brake sensor INFINITI G35 2003 Owners Manual

To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result
in loss of vehicle control.
WARNINGO While driving on a slippery surface,
be careful when braking, accelerating
or downshifting. Abrupt braking or
accelerating could cause the wheels
to skid and result in an accident.
O If the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
Braking will be harder.
ANTI-LOCK BRAKE SYSTEM (ABS) The anti-lock brake system controls the brakes
at each wheel so the wheels will not lock when
braking abruptly or when braking on slippery
surfaces. The system detects the rotation
speed at each wheel and varies the brake fluid
pressure to prevent each wheel from locking
and sliding. By preventing wheel lockup, the
system helps the driver maintain steering con- trol and helps to minimize swerving and spin-
ning on slippery surfaces.
Using the system Depress the brake pedal and hold it down.
WARNING Do not pump the brake pedal. Doing so
may result in increased stopping dis-
tances.
Normal operation The anti-lock brake system will not operate at
speeds below 3 to 6 MPH (5 to 10 km/h) to
completely stop the vehicle. (The speeds will
vary according to road conditions.) When the
anti-lock system senses that one or more
wheels are close to locking up, the actuator
(under the hood) rapidly applies and releases
hydraulic pressure (like pumping the brakes
very quickly). While the actuator is working,
you may feel a pulsation in the brake pedal
and hear a noise or vibration from the actuator
under the hood. This is normal and indicates
that the anti-lock system is working properly.
However, the pulsation may indicate that road conditions are hazardous and extra care is
required while driving.
Self-test feature The anti-lock brake system consists of elec-
tronic sensors, electric pumps, and hydraulic
solenoids controlled by a computer. The com-
puter has a built-in diagnostic feature that tests
the system each time you start the engine and
move the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may
hear a clunk noise and/or feel a pulsation in
the brake pedal. This is normal and is not an
indication of any malfunction. If the computer
senses any malfunction, it switches the anti-
lock brake system OFF and turns on the ABS
warning light in the dashboard. The brake
system will then behave normally, but without
anti-lock assistance.
If the light comes on during the self check, or
while you are driving, you should take your
vehicle to your INFINITI retailer for repair at
your earliest convenience.
WARNING The anti-lock brake system is a sophis-
ticated device, but it cannot prevent ac-
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cidents resulting from careless or dan-
gerous driving techniques. It can help
maintain vehicle control during braking
on slippery surfaces, but remember that
the stopping distance on slippery sur-
faces will be longer than on normal
surfaces, even with the anti-lock sys-
tem. Stopping distances may also be
longer on rough, gravel or snow covered
roads, or if you are using tire chains.
Always maintain a safe distance from
the vehicle in front of you. Ultimately,
the responsibility for safety of yourself
and others rests in the hands of the
driver.
Tire type and condition of tires may also
affect braking effectiveness.
O When replacing tires, install the
specified size of tires on all four
wheels.
O When installing a spare tire, make
sure it is the proper size and type as
specified on the tire placard. See ªVe-
hicle identificationº in the ª10. Tech-
nical and consumer informationº sec- tion for tire placard location. When driving on slippery surfaces or suddenly
avoiding obstacles on roads, the vehicle might
swerve or slip. With the vehicle dynamics
control (VDC) system, sensors detect these
movements and control the braking and en-
gine output to help improve vehicle stability
while driving.
O When the vehicle dynamics control system
is operating, the slip indicator in the instru-
ment panel blinks.
O When only the traction control system por-
tion of the vehicle dynamics control system
is operating, the slip indicator will also blink.
O If the slip indicator blinks, the vehicle is
under slippery conditions. Be sure to drive
carefully. See ªSlip indicator lightº, and ªVe-
hicle dynamics control off indicator lightº in
the ª2. Instruments and controlsº section.
O Indicator light
If a malfunction occurs in the system, the
SLIP and indicator lights come on in
the meter panel.
As long as these warning lights are on, the
traction control function is canceled.
The VDC system uses a Brake Limited Slip
Differential (LSD) system to improve vehicle
traction. The brake LSD system works when
one of the driving wheels is spinning on aVEHICLE DYNAMICS CONTROL
(VDC) SYSTEM
Starting and driving
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TOWING LOAD/SPECIFICATION CHART
Unit: lb (kg)
MAXIMUM
TOWING LOAD 1,000 (454)
MAXIMUM
TONGUE LOAD 110 (49)
TOWING SAFETY
Trailer hitch Choose a proper hitch for your vehicle and
trailer. Make sure the trailer hitch is securely
attached to the vehicle, to help avoid personal
injury or property damage due to sway caused
by crosswinds, rough road surfaces or passing
trucks.
CAUTIONO Do not use axle-mounted hitches.
O The hitch should not be attached to
or affect the operation of the impact-
absorbing bumper.
O Do not modify the vehicle exhaust
system, brake system, etc. to install a
trailer hitch. O To reduce the possibility of additional
damage if your vehicle is struck from
the rear, where practical, remove the
hitch and/or receiver when not in use.
After the hitch is removed, seal the
bolt holes to prevent exhaust fumes,
water or dust from entering the pas-
senger compartment.
O Regularly check that all hitch mount-
ing bolts are securely mounted.
Tire pressures O When towing a trailer, inflate the vehicle
tires to the recommended cold tire pressure
indicated on the tire placard (located on the
inside of the rear left door opening (Sedan),
the driver side center pillar (Coupe).
O Trailer tire condition, size, load rating and
proper inflation pressure should be in ac-
cordance with the trailer and tire manufac-
turers' specifications.
Safety chain Always use a suitable chain between your
vehicle and the trailer. The chain should be
crossed and should be attached to the hitch, not to the vehicle bumper or axle. Be sure to
leave enough slack in the chain to permit
turning corners.
Trailer lights Trailer lights should comply with federal and/or
local regulations. When wiring the vehicle for
towing, connect the stop and tail light pickup
into the vehicle electrical circuit at a point
between the sensor and stop light or light
switch.
Trailer brakes If your trailer is equipped with a braking sys-
tem, make sure it conforms to federal and/or
local regulations and that it is properly in-
stalled.
WARNING Never connect a trailer brake system
directly to the vehicle brake system.
Pre-towing tips O Be certain your vehicle maintains a level
position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle if
it has an abnormal nose-up or nose-down Technical and consumer information
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