Page 1217 of 1808
position.
The system may not detect objects at
speeds above 6 MPH (10 km/h) and may
not detect certain angular or moving
objects.
Refer to the illustration for approximate
zone coverage areas. As you move closer
to the obstacle, the rate of the tone
increases. When you move even closer
to the obstacle, the tone will sound
continuously.
The sensitivity level of the sonar can be
adjusted (higher or lower) in the sonar
setting display. (
Page 1218 of 1808
SONAR SYSTEM OFF SWITCHThe sonar system OFF switch on the
lower side of the instrument panel allows
the driver to turn the sonar system on
and off. To turn the sonar system on and
off, the ignition switch must be in the ON
position. The indicator light
on the
switch will turn off when the system is
turned off. If the indicator light flashes it
may indicate a malfunction in the sonar
system.
The sonar system will turn on automati-
cally under the following conditions.
. When the shift lever is placed in the
position. .
When vehicle speed decreases below
approximately 6 MPH (10 km/h).
. When the ignition switch is placed in
the OFF position and turned back to
the ON position again.
Page 1219 of 1808
Page 1220 of 1808
Page 1221 of 1808
WARNING
Using the systemDepress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, but do not pump the brakes.
The ABS will operate to prevent the
wheels from locking up. Steer the vehicle
to avoid obstacles.
Page 1222 of 1808

The Vehicle Dynamic Control (VDC) sys-
tem uses various sensors to monitor
driver inputs and vehicle motion. Under
certain driving conditions, the VDC sys-
tem helps to perform the following func-
tions.
.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 con-
trol 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 condi-
tions).
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 meter 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.
. The VDC mode can be changed using
the VDC setup switch. (
“VDC,
transmission and suspension setup
switches” page 5-25)
(
“Vehicle Dynamic Control (VDC)
warning light” page 2-34,
“Vehicle
Dynamic Control (VDC) off indicator light”
page 2-33)
If a malfunction occurs in the system, the
VDC warning light
illuminates in the
meter. The VDC system automatically
turns off.
The VDC setup switch is used to turn off
the VDC system. The VDC off indicator
illuminates to indicate the VDC sys-
tem is off.
When the VDC setup switch is used to
turn off the system, the VDC system still
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM
Page 1223 of 1808

operates to prevent one drive wheel from
slipping by transferring power to a non
slipping drive wheel. 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.
(
“Vehicle Dynamic Control (VDC)
warning light” page 2-34,
“Vehicle
Dynamic Control (VDC) off indicator light”
page 2-33)
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.
may illuminate.
. If brake related parts such as
brake pads, rotors and calipers
are not standard equipment 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 standard equipment or are
extremely deteriorated, the VDC
warning light
may illuminate.
. When driving on extremely in-
clined surfaces such as higher
banked corners, the VDC system
may not operate properly and the
VDC warning light
may illumi-
nate. Do not drive on these types of roads.
. When driving on an unstable sur-
face such as a turntable, ferry,
elevator or ramp, the VDC warn-
ing light
may illuminate. This
is not a malfunction. Restart the
engine after driving onto a stable
surface.
. If wheels or tires other than the
those recommended are used,
the VDC system may not operate
properly and the VDC warning
light
may illuminate.
. The VDC system is not a substi-
tute for winter tires or tire chains
on a snow covered road.
NOTE:
. Always make sure the VDC is ON
before driving the vehicle by check-
ing that the VDC OFF indicator lights
on the meter and the VDC set-up
switch are not illuminated.
The GT-R is a high performance
vehicle and the VDC must be on/
activated to provide proper power-
train operation and intended driva-
bility.Starting and driving
5-55
Page 1224 of 1808