Sensor fields backwards and forwards
| Field colour reverse | Distance in metres (feet) |
|---|---|
| Yellow | 0.6-1.5 (2.0-4.9) |
| Orange | 0.3–0.6 (1.0–2.0) |
| Red | 0-0.3 (0-1.0) |
| Field colour forwards | Distance in metres (feet) |
|---|---|
| Yellow | 0.6–0.8 (2.0–2.6) |
| Orange | 0.3–0.6 (1.0–2.0) |
| Red | 0-0.3 (0-1.0) |
For red sensor fields, the pulsating acoustic signal changes over to a constant tone.
Sensor field to the sides
Warning signals depend on the intended route of the car. When the steering wheel is turned, therefore, there may also be a warning for obstacles diagonally in front of or diagonally behind the car, not just straight ahead or directly behind.
Left-hand side front sensor field
Obstacle sector in the car's intended route forwards – depending on steering wheel angle
Sector with red field colour and intensively pulsing tone 
Right-hand side rear sensor field
Obstacle sector in the car's intended route in reverse – depending on steering wheel angle.
| Colour of side fields | Distance in metres (feet) |
|---|---|
| Yellow | 0,25–0,9 (0,8–3,0) |
| Red | 0–0,25 (0–0,8) |
In the case of red sensor fields, the acoustic signal changes from pulsing to intensively pulsing.