●
When installing a spare tire, make sure
it is the proper size and type as speci-
fied on the Tire and Loading Informa-
tion label. For tire placard location in-
formation, refer to “Tire and Loading
Information label” in the “Technical and
consumer information” section of this
manual.
●
Refer to “Wheels and tires” in the
“Maintenance and do-it-yourself” sec-
tion of this manual.
When accelerating or driving on slippery sur-
faces, the tires may spin or slide. With the Vehicle
Dynamic Control (VDC) system, sensors detect
these movements and control the braking and
engine output to help improve vehicle stability.
●
When the vehicle dynamic control (VDC)
system is operating, the slip indicator in the
instrument panel blinks.
●
If the slip indicator blinks, the road condi-
tions are slippery. Be sure to adjust your
speed and driving to these conditions. See
“Slip indicator light”, and “Vehicle dynamic
control (VDC) off indicator light” in the “In-
struments and controls” section.
●
Indicator light
– If malfunction occurs in the system,
the
and
indicator lights
come on in the instrument panel.
– If the 4WD transfer case is shifted into
4LO the
indicator light will come
on and the VDC system will be turned off.
See “Transfer case shifting procedures”
earlier in this section.
– As long as these indicator lights are on,
the traction control function is canceled.
If the vehicle is operated with the vehicle dynamic
control system off using the VDC OFF switch,
most VDC functions will be turned off. The VDC
system will still try to transfer power from a slip-
ping drive wheel to one with more traction when
the VDC system switch is OFF. The Slip indicator
will flash if wheel spin is detected. The ABS will
still operate with the VDC system off.
When the VDC system is operating, you may feel
a pulsation in the brake pedal and hear a noise or
vibration from under the hood. This is normal and
indicates that the VDC system is working prop-
erly.
The computer has a built in diagnostic feature
that tests the system each time you start the
engine and move the vehicle forward or in reverse
at a slow speed. 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 a malfunction.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-48
Starting and driving
Z
REVIEW COPY—
2006 Infiniti QX56 (iwz)
Owners Manual—USA_English (nna)
06/18/05—debbie
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