Limitations of Forward Collision-Avoidance Assist
Forward Collision-Avoidance Assist may not operate normally, or it may operate unexpectedly under the following circumstances:
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The detecting sensor or the surroundings are contaminated or damaged
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The temperature around the front view camera is high or low due to surrounding environment
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The camera lens is contaminated due to tinted, filmed or coated windscreen, damaged glass, or sticky foreign material (sticker, bug, etc.) on the glass
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Moisture is not removed or frozen on the windscreen
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Washer fluid is continuously sprayed, or the wiper is on
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Driving in heavy rain or snow, or thick fog
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The field of view of the front view camera is obstructed by sun glare
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Streetlight or light from oncoming traffic is reflected on the wet road surface, such as a puddle on the road
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An object is placed on the instrument panel
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Your vehicle is being towed
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The surrounding is very bright, or the surrounding is very dark, such as in a tunnel, etc.
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The brightness changes suddenly, for example when entering or exiting a tunnel
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The brightness outside is low, and the headlamps are not on or are not bright
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Only part of the vehicle, powered two-wheeler, pedestrian or cyclist is detected
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The vehicle or powered two-wheeler in front is a bus, heavy truck, truck with an unusually shaped cargo, trailer, etc.
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The vehicle or powered two-wheeler in front has no taillights, taillights are located unusually, etc.
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The brightness outside is low, and the taillights are not on or are not bright
- The rear of the front vehicle is small, or the vehicle does not look normal, such as when the vehicle is tilted, overturned, or the side of the vehicle is visible, etc.
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The front vehicle's ground clearance is low or high
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A vehicle, powered two-wheeler, pedestrian or cyclist suddenly cuts in front
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The bumper around the front radar is impacted, damaged, or the front radar is out of position
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The temperature around the front radar is high or low
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Driving through a tunnel or iron bridge
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Driving in vast areas where there are few vehicles or structures (for example, desert, meadow, suburb, etc.)
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Driving near areas containing metal substances, such as a construction zone, railroad, etc.
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A material is near that reflects very well on the front radar, such as a guardrail, nearby vehicle, etc.
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The cyclist in front is on a bicycle made of material that does not reflect on the front radar
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The vehicle or powered two-wheeler in front is detected late
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The vehicle or powered two-wheeler in front is suddenly blocked by an obstacle
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The vehicle or powered two-wheeler in front suddenly changes a lane or suddenly reduces speed
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The vehicle or powered two-wheeler in front is bent out of shape
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The vehicle in front is covered with snow
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You are departing or returning to the lane
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Unstable driving
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You are on a roundabout and the vehicle or powered two-wheeler in front is not detected
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You are continuously driving in a circle
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The vehicle or powered two-wheeler in front has an unusual shape
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The vehicle or powered two-wheeler in front is driving uphill or downhill
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The pedestrian or cyclist is not fully detected, for example, if the pedestrian is leaning over or is not fully walking upright
N_TK25E151The illustration shows the image the front view camera and front radar are capable of detecting as a vehicle, powered two-wheeler, pedestrian and cyclist.
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The pedestrian or cyclist is wearing clothing or equipment that makes it difficult to detect
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The pedestrian or cyclist in front is moving very quickly
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The pedestrian or cyclist in front is short or is posing a low posture
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The pedestrian or cyclist in front has impaired mobility or moving intersected with the driving direction
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There is a group of pedestrians, cyclists or a large crowd in front
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The pedestrian or cyclist is wearing clothing that easily blends into the background, making it difficult to detect
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The pedestrian or cyclist is difficult to distinguish from the similarly shaped structure in the surroundings
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You are driving by a pedestrian, cyclist, traffic signs, structures, etc., near the intersection
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When driving in the following places
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Driving through steam, smoke, or shadow
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Driving through a tunnel or iron bridge
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Driving in large areas where there are few vehicles or structures (i.e., desert, meadow, suburb, etc.)
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Driving in a car park
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Driving through tollgate, construction areas, partially paved roads, bumpy roads, speed bumps, etc.
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Driving near areas containing metal substances, such as a construction zone, railroad, etc.
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Driving on an inclined road, curved road, etc.
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Driving through a roadside with trees or streetlights
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Driving through a narrow road where trees or grass are overgrown
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There is interference by electromagnetic waves, such as driving in an area with strong radio waves or electrical noise
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The adverse road conditions cause excessive vehicle vibrations whilst driving
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Your vehicle height is low or high due to heavy loads, abnormal tyre pressure, etc.
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The vehicle is installed with a snow chain, spare tyre or different size wheel.
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Limitations |
Details |
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Forward Collision-Avoidance Assist may not detect other vehicles, powered two-wheelers, pedestrians or cyclists in front of you when driving on curved roads adversely affecting the performance of the sensors. This may result in no warning, braking assist or steering assist (if equipped) when necessary. When driving on a curve, you must maintain a safe braking distance, and if necessary, steer the vehicle and depress the brake pedal to reduce your driving speed in order to maintain a safe distance. Forward Collision-Avoidance Assist may detect a vehicle, powered two-wheeler, pedestrian or cyclist in the next lane or outside the lane when driving on a curved road. If this occurs, Forward Collision-Avoidance Assist may unnecessarily warn the driver and control the brake. Always check the traffic conditions around the vehicle. |
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Forward Collision-Avoidance Assist may not detect other vehicles, powered two-wheelers, pedestrians or cyclists in front of you whilst driving uphill or downhill, adversely affecting the performance of the sensors. This may result in unnecessary warning or braking assist or, even if necessary, warning or braking assist may not operate properly. Also, vehicle speed may rapidly decrease when a vehicle, powered two-wheeler, pedestrian or cyclist ahead is suddenly detected. Always have your eyes on the road whilst driving uphill or downhill and if necessary, steer your vehicle and depress the brake pedal to reduce your driving speed in order to maintain a safe distance. |
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When a vehicle or powered two-wheelers (2) moves into your lane from an adjacent lane, it cannot be detected by the sensor until it is in the sensor's detection range. Forward Collision-Avoidance Assist may not immediately detect a vehicle or powered two-wheelers when a vehicle or powered two-wheelers changes lanes abruptly. In this case, you must maintain a safe braking distance, and if necessary, steer your vehicle and depress the brake pedal to reduce your driving speed in order to maintain a safe distance. When a vehicle (2) in front of you merges out of the lane, Forward Collision-Avoidance Assist may not immediately detect a vehicle or powered two-wheelers (3) that is now in front of you. In this case, you must maintain a safe braking distance, and if necessary, steer your vehicle and depress the brake pedal to reduce your driving speed in order to maintain a safe distance. |
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If the vehicle in front of you has cargo that extends rearward from the cab, or when the vehicle in front of you has higher ground clearance, additional special attention is required. Forward Collision-Avoidance Assist may not be able to detect the cargo extending from the vehicle. In these instances, you must maintain a safe braking distance from the rearmost object, and if necessary, steer your vehicle and depress the brake pedal to reduce your driving speed in order to maintain distance. |





