Environmental conditions

1. Driving in bad weather (rain, fog, snow, etc.).
2. Sudden changes between light and dark, such as an entrance or exit of a tunnel.
3. There is little contrast between detectable targets and the background.
4. Driving into low sunlight (e.g., at dawn or dusk).
5. Strong light is reflected onto a detectable target or roadway.
6. Driving in the shadows of trees, buildings, etc.
7. Reflections on the interior of the windshield.
8. Driving at night or in a dark place such as a tunnel (due to low-light conditions, detectable target may not be illuminated).
9. When nearby radio wave emitting devices such as other automotive radar sensors.

Roadway conditions

1. Driving on a snowy or wet roadway (obscured lane marking, vehicle tracks, reflected lights, road spray, high contrast).
2. Driving on curvy, winding, or undulating roads.
3. The road is hilly or the vehicle is approaching the crest of a hill.
4. Your vehicle is strongly shaken on uneven road surfaces.
5. Driving through an area where there are objects that strongly reflect radio waves onto vehicles, pedestrians, or moving bicycles.

Vehicle conditions

1. Driving at night or in a dark place (e.g., a tunnel) with the headlights off.
2. The front of the camera is obstructed by dirt, fog, rain, mud, wet snow, accessories, decals, stickers, film, etc.
3. The area around the front grille  is obstructed by dirt, rain, mud, wet snow, accessories, decals, stickers, film, etc.
4. There is residue on the windshield from the windshield wipers.
5. The inside of the windshield is fogged.
6. When lighting is weak due to dirt covering the headlight lenses, or there is poor visibility in a dark place due to the headlights being improperly adjusted.
7. An abnormal tire or wheel condition (incorrect sizes, varied sizes or construction, improperly inflated, compact spare tire, etc.).
8. The vehicle is tilted due to heavy load in the cargo area or rear seats.
9. The suspension has been modified.
10. Driving with the parking brake applied.
11. Tire chains are installed.*
12. The vehicle is towing a trailer.

Examples of limitations on the correct detection of the radar and camera due to the condition of detectable targets

1. The distance between your vehicle and the detectable target is too short.
2. The detectable target suddenly cuts in front of or jumps out in front of you.
3. The bicycle is stopped.
4. The oncoming vehicle or vehicle ahead of you is sideways or facing diagonally.
5. When the detectable target blends in with the background, preventing the system from recognizing it.
6. When several pedestrians are moving ahead of you in a group.
7. When several bicycles are moving ahead of you in a group.
8. When a pedestrian or moving bicycle crosses the road too quickly.
9. A pedestrian or moving bicycle approaches from the opposite direction.
10. The headlights of the vehicle ahead of you or oncoming vehicle are lit on one side or not lit on either side in a dark place.
11. When part of a pedestrian (heads, limbs, etc.) is hidden by a carried object.
12. When a pedestrian is bent over or squatting, when their hands are raised, or when they are running.
13. When the pedestrian is shorter than about 3.3 feet (1 meter) or taller than about 6.6 feet (2 meters) in height.
14. When the pedestrian is pushing a stroller or bicycle.

Examples of other limitations on detection or system operation

1. When the vehicle ahead of you is a small motorcycle, motorcycle with a sidecar, wheelchair, or other specially shaped vehicle.
2. When a vehicle is lower in the rear than the front such as trucks that are not carrying a cargo, or a narrow vehicle.
3. When the detectable target is not in front of the vehicle.
4. The speed difference between your vehicle and the detectable target is significantly large.
5. The speed difference between your vehicle and the detectable target is too small and the distance between your vehicle and them is too short.
6. When a vehicle (including motorcycles) or moving bicycle in front of you slows suddenly.
7. When the driver operates the brake pedal and steering wheel to avoid a collision.
8. When you approach the detectable target while accelerating rapidly or operating the steering wheel (except when turning left at an intersection, etc.)^*1
9. When the moving bicycle is a child-sized bicycle, folding bicycle, three-wheeler or other bicycle with small tires, or a long bicycle like a tandem bicycle.
10. When the front of the camera cannot correctly identify the shape of the detectable target.
11. When the minimum ground clearance of a vehicle that is ahead of you is extremely high.

*1: When there is a possibility of a frontal collision with the oncoming vehicle while turning left, the CMBS™ is activated. However, it may not be activated if you suddenly turn the steering wheel.

With little chance of a collision

Even if there is little chance of a collision, the CMBS™ may activate in the following situations, such as when the system determines that there is a possibility of collision with a detectable target.

1. When your vehicle approaches a vehicle ahead that is turning left or right.
2. Your vehicle approaches another vehicle ahead of you and you change lanes to pass.
3. When there are detectable targets or any structures around the curved road.
4. When driving through curves, your vehicle comes to a point where the oncoming vehicle is left in front of you.
5. When your vehicle approaches a detectable target.
6. When detectable targets are passing in front of you.
7. When you drive under a low structure or through a narrow gate at high speed.
8. When approaching stationary vehicles or walls, such as when parking.
9. Roadway objects or structures such as guard rails, poles, trees, parked vehicles, buildings, walls, etc., or road markings and road lines are misinterpreted as detectable targets.