Why is the reversing radar of Audi A4 not beeping?

[AndersonLynn]

If the dashboard shows an icon resembling glasses, it indicates that the brake pads are worn thin and the alarm wire is triggering an alert. In this case, new brake pads and an alarm wire need to be replaced. The interpretation of car dashboard indicator lights is as follows: 1. Red indicator lights: Red lights are generally warning lights for hazards. If these red indicators light up, immediate inspection and repair are necessary; otherwise, they can significantly impact driving safety or cause severe damage to the vehicle itself. 2. Yellow indicator lights: Yellow lights are malfunction indicators. When a yellow light on the dashboard illuminates, it informs the driver that a certain system's function has been lost. For example, if the ABS warning light comes on, it directly means that the ABS is no longer functioning, which could lead to wheel lock-up during braking. 3. Green indicator lights: Green lights are status indicators, showing the current operating state of the vehicle. For instance, the power mode indicator of an automatic transmission or the HINLO for body height adjustment does not warn the driver of a problem but rather informs them about the vehicle's current status.