Infiniti QX56 (Z62). Manual - part 259

DAS

OPERATION

DAS-73

< SYSTEM DESCRIPTION >

[DCA]

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OPERATION

Switch Name and Function

INFOID:0000000006223503

Menu Displayed by Pressing Each Switch

INFOID:0000000006223504

SYSTEM DISPLAY

DISPLAY AND WARNING LAMP

System Control Condition Display

The DCA system switch indicator illuminates and the system is turned ON by pressing the dynamic driver
assistance switch at the system OFF. 

JSOIA0365ZZ

No.

Switch name

Description

1

Dynamic driver assistance switch

Turns the DCA system ON/OFF
(When the setting of the DCA system on the navigation screen is ON)

2

DCA system setting screen
(Navigation system settings screen)

DCA system settings can be switched between ON and OFF

JSOIA0175ZZ

No.

Switch name

Description

1

ICC system warning lamp

This indicates that an abnormal condition is present in DCA system

2

DCA system switch indicator

Indicates that DCA system is ON

3

Vehicle ahead detection indicator

Indicates whether it detects a vehicle ahead
NOTE:
The vehicle ahead detection indicator turns OFF when the no operation condition is sat-
isfied

DAS-74

< SYSTEM DESCRIPTION >

[DCA]

OPERATION

Approach Warning Display

• If own vehicle comes closer to the vehicle ahead due to rapid deceleration of that vehicle or if another vehi-

cle cuts in, the system warns the driver with the chime and DCA system display. Decelerate by depressing
the brake pedal to maintain a safe vehicle distance if:

- The chime sounds.
- The vehicle ahead detection indicator blinks.
• The warning chime may not sound in some cases when there is a short distance between vehicles. Some

examples are:

- When the vehicles are traveling at the same speed and the distance between vehicles is not changing
- When the vehicle ahead is traveling faster and the distance between vehicles is increasing
- When a vehicle cuts in near own vehicle
• The warning chime will not sound when own vehicle approaches vehicles that are parked or moving slowly.

Warning Lamp Display

Condition

Display on combination meter

Operation status

Vehicle ahead not detected

Vehicle ahead detected

JSOIA0207ZZ

JSOIA0208ZZ

Condition

Display on combination meter

When the system judges that the brake operation by the driver is necessary

JSOIA0209ZZ

DAS

OPERATION

DAS-75

< SYSTEM DESCRIPTION >

[DCA]

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NOTE:
When the DCA system is automatically canceled, the cancellation condition can be displayed on “WORK
SUPPORT” of CONSULT-III (ICC/ADAS).

Condition

Description

Display on combination meter

Warning 

display

When the dynamic driver assistance 
switch is turned ON with settings of 
DCA system and LDP system OFF

The DCA system is not activated. The DCA 
system switch indicator blinks.

• When the VDC or ABS (including the 

TCS) operates

• When the VDC is turned OFF
• When the SNOW mode switch is 

turned ON

• When the 4WD shift switch is turned 

to not AUTO

• When driving into a strong light (i.e., 

sunlight)

The DCA system is automatically can-
celed. The chime will sound and the DCA 
system switch indicator will blink.
NOTE:
The system operates if the dynamic driver 
assistance switch is turned OFF

⇒

ON after 

the condition improves. 

When the sensor window is dirty, mak-
ing it impossible to detect a vehicle 
ahead

The DCA system is automatically can-
celed. The chime sounds and the ICC sys-
tem warning lamp will come on and the 
“CLEAN SENSOR” indicator will appear.
NOTE:
Stop the vehicle in a safe location and turn 
the ignition switch OFF. Clean the dirty 
area with soft cloth. The system returns to 
normal condition when turning the ignition 
switch ON again. 

When the DCA system is not operating 
properly

The chime sounds and the ICC system 
warning lamp will come on.
NOTE:
Turn the ignition switch OFF, and then turn 
the ignition switch ON again. If there is no 
malfunction, the system returns to the nor-
mal condition. 

JSOIA0210ZZ

JSOIA0326ZZ

JSOIA0212ZZ

DAS-76

< SYSTEM DESCRIPTION >

[DCA]

HANDLING PRECAUTION

HANDLING PRECAUTION

Precautions for Distance Control Assist

INFOID:0000000006223505

• If the vehicle ahead comes to a stop, the vehicle decelerates to a standstill within the limitations of the sys-

tem. The system will cancel once it judges that the vehicle has come to a standstill with a warning chime. To
prevent the vehicle from moving, the driver must depress the brake pedal.

• The DCA system will not apply brake control while the driver is depressing the accelerator pedal.
• This system is only an aid to assist the driver and is not a collision warning or avoidance device. It is the

driver's responsibility to stay alert, drive safely and be in control of the vehicle at all times.

• This system will not adapt automatically to road conditions. Do not use the system on roads with sharp

curves, or on icy roads, in heavy rain or in fog.

• The distance sensor will not detect under most conditions.
- Stationary and slow moving vehicles
- Pedestrians or objects in the roadway
- Oncoming vehicles in the same lane
- Motorcycles traveling offset in the travel lane
• As there is a performance limit to the distance control function, never rely solely on the DCA system. This

system does not correct careless, inattentive or absent-minded driving, or overcome poor visibility in rain,
fog, or other bad weather. Decelerate the vehicle speed by depressing the brake pedal, depending on the
distance to the vehicle ahead and the surrounding circumstances in order to maintain a safe distance
between vehicles.

• The system may not detect the vehicle in front of own vehicle in certain road or weather conditions. To avoid

accidents, never use the DCA system under the following conditions.

- On roads with sharp curves
- On slippery road surfaces such as on ice or snow, etc.
- On off-road surfaces such as on sand or rock, etc.
- During bad weather (rain, fog, snow, etc.)
- When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle
- When rain, snow or dirt adhere to the system sensor
- On steep downhill roads (frequent braking may result in overheating the brakes)
- On repeated uphill and downhill roads
- When towing a trailer or other vehicle
• In some road or traffic conditions, a vehicle or object can unexpectedly come into the sensor detection zone

and cause automatic braking. Driver may need to control the distance from other vehicles using the acceler-
ator pedal. Always stay alert and avoid using the DCA system when it is not recommended in this section.

• 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 own vehicle
• The DCA system is designed to automatically 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 trans-
parent or translucent vinyl bag, etc., the DCA system may not detect them. In these instances, the DCA sys-
tem 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 decel-
erates to 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 dis-
tance 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.

• The DCA system does not control vehicle speed or warn when driver approach stationary and slow moving

vehicles. Driver must pay attention to vehicle operation to maintain proper distance from vehicles ahead.