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Anti-lock braking system (abs), If so equipped) -20 – NISSAN 2006 Altima User Manual

Page 192

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WARNING

While driving on a slippery surface, be

careful when braking, accelerating or

downshifting. Abrupt braking or accel-

erating could cause the wheels to skid

and result in an accident.

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.

Parking brake break-in

Break-in the parking brake shoes whenever the

stopping effect of the parking brake is weakened

or whenever the parking brake shoes and/or

drum/rotors are replaced, in order to assure the

best brake performance.
This procedure is described in the vehicle service

manual and can be performed by a NISSAN

dealer.

Wet brakes

When the vehicle is washed or driven through

water, the brakes may get wet. As a result, your

braking distance will be longer and the vehicle

may pull to one side during braking.
To dry the brakes, drive the vehicle at a safe

speed while lightly pressing the brake pedal to

heat up the brakes. Do this until the brakes return

to normal. Avoid driving the vehicle at high

speeds until the brakes function correctly.

ANTI-LOCK BRAKING SYSTEM

(ABS) (if so equipped)

The anti-lock braking system controls the brakes

so the wheels do 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 main-

tain steering control and helps to minimize swerv-

ing and spinning 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

distances.

Normal operation

The anti-lock braking system does not operate at

speeds below 3 - 6 MPH (5 - 10 km/h). (The

speeds vary according to road conditions.)

When driving, the anti-lock braking system con-

trols the wheels so they will not lock when brak-

ing abruptly or when braking on a slippery road.

Thus, steering control is increased and swerving

of the vehicle is decreased during emergency

braking. The system detects the wheel rotation

rate and electronically controls the pressure ap-

plied to each brake. Slight vibration on the brake

pedal accompanied by noise usually occurs while

the ABS system is operating. Such vibration and

noise encountered during abrupt braking is not a

problem, but indicates that the system is func-

tioning properly. However, the pulsation may in-

dicate that road conditions are hazardous and

extra care is required while driving.

Self-test feature

The anti-lock braking system consists of elec-

tronic sensors and hydraulic solenoids controlled

by a computer. The computer has a built-in diag-

nostic 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 com-

puter senses any malfunction, it switches the

anti-lock braking system off and turns on the ABS

brake warning light on the instrument panel. The

braking system then operates normally, but with-

out anti-lock assistance.

5-20

Starting and driving

REVIEW COPY—

2006 Altima (l30)

Owners Manual—USA_English (nna)
02/23/06—arosenma