Nissan ARIYA 2023 Owners Manual
9.22.3. Intelligent Emergency Braking with Pedestrian Detection system limitations
Listed below are the system limitations for the Intelligent Emergency Braking with Pedestrian Detection system. Failure to operate the vehicle in accordance with these system limitations could result in serious injury or death.
The Intelligent Emergency Braking with Pedestrian Detection system cannot detect all vehicles, pedestrians or cyclists under all conditions.
The Intelligent Emergency Braking with Pedestrian Detection system does not detect the following objects:
Small pedestrians (including small children) and animals.
Pedestrians in wheelchairs or using mobile transport such as scooters, child-operated toys, or skateboards.
Pedestrians who are seated or otherwise not in a full upright standing or walking position.
Crossing vehicles.
Obstacles on the roadside
Parked vehicles
Junction Assist (where fitted) does not detect the following:
Oncoming vehicle in front of your vehicle.
The Intelligent Emergency Braking with Pedestrian Detection system has some performance limitations.
If a stationary vehicle is in the vehicle's path, the Intelligent Emergency Braking with Pedestrian Detection system will not function when the vehicle is driven at speeds over approximately 100 km/h (62 MPH).
The Intelligent Emergency Braking with Pedestrian Detection system may not function for pedestrians and cyclists (models with cyclist detection) in darkness or in tunnels, even if there is street lighting in the area.
The Intelligent Emergency Braking with Pedestrian Detection system may not function if the vehicle ahead is narrow (for example, a motorcycle).
The Intelligent Emergency Braking with Pedestrian Detection system may not function if the speed difference between the two vehicles is too small.
The Intelligent Emergency Braking with Pedestrian Detection system may not apply braking when the vehicle speed is high in the operation range.
For pedestrians, the Intelligent Emergency Braking with Pedestrian Detection system may not issue the first warning.
The Intelligent Emergency Braking with Pedestrian Detection system may not function properly or detect a vehicle, pedestrian or cyclist (models with cyclist detection) ahead in the following conditions:
In dark or dimly lit conditions, such as at night or in tunnels, including cases where your vehicle’s headlights are off or dim, or the tail lights of the vehicle ahead are off.
When the direction of the camera is misaligned.
Poor visibility (conditions such as rain, snow, fog, dust storms, sandstorms, and road spray from other vehicles)
Driving on a steep downhill slope or roads with sharp curves.
Driving on a bumpy road surface, such as an uneven dirt road.
If dirt, ice, snow or other material is covering the radar sensor area.
Interference by other radar sources.
The camera area of windscreen is fogged up, or covered with dirt, water drops, ice, snow, etc.
Strong light (for example, sunlight or high beams from oncoming vehicles) enters the front camera. Strong light causes the area around the pedestrian or cyclist to be cast in a shadow, making it difficult to see.
A sudden change in brightness occurs. (For example, when the vehicle enters or exits a tunnel or a shaded area or lightning flashes.)
The poor contrast of a person to the background, such as having clothing colour or pattern which is similar to the background.
The pedestrian’s profile is partially obscured or unidentifiable; for example, due to transporting luggage, pushing a stroller, wearing bulky or very loose-fitting clothing or accessories, or being in a unique posture (such as raising hands).
When your vehicle’s position or movement is changed quickly or significantly (for example, lane change, turning vehicle, abrupt steering, sudden acceleration or deceleration).
When your vehicle or the vehicle, pedestrian or cyclist ahead moves quickly or significantly such that the system cannot detect and react in time (for example, pedestrian moving quickly toward the vehicle at close range, vehicle cutting in, changing lanes, making a turn, steering abruptly, sudden acceleration or deceleration).
When the vehicle, pedestrian or cyclist is offset from the vehicle’s forward path.
If the speed difference between the two vehicles is small.
For approximately 15 seconds after starting the EV system.
If the vehicle ahead or oncoming vehicle has a unique or unusual shape, extremely low or high clearance heights, or unusual cargo loading or is narrow (for example, a motorcycle).
When the vehicle, pedestrian or cyclist is located near a traffic sign, a reflective area (for example, water on road), or is in a shadow.
When multiple pedestrians or cyclists are grouped together.
When the view of the pedestrian or cyclist is obscured by a vehicle or other object.
While towing a trailer or other vehicle.
Junction Assist (where fitted) may not operate properly or detect a oncoming vehicle or pedestrian in the following conditions:
When driving in a traffic lane separated by more than 2 lanes from oncoming vehicles while making a right/left turn.
When not heading directly towards an oncoming vehicle during a right/left turn.
When crossing an oncoming vehicle lane and an oncoming vehicle approaches.
When turning sharply or on a very wide curve.
When the centre line is not recognised by the system.
When there are a number of oncoming vehicles following each other in a row.
When the lane is wider or narrower than normal.
When the centre line is located close to a road marker.
The system performance may degrade in the following conditions:
The vehicle is driven on a slippery road.
The vehicle is driven on a slope.
Excessively heavy baggage is loaded in the rear seat or the cargo area of your vehicle.
The system is designed to automatically check the sensor (radar and camera)’s functionality, within certain limitations. The system may not detect blockage of sensor areas covered by ice, snow or stickers, for example. In these cases, the system may not be able to warn the driver properly. Be sure that you check, clean and clear sensor areas regularly.
In some road and traffic conditions, the Intelligent Emergency Braking with Pedestrian Detection system may unexpectedly apply partial braking. When acceleration is necessary, depress the accelerator pedal to override the system.
Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
Braking distances increase on slippery surfaces.
The Intelligent Emergency Braking with Pedestrian Detection system may operate when the following are similar to the outlines of pedestrians or cyclists (models with cyclist detection), or if they are the same size and position as a vehicle's and motorcycle's tail lights.
Paint, a shadow or a pattern on the road, roadside or wall (including faded and unusual road markings).
A shape formed by road structures ahead (such as tunnels, viaducts, traffic sign, reflectors installed on the side of vehicles, reflection sheets, and guardrails), road side objects (trees, buildings) and light sources.
A shape formed by road side objects, such as trees, lighting, shadows, or buildings.
The Intelligent Emergency Braking with Pedestrian Detection system may keep operating when the vehicle ahead is turning right or left.
The Intelligent Emergency Braking with Pedestrian Detection system may operate when your vehicle is approaching and passing a vehicle ahead.
Depending on the road shape (curved road, entrance and exit of the curve, winding road, lane regulation, under construction, etc.), the function may operate temporarily for the oncoming vehicle in front of your vehicle.
The Intelligent Emergency Braking with Pedestrian Detection system may react to:
Objects on the roadside (traffic sign, guardrail, pedestrian or cyclist, vehicle, etc.)
Objects above road (low bridge, traffic sign, etc.)
Objects on the road surface (railroad track, grate, steel plate, etc.)
Objects in the parking garage (beam, etc.)
Pedestrians, cyclists or motorcycles approaching the travelling lane
Pedestrians and cyclists when driving down narrow alleys, for example.
Pedestrians and cyclists who temporarily move into or approach the driving lane to avoid obstacles at the side of the road.
Objects on the road such as trees.
Vehicles, pedestrians, cyclists, motorcycles or objects in adjacent lane or close to the vehicle
Oncoming pedestrians or cyclists
Junction Assist (where fitted) may react to the following while making a right/left turn:
When an oncoming vehicle or a crossing pedestrian has already exited the path of your vehicle.
If you are closely in front of an oncoming vehicle or a crossing pedestrian.
When an oncoming vehicle or a crossing pedestrian stops before entering the path of your vehicle
When an oncoming vehicle turns right or left in front of your vehicle.
Junction Assist (where fitted) may also react to the following:
When oncoming vehicle movement cannot be predicted due to sudden left/right turns or deceleration of the oncoming vehicles.
Braking distances increase on slippery surfaces.
Excessive noise will interfere with the warning chime and the chime may not be heard.
When driving on some roads, such as winding, hilly, curved, narrow roads, or roads which are under construction or on a slope, the sensor may detect vehicles in a different lane, or may temporarily not detect a vehicle travelling ahead. This may cause the system to work inappropriately.
The detection of vehicles may also be affected by vehicle operation (steering manoeuvre or travelling position in the lane, etc.) or vehicle condition. If this occurs, the system may warn you by blinking the system indicator and sounding the chime unexpectedly. You will have to manually control the proper distance to the vehicle travelling ahead.