Vehicle Dynamic Control (VDC) system
The Vehicle Dynamic Control (VDC) system
uses various sensors to monitor driver
inputs and vehicle motion. Under certain
driving conditions, the VDC system helps
to perform the following functions.
► Controls brake pressure to reduce
wheel slip on one slipping drive wheel
so power is transferred to a non
slipping drive wheel on the same axle.
► Controls brake pressure and engine
output to reduce drive wheel slip based
on vehicle speed (traction control function).
► Controls brake pressure at individual
wheels and engine output to help the
driver maintain control of the vehicle in
the following conditions:
— understeer (vehicle tends to not
follow the steered path despite
increased steering input)
— oversteer (vehicle tends to spin due
to certain road or driving conditions).
The VDC system can help the driver to
maintain control of the vehicle, but it
cannot prevent loss of vehicle control in
all driving situations.
When the VDC system operates, the VDC
warning light in the instrument
panel
flashes so note the following:
► The road may be slippery or the system
may determine some action is required
to help keep the vehicle on the steered
path.
► 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 properly.
► Adjust your speed and driving to the
road conditions.
If a malfunction occurs in the system, the
VDC warning light illuminates in
the
instrument panel. The VDC system automatically
turns off.
The VDC OFF switch is used to turn off the
VDC system. The VDC off indicator
illuminates to indicate the VDC system is
off. When the VDC switch is used to turn off
the system, the VDC system still operates
to prevent one drive wheel from slipping by
transferring power to a non slipping drive
wheel. The VDC warning light
flashes if
this occurs. All other VDC functions are off,
and the VDC warning light will not
flash. The VDC system is automatically
reset to on when the ignition switch is
placed in the off position then back to the
on position.
When the 4L position is selected with the
4WD shift switch, the VDC system is
disabled and the VDC off indicator light
illuminates (for 4WD models).
See “Vehicle Dynamic Control (VDC) warning
light” in the “2. Instruments and
controls” section and “Vehicle Dynamic
Control (VDC) off indicator light” in the “2.
Instruments and controls” section.
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.
WARNING
► The VDC system is designed to help
improve driving stability but does not
prevent accidents due to abrupt steering
operation 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.
► Do not modify the vehicle’s suspension.
If suspension parts such as shock
absorbers, struts, springs, stabilizer
bars, bushings and wheels are not
INFINITI recommended for your vehicle
or are extremely deteriorated, the VDC
system may not operate properly. This
could adversely affect vehicle handling
performance, and the VDC warning light
may illuminate.
► If brake related parts such as brake
pads, rotors and calipers are not INFINITI
recommended or are extremely deteriorated,
the VDC system may not operate
properly and the VDC warning light
may illuminate.
► If engine control related parts are not
INFINITI recommended or are extremely
deteriorated, the VDC warning light
may illuminate.
► When driving on extremely inclined
surfaces such as higher banked corners,
the VDC system may not operate properly
and the VDC warning light may
illuminate. Do not drive on these types
of roads.
► When driving on an unstable surface
such as a turntable, ferry, elevator or
ramp, the VDC warning light may
illuminate. This is not a malfunction.
Restart the engine after driving onto a
stable surface.
► If wheels or tires other than the INFINITI
recommended ones are used, the VDC
system may not operate properly and
the VDC warning light may
illuminate.
► The VDC system is not a substitute for
winter tires or tire chains on a snow
covered road.
Vehicle Dynamic Control (VDC) OFF switch
The vehicle should be driven with the Vehicle Dynamic Control (VDC) system ON for most driving conditions. When the vehicle is stuck in mud or snow, the VDC system reduces the engine output to reduce wheel spin. The engine speed will be reduced even if the accelerator is depressed to the floor. If maximum engine power is needed to free a stuck vehicle, turn the VDC system off. To turn off the Vehicle Dynamic Control (VDC) system, push the VDC OFF switch.
The VDC off indicator light will illuminate. Push the VDC OFF switch again or restart the engine to turn ON the system.
See also:
Emission control system warranty
Your INFINITI is covered by the following emission warranties:
For USA
1. Emission Defects Warranty
2. Emissions Performance Warranty
Details of these warranties may be found with other vehicle ...
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A key number plate is supplied with your
keys. Record the key number and keep it in
a safe place (such as your wallet), not in
the vehicle. If you lose your keys, see an
INFINITI retailer for ...