Lane departure prevention (LDP) system

Lane departure prevention (LDP) system  - Lane Departure Warning (LDW) system/ Lane Departure Prevention (LDP) system 
(if so equipped) - Starting and driving - Infiniti JX Owners Manual - Infiniti JX

Precautions on LDP system

WARNING
● The LDP system will not steer the vehicle or prevent loss of control. It is the drivers responsibility to stay alert, drive safely, keep the vehicle in the traveling lane, and be in control of vehicle at all times.
● The LDP system is primarily intended for use on well-developed freeways or highways. It may not detect the lane markers in certain roads, weather or driving conditions.
● Using the LDP system under some conditions of road, lane marker or weather, or when you change lanes without using the lane change signal could lead to an unexpected system operation. In such conditions, you need to correct the vehicles direction with your steering operation to avoid accidents.
● When the LDP system is operating, avoid excessive or sudden steering maneuvers.

Otherwise, you could lose control of the vehicle.
● The LDP system will not operate at speeds below approximately 45 MPH (70 km/h) or if it cannot detect lane markers.
● The LDP system may not function properly under the following conditions, and do not use the LDP system:

During bad weather (rain, fog, snow, wind, etc.).
When driving on slippery roads, such as on ice or snow, etc.
When driving on winding or uneven roads.
When there is a lane closure due to road repairs.
When driving in a makeshift lane.
When driving on roads where the lane width is too narrow.
When driving without normal tire conditions (for example, tire wear, low tire pressure, installation of spare tire, tire chains, non-standard wheels).
When the vehicle is equipped with nonoriginal brake parts or suspension parts.
When you are towing a trailer.

● If the LDP system malfunctions, it will cancel automatically. The LDP system warning light (orange) will illuminate in the display.
● If LDP system warning light (orange) illuminates in the display, pull off the road to a safe location and stop the vehicle. Turn the engine off and restart the engine. If the LDP system warning light (orange) continues to illuminate, have the LDP system checked by an INFINITI retailer.
● Excessive noise will interfere with the warning chime sound, and the chime may not be heard.

The functions of the LDP system (warning and brake control assist) may or may not operate properly under the following conditions:

● On roads where there are multiple parallel lane markers; lane markers that are faded or not painted clearly; yellow painted lane markers; non-standard lane markers; or lane markers covered with water, dirt, snow, etc.
● On roads where discontinued lane markers are still detectable.
● On roads where there are sharp curves.
● On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or lines remaining after road repairs. (The LDP system could detect these items as lane markers.)
● On roads where the traveling lane merges or separates.
● When the vehicles traveling direction does not align with the lane marker.
● When traveling close to the vehicle in front of you, which obstructs the lane camera unit detection range.
● When rain, snow or dirt adheres to the windshield in front of the lane camera unit.
● When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly.
● When strong light enters the lane camera unit. (For example, the light directly shines on the front of the vehicle at sunrise or sunset.)
● When a sudden change in brightness occurs.

(For example, when the vehicle enters or exits a tunnel or under a bridge.) While the LDP system is operating, you may hear a sound of brake operation. This is normal and indicates that the LDP system is operating properly.

LDP system operation

LDP ON indicator light (green)/ Warning light (orange)
LDP ON indicator light (green)/ Warning light (orange)

The LDP system provides a lane departure warning and brake control assistance when the vehicle is driven at speeds of approximately 45 MPH (70 km/h) and above. When the vehicle approaches either the left or the right side of the traveling lane, a warning chime will sound and the Lane departure warning indicator light on the instrument panel will blink to alert the driver.

Then, the LDP system will automatically apply the brakes for a short period of time to help assist the driver to return the vehicle to the center of the traveling lane.

The warning and assist functions will stop when the vehicle returns to a position inside of the lane marker.

Dynamic driver assistance switch
Dynamic driver assistance switch

To turn on the LDP system, push the dynamic driver assistance switch on the steering wheel after starting the engine. The LDP ON indicator light (green) on the instrument panel will illuminate.

Push the dynamic driver assistance switch again to turn off the LDP system. The LDP ON indicator light will turn off.

How to enable/disable the LDP system

1. Press the Settings displays in the vehicle information display. Use the to select Driver Assistance. button until Settings displays in the vehicle information display. Use the to select Driver Assistance.

Then press the ENTER button.
2. Select Driver Aids, and press the ENTER button.
3. To set the LDP system to on or off, use the ● Select Lane and press the ENTER button. buttons to navigate in the menu and use the ENTER button to select or change an item:

● Select Lane and press the ENTER button.

To turn on the warning, use the ENTER button to check box for Warning (LDW)
To turn on the system, use the ENTER button to check box for Assistance (LDP)

Automatic deactivation

Condition A:

The warning and assist functions of the LDP system are not designed to work under the following conditions:

● When you operate the lane change signal and change the traveling lanes in the direction of the signal. (The LDP system will be deactivated for approximately 2 seconds after the lane change signal is turned off.)
● When the vehicle speed lowers to less than approximately 45 MPH (70 km/h).

After the above conditions have finished and the necessary operating conditions are satisfied, the warning and assist functions will resume.

Condition B:

The assist function of the LDP system is not designed to work under the following conditions (warning is still functional):

● When the brake pedal is depressed.
● When the steering wheel is turned as far as necessary for the vehicle to change lanes.
● When the accelerator pedal is depressed while the brake control assist is provided.
● When the Intelligent Cruise Control (ICC) approach warning occurs.
● When the hazard warning flashers are operated.
● When driving on a curve at high speed.

After the above conditions have finished and the necessary operating conditions are satisfied, the LDP brake control assist function will resume.

Condition C:

When the following messages appear in the meter display, a chime will sound and the LDP system will be turned off automatically.

Unavailable Road is slippery :

● Unavailable Road is slippery:

When the VDC system (except TCS function) or ABS operates.
● Unavailable VDC OFF:

When the VDC system is turned off.
● Unavailable Snow mode active:

When the drive mode select switch is turned to the SNOW mode.

Action to take:

When the above conditions no longer exist, turn off the LDP system. Push the dynamic driver assistance switch again to turn the LDP system back on.

Temporary disabled status at high temperature:

If the vehicle is parked in direct sunlight under high temperature conditions (over approximately 104F (40C)) and then the LDP system is turned on, the LDP system may be deactivated automatically and the following message will appear on the meter display.

Unavailable High Cabin Temp.

When the interior temperature is reduced, the system will resume operating automatically.

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