you are driving down a long or steep hill, shift to a lower gear.
Do not apply your brakes continuously, as they may overheat
and become less effective.
Anti-lock brake system (ABS)
On ABS-equipped vehicles, a noise from the hydraulic pump motor and
pulsation in the pedal may be observed during ABS braking events. Pedal
pulsation coupled with noise while braking under panic conditions or on
loose gravel, bumps, wet or snowy roads is normal and indicates proper
functioning of the vehicle’s anti-lock brake system. The ABS performs a
self-check after you start the engine and begin to drive away. A brief
mechanical noise may be heard during this test. This is normal. If a
malfunction is found, the ABS warning light will come on. If the vehicle
has continuous vibration or shudder in the steering wheel while braking,
the vehicle should be inspected by an authorized dealer.
The ABS operates by detecting the onset of wheel lockup during brake
applications and compensates for this tendency. The wheels are
prevented from locking even when the brakes are firmly applied.
Using ABS
•In an emergency or when maximum efficiency from the four-wheel
ABS is required, apply continuous force on the brake. The four wheel
ABS will be activated immediately, thus allowing you to retain steering
control of your vehicle and, providing there is sufficient space, will
enable you to avoid obstacles and bring the vehicle to a controlled
stop.
•The anti-lock system does not always reduce stopping distance.
Always leave enough room between your vehicle and the vehicle in
front of you to stop.
•We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
ABS warning lamp
The ABS warning lamp in the
instrument cluster momentarily
illuminates when the ignition is
turned on. If the light does not
illuminate momentarily at start up,
remains on or continues to flash, the ABS needs to be serviced.
ABS
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
238
With the ABS light on, the anti-lock
brake system is disabled and normal
braking is still effective unless the
brake warning light also remains
illuminated with parking brake
released. (If your brake warning lamp illuminates, have your vehicle
serviced immediately.)
Parking brake
Apply the parking brake whenever
the vehicle is parked. To set the
parking brake, press the parking
brake pedal down until the pedal
stops.
The BRAKE warning lamp in the
instrument cluster illuminates and
remains illuminated (when the
ignition is turned ON) until the
parking brake is released.
If the parking brake is fully released, but the brake warning lamp
remains illuminated, the brakes may not be working properly.
See your authorized dealer.
Always set the parking brake fully and make sure that the
gearshift is securely latched in P (Park).
The parking brake is not recommended to stop a moving vehicle.
However, if the normal brakes fail, the parking brake can be used to stop
your vehicle in an emergency. Since the parking brake applies only the
rear brakes, the vehicle’s stopping distance will increase greatly and the
handling of your vehicle will be adversely affected.
P!
BRAKE
P!
BRAKE
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
239
If the vehicle is above 25 mph (40 km/h), momentarily pressing the
AdvanceTracwith RSC button will steadily illuminate the “sliding car”
icon
, however, the AdvanceTracwith RSC system will remain
enabled until the vehicle speed drops below 25 mph. If the vehicle speed
decreases below 25 mph (40 km/h), the system will become deactivated,
but if the vehicle speed subsequently increases to above 25 mph
(40 km/h), the system will again become active. In general, the system
will be active at all times the vehicle speed is above 25 mph (40 km/h).
In R (Reverse), ABS and the Traction Control feature will continue to
function, however ESC and RSC are disabled.
All these conditions are normal during AdvanceTracwith RSC
operation. Refer to the following table.
AdvanceTracwith RSC Features
Button
functions“Sliding
car”
icon
RSC ESCEngine
Traction
ControlBrake
Traction
Control
Default at
start-upOff Enabled Enabled Enabled Enabled
Button
pressed
momentarilyIlluminated
solidDisabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Enabled
Button
pressed and
held more
than five
secondsFlashes
then
illuminated
solidDisabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)
Do not alter or modify your vehicle’s suspension or steering; the
resulting changes to the vehicle’s handling can adversely affect
the AdvanceTracwith RSC system. Also, do not install a stereo
loudspeaker near the front center console or tunnel or under either
front seat as the vibrations can adversely affect the AdvanceTracwith
RSC sensors located in this area.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
243
Passenger compartment fuse panel
The fuse panel is located under the right-hand side of the instrument
panel.
To remove the trim panel for access
to the fuse box, pull the panel
toward you and swing it out away
from the side and remove it. To
reinstall it, line up the tabs with the
grooves on the panel, then push it
shut.
To remove the fuse box cover, press in the tabs on both sides of the
cover, then pull the cover off.
To reinstall the fuse box cover, place the top part of the cover on the
fuse panel, then push the bottom part of the cover until you hear it click
shut. Gently pull on the cover to make sure it is seated properly.
The fuses are coded as follows.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
269