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Hyundai Tucson: Forward Collision-Avoidance Assist Malfunction and Limitations

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual / Driver assistance system / Forward Collision-Avoidance Assist (FCA) (Sensor fusion) / Forward Collision-Avoidance Assist Malfunction and Limitations

Forward Collision-Avoidance Assist malfunction

When Forward Collision-Avoidance

When Forward Collision-Avoidance Assist is not working properly, the 'Check Forward Safety system (s)' warning message will appear, and the and warning lights will illuminate on the warning lights will illuminate on the cluster. Have the vehicle inspected by an authorized HYUNDAI dealer.

Forward Collision-Avoidance Assist disabled

When the front windshield where the

When the front windshield where the front view camera is located, front radar cover or sensor is covered with foreign material, such as snow or rain, it can reduce the  detecting performance and temporarily limit or disable Forward Collision-Avoidance Assist.

If this occurs the 'Forward Safety system (s) disabled. Camera obscured' or the 'Forward Safety system (s) disabled.

Radar blocked' warning message, and the warning lights willand illuminate on the cluster. warning lights will illuminate on the cluster.

Forward Collision-Avoidance Assist will operate normally when when such snow, rain or foreign material is removed.

If Forward Collision-Avoidance Assist does not operate normally after obstruction (snow, rain, or foreign material) is removed, Have the vehicle inspected by an authorized HYUNDAI dealer.

WARNING

  • Even though the warning message or warning light does not appear on the cluster, Forward Collision-Avoidance Assist may not properly operate.
  • Forward Collision-Avoidance Assist may not properly operate in an area (e.g. open terrain), where any substance are not detected after turning ON the engine.

Limitations of Forward Collision- Avoidance Assist

Forward Collision-Avoidance Assist may not operate normally, or it may operate unexpectedly under the following circumstances:

  • The detecting sensor or the surroundings are contaminated or damaged
  • The temperature around the front view camera is high or low
  • The camera lens is contaminated due to tinted, filmed or coated windshield, damaged glass, or sticky foreign material (sticker, bug, etc.) on the glass
  • Moisture is not removed or frozen on the windshield
  • Washer fluid is continuously sprayed, or the wiper is on
  •  Driving in heavy rain or snow, or thick fog
  • The field of view of the front view camera is obstructed by sun glare
  • Street light or light from an oncoming vehicle is reflected on the wet road surface, such as a puddle on the road
  • An object is placed on the dashboard
  • Your vehicle is being towed
  • The surrounding is very bright
  • The surrounding is very dark, such as in a tunnel, etc.
  • The brightness changes suddenly, for example when entering or exiting a tunnel
  • The brightness outside is low, and the headlamps are not on or are not bright
  • Driving through steam, smoke or shadow
  • Only part of the vehicle, pedestrian or cyclist is detected
  • The vehicle in front is a bus, heavy truck, truck with a unusually shaped luggage, trailer, etc.
  • The vehicle in front has no tail lights, tail lights are located unusually, etc.
  • The brightness outside is low, and the tail lamps 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.
  • The front vehicle's ground clearance is low or high
  • A vehicle, pedestrian or cyclist suddenly cuts in front
  • The bumper around the front radar is impacted, damaged or the front radar is out of position
  • The temperature around the front radar is high or low
  • Driving through a tunnel or iron bridge
  • Driving in large areas where there are few vehicles or structures (i.e. desert, meadow, suburb, etc.)
  • Driving near areas containing metal substances, such as a construction zone, railroad, etc.
  • A material is near that reflects very well on the front radar, such as a guardrail, nearby vehicle, etc.
  • The cyclist in front is on a bicycle made of material that does not reflect on the front radar
  • The vehicle in front is detected late
  • The vehicle in front is suddenly blocked by a obstacle
  • The vehicle in front suddenly changes lane or suddenly reduces speed
  • The vehicle in front is bent out of shape
  • The front vehicle's speed is fast or slow
  •  The vehicle in front steers in the opposite direction of your vehicle to avoid a collision
  • With a vehicle in front, your vehicle changes lane at low speed
  • The vehicle in front is covered with snow
  • You are departing or returning to the lane
  • Unstable driving
  • You are on a roundabout and the vehicle in front is not detected
  • You are continuously driving in a circle
  • The vehicle in front has an unusual shape
  • The vehicle in front is driving uphill or downhill
  • The pedestrian or cyclist is not fully detected, for example, if the pedestrian is leaning over or is not fully walking upright
  • The pedestrian or cyclist is wearing clothing or equipment that makes it difficult to detect as a pedestrian or cyclist

The illustration above shows the image

The illustration above shows the image the front view camera is capable of detecting as a vehicle, pedestrian and cyclist.

  • The pedestrian or cyclist in front is moving very quickly
  • The pedestrian or cyclist in front is short or is posing a low posture
  • The pedestrian or cyclist in front has impaired mobility
  • The pedestrian or cyclist in front is moving intersected with the driving direction
  • There is a group of pedestrians, cyclists or a large crowd in front
  • The pedestrian or cyclist is wearing clothing that easily blends into the background, making it difficult to detect
  • The pedestrian or cyclist is difficult to distinguish from the similar shaped structure in the surroundings
  • You are driving by a pedestrian, cyclist, traffic sign, structure, etc. near the intersection
  • Driving in a parking lot
  • Driving through a tollgate, construction area, unpaved road, partial paved road, uneven road, speed bumps, etc.
  • Driving on an incline road, curved road, etc.
  • Driving through a roadside with trees or streetlights
  • The adverse road conditions cause excessive vehicle vibrations while driving
  • Your vehicle height is low or high due to heavy loads, abnormal tire pressure, etc.
  • Driving through a narrow road where trees or grass are overgrown
  • There is interference by electromagnetic waves, such as driving in an area with strong radio waves or electrical noise

WARNING

Driving on a curve

Forward Collision-Avoidance Assist

Forward Collision-Avoidance Assist may not detect other vehicles, pedestrians or cyclists in front of you on curved roads adversely affecting the performance of the sensors. This may result in no warning or braking assist 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

Forward Collision-Avoidance Assist may detect a vehicle, 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.

Driving on a slope

Forward Collision-Avoidance Assist

Forward Collision-Avoidance Assist may not detect other vehicles, pedestrians or cyclists in front of you while driving uphill or downhill adversely affecting the performance of the sensors.

This may result in unnecessary warning or braking assist, or no warning or braking assist when necessary.

Also, vehicle speed may rapidly decrease when a vehicle, pedestrian or cyclist ahead is suddenly detected.

Always have your eyes on the road while 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.

Changing lanes

[A] : Your vehicle,

[A] : Your vehicle,

[B] : Lane changing vehicle

When a vehicle 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 the vehicle when the vehicle 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.

[A] : Your vehicle, [B] : Lane changing vehicle,

[A] : Your vehicle, [B] : Lane changing vehicle,

[C] : Same lane vehicle

When a vehicle in front of you merges out of the lane, Forward Collision-Avoidance Assist may not immediately detect the vehicle 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.

Detecting vehicle

If the vehicle in front of you has

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.

WARNING

  • When you are towing a trailer or another vehicle, we recommend that Forward Collision-Avoidance Assist is turned off due to safety reasons.
  • Forward Collision-Avoidance Assist may operate if objects that are similar in shape or characteristics to vehicles, pedestrians and cyclists are detected.
  • Forward Collision-Avoidance Assist does not operate on bicycles, motorcycles, or smaller wheeled objects, such as luggage bags, shopping carts, or strollers.
  • Forward Collision-Avoidance Assist may not operate normally if interfered by strong electromagnetic waves.
  • Forward Collision-Avoidance Assist may not operate for 15 seconds after the vehicle is started, or the front view camera is initialized.

Information

This device complies with Part 15 of the FCC rules.

Operation is subject to the following three conditions:

  1. This device may not cause harmful interference, and
  2.  This device must accept any interference received, including interference that may cause undesired operation.
  3.  Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the device.

Information

Radio frequency radiation exposure information: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with minimum distance of 8 in.

(20 cm) between the radiator (antenna) and your body.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

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