![background image](/i/infiniti/147975/infiniti-m35-2009/h/infiniti-m35-2009-330.png)
Normal operation
The ABS operates at speeds above 3 to 6 MPH
(5 to 10 km/h). The speed varies according to
road conditions.
When the ABS senses that one or more wheels
are close to locking up, the actuator rapidly
applies and releases hydraulic pressure. This
action is similar to pumping the brakes very
quickly. You may feel a pulsation in the brake
pedal and hear a noise from under the hood or
feel a vibration from the actuator when it is
operating. This is normal and indicates that the
ABS is operating properly. However, the pulsa-
tion may indicate that road conditions are haz-
ardous and extra care is required while driving.
The Vehicle Dynamic Control (VDC) system uses
various sensors to monitor driver inputs and
vehicle motion. Under certain driving situations,
the system will control braking and engine
output to help keep the vehicle on its steered
path.
●
When the VDC system is operating, the
“SLIP” indicator in the instrument panel
blinks.
●
If the “SLIP” indicator blinks, the road con-
ditions may be slippery. Be sure to adjust
your speed and driving to these conditions.
Be sure to drive carefully. (See “Slip indica-
tor light” in the “2. Instruments and con-
trols” section, and “Vehicle Dynamic Control
(VDC) off indicator light” in the “2. Instru-
ments and controls” section.)
●
Indicator light
If a malfunction occurs in the system, the
“SLIP” and “VDC OFF” indicator lights illumi-
nate in the instrument panel. As long as
these indicators are illuminated, the VDC
system function is canceled.
The VDC system uses an Active Brake Limited
Slip (ABLS) function to improve vehicle traction.
The ABLS system works when one of the driving
wheels is spinning on a slippery surface. The
ABLS system brakes the spinning wheel, which
distributes the driving power to the other drive
wheel. If the vehicle is operated with the VDC
OFF switch pushed and the VDC system turned
off, all VDC systems will be turned off. The ABLS
system and ABS will still operate with the VDC
system off. If the ABLS system is activated, the
“SLIP” indicator will blink and 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.
While the VDC system is operating, you may feel
a pulsation in the brake pedal and hear a noise
or feel a vibration from under the hood. This is
normal and indicates that the VDC system is
working properly.
The VDC system 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 forward or backward. 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
5-54
Starting and driving
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08/12/08—pattie
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