closer because the DCA system cannot de-
celerate the vehicle quickly enough. If this
occurs, the DCA system will sound a warning
chime and blink the system display to notify
the driver to take necessary action. For addi-
tional information, see “Approach warning”
(P. 5-110).
The DCA system helps assist the driver to
keep a following distance to the vehicle
ahead by braking and moving the accelerator
pedal upward in the normal driving condition.
When a vehicle is detected ahead:
The vehicle ahead detection indicator comes
on.
When vehicle approaches a vehicle ahead:
• If the driver’s foot is not on the accelerator
pedal, the system activates the brakes to
decelerate smoothly as necessary. If the
vehicle ahead comes to a stop, the vehicle
decelerates to a standstill within the limita-
tions of the system.
• If the driver’s foot is on the accelerator
pedal, the system moves the accelerator
pedal upward to assist the driver to release
the accelerator pedal.
When brake operation by driver is required:
The system alerts the driver by a warning
chime and blinking the vehicle ahead detec-
tion indicator. If the driver’s foot is on the
accelerator pedal after the warning, the sys-
tem moves the accelerator pedal upward to
assist the driver to switch to the brake pedal.
NOTE:
• The stop lights of the vehicle come on
when braking is performed by the DCA
system.
• When the brake operates, a noise may be
heard. This is not a malfunction.
Overriding the system:
The following driver’s operations override the
system operation:
• When the driver depresses the accelerator
pedal even further while the system is mov-
ing the accelerator pedal upward, the DCA
system control of the accelerator pedal is
canceled.
• When the driver’s foot is on the accelerator
pedal, the brake control by the system is
not operated.
LSD2991
Starting and driving
5-109