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Traction control system (tcs) (if so equipped) -20 – NISSAN 2009 Quest User Manual

Page 276

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Self-test feature

The ABS includes electronic sensors, electric
pumps, hydraulic solenoids and a computer. The
computer 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 does not indicate a
malfunction. If the computer senses a malfunc-
tion, it switches the ABS off and illuminates the
ABS warning light on the instrument panel. The
brake system then operates normally, but without
anti-lock assistance.

If the ABS warning light illuminates during the
self-test or while driving, have the vehicle
checked by a NISSAN dealer.

When accelerating on slippery surfaces the tire
may spin or slip. With the vehicle Traction Control
System (TCS), sensors detect these movements
and control the braking and engine output to help
improve vehicle road traction.

● When the TCS is operating, the

indicator in the instrument panel blinks.

● If the

indicator blinks, the vehicle

may be under slippery conditions. Be sure to
drive carefully. See “Slip indicator light” and
“Traction Control System (TCS) off indicator
light” in the “Instruments and controls” sec-
tion of this manual.

● If a malfunction occurs in the system,

the

and

indicator

lights

come on in the instrument panel.

As long as these lights are on, the traction control
function is canceled. The vehicle will behave like
a vehicle without the system.

WARNING

The Traction Control System is de-

signed to help maintain traction with
the road surface but does not prevent
accidents due to abrupt steering opera-
tion at high speeds or by careless or
dangerous driving techniques. Reduce
vehicle speed and be especially careful
when driving and cornering on slippery
surfaces and always drive carefully.

If brake related parts such as brake

pads, rotors and calipers are not stan-
dard equipment or are extremely dete-
riorated, the Traction Control System
may not operate properly and the
indicator light may come on.

Do not modify the vehicle’s suspension.

If suspension parts such as shock ab-
sorbers, struts, springs, bushings and
wheels are not standard equipment or
are extremely deteriorated, the Traction
Control System may not operate prop-
erly and the

indicator light may

come on.

TRACTION CONTROL SYSTEM (TCS)
(if so equipped)

5-20

Starting and driving

REVIEW COPY—

2009 Quest (van)

Owners Manual—USA_English (nna)
07/17/08—debbie