Hyundai Tucson: Forward Collision-Avoidance Assist Malfunction and Limitations / Limitations of Forward Collision- Avoidance Assist

Forward Collision-Avoidance Assist may not operate normally or may operate unexpectedly if:

• The front view camera or front radar is blocked, covered, or damaged by snow, water, or dirt.
• The temperature near the front view camera is very hot or cold.
• The camera lens is covered or blocked by windshield tint, the windshield is damaged, or a sticky material (sticker, bug, etc.) is on the glass.
• Moisture is not removed or is frozen on the windshield.
• Washer fluid is sprayed continuously, or the wiper is on.
• Driving in heavy rain or snow, or thick fog.
• The front view camera’s field of view is obstructed by glare from the sun.
• Sunlight, streetlight, 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 or very dark (nighttime, tunnel, etc.).
• The brightness changes suddenly, for example when entering or exiting a tunnel.
• The brightness outside is low, and the headlights of the front vehicle are turned off or are not bright.
• A front vehicle, pedestrian, or cyclist is partially visible.
• The vehicle in front is a bus, heavy truck, truck with an unusual shape, trailer, etc.
• The vehicle in front has no tail lights or tail lights are located in an unusual location.
• In low light conditions, the tail lights of the front vehicle are turned off or not bright.
• The rear of the front vehicle is small or the vehicle does not look normal, such as when your vehicle is tilted, overturned, or the side of your vehicle is visible.
• The front vehicle’s ground clearance is too low or high.
• A vehicle, pedestrian, or cyclist suddenly cuts in front.
• The bumper is damaged, or the front radar is out of position due to an impact on the bumper near the front radar.
• The temperature near the front radar is very hot or cold.
• A material is near that reflects very well on the front radar, such as guardrail, nearby vehicle, etc.
• The bicycle in front is made of a material that does not reflect on the front radar well.
• The vehicle in front is detected late.
• The vehicle in front is suddenly blocked by an obstacle.
• The vehicle in front suddenly changes lanes or reduces the speed.
• Your vehicle changes lanes at a low speed with a vehicle in front.
• The vehicle in front is covered with snow.
• You are departing or returning to the lane.
• You are on a curve or 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.
• Only part of a vehicle, pedestrian, or cyclist is detected. For example, if the pedestrian is leaning over or is not walking upright.
• The pedestrian or cyclist is wearing clothing or equipment that makes it difficult to detect.

The illustration above shows the image the front view camera and front radar are 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.
• The pedestrian or cyclist in front has impaired mobility.
• The path of the pedestrian or the cyclist in front is moving at an angle to the path of your vehicle.
• There is a group of pedestrians or cyclists in front of your vehicle.
• The pedestrian or cyclist is wearing clothing that easily blends into the background, making them 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, and other structure near an intersection.
• You are driving through steam, smoke, or shadow.
• You are driving through a tunnel or an iron bridge.
• You are driving in large, open areas where there are few vehicles or structures (e.g. desert, meadow, empty suburb).
• You are driving in a parking lot.
• You are driving through a tollbooth, construction area, unpaved road, partial paved road, uneven road, speed bumps, etc.
• You are driving through roads with railroad tracks or other embedded metal objects.
• You are driving on an inclined road or curved road.
• You are driving through a roadside with trees or streetlights.
• You are driving on a narrow road where trees or grass are overgrown.
• You are driving in an area with strong radio waves or electrical noise interference.
• Your vehicle moves unstably or vibrates excessively.
• Your vehicle height is low or high due to heavy loads, abnormal tire pressure, etc.

WARNING

• Driving on curves

Forward Collision-Avoidance Assist may not detect other vehicles, pedestrians, or cyclists in front of you when driving on a curve and may not activate a warning or brake your vehicle when needed.

When driving on a curve, always maintain a safe distance from others on the road. Reduce your vehicle speed or steer your vehicle as needed.

If a vehicle, pedestrian, or cyclist is detected in the next lane or outside the lane when driving on a curve, Forward Collision-Avoidance Assist may warn you and may brake your vehicle even when not needed.

Always check road conditions, and if necessary, take appropriate actions to drive safely.

Driving on hills

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

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

Also, vehicle speed may rapidly decrease when a vehicle, pedestrian or cyclist ahead is suddenly detected. Always maintain a safe distance from the others on the road. Adjust your vehicle speed or steer your vehicle depending on the road conditions.

Changing lanes

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 within the sensor's detection range. Forward Collision-Avoidance Assist may not immediately detect the vehicle when the vehicle changes lanes suddenly.

Always maintain a safe distance from the vehicles ahead. Adjust your vehicle speed or steer your vehicle depending on the road conditions.

A: Your vehicle,
B: Lane departing vehicle,
C: Different vehicle in your lane

When a vehicle in front of you departs the lane, Forward Collision-Avoidance Assist may not immediately detect another vehicle in your lane of travel.

Always maintain a safe distance from the vehicles ahead. Adjust your vehicle speed or steer your vehicle depending on the road conditions.

Detecting a vehicle

Forward Collision-Avoidance Assist may not be able to detect all potential hazards, like if the vehicle in front of you has cargo that extends rearward past the end of the vehicle or if the vehicle in front of you has higher ground clearance. Always maintain a safe distance from the vehicles ahead. Adjust your vehicle speed or steer your vehicle depending on the road conditions.

WARNING

• When you are towing a trailer or another vehicle, turn off Forward Collision-Avoidance Assist.
• 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 may not detect bicycles, motorcycles, or smaller wheeled objects such as luggage bags, shopping carts, or strollers.
• Forward Collision-Avoidance Assist may not operate normally if there is interference from strong electromagnetic waves.
• Forward Collision-Avoidance Assist may not operate for 15 seconds right after your vehicle is started or when the front view camera is initialized.