Infiniti S51-D owner manual Distance Control Assist OP- Eration

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DISTANCE CONTROL ASSIST OP- ERATION

Always pay attention to the operation of the vehicle and be ready to manually decelerate to maintain the proper following distance. The Distance Control Assist (DCA) system may not be able to decelerate the vehicle under some circumstances.

The DCA system uses a sensor *A located on the front of the vehicle to detect vehicles traveling ahead. The sensor gen- erally detects the signals returned from the reflectors on a vehicle ahead. Therefore, if the sensor cannot detect the reflector on the vehicle ahead, the DCA system may not

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operate.

The following are some conditions in which the sensor cannot detect the signals:

.When the reflector of the vehicle ahead is positioned high on the vehicle (trailer, etc.)

.When the reflector on the vehicle ahead is missing, damaged or covered

.When the reflector of the vehicle ahead is covered with dirt, snow and road spray

.When the snow or road spray from traveling vehicles reduces the sensor’s visibility

.When dense exhaust or other smoke (black smoke) from vehicles reduces the sensor’s visibility

.When excessively heavy baggage is loaded in the rear seat or the luggage room of your vehicle

The DCA system is designed to automati- cally check the sensor’s operation. When the sensor is covered with dirt or is obstructed, the system will automatically be canceled. If the sensor is covered with ice, a transparent or translucent vinyl bag, etc., the DCA system may not detect them. In these instances, the Distance Control

Assist (DCA) system may not be able to decelerate the vehicle properly. Be sure to check and clean the sensor regularly.

The DCA system is designed to help assist the driver to maintain a following distance from the vehicle ahead. The system will decelerate as necessary and if the vehicle ahead comes to a stop, the vehicle decelerates to a standstill. However, the DCA system can only apply up to 25% of the vehicles total braking power. If a vehicle moves into the traveling lane ahead or if a vehicle traveling ahead rapidly decelerates, the distance between vehicles may become closer because the DCA system cannot decelerate 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.

See “Approach warning” later in this section.

This system only brakes and moves the accelerator pedal upward to help assist the driver to maintain a following distance from the vehicle ahead. Acceleration should be operated by the driver.

The DCA system does not control vehicle speed or warn you when you approach stationary and slow moving vehicles. You