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►Audi A3 Cabriolet ►Controls and displays ►Driver information system ◀Camera-based traffic sign recognition
- Fig. 1 Instrument cluster: Traffic sign recognition (example)
- Fig. 2 Windscreen: Camera window for traffic sign recognition
Applies to vehicles: with camera-based traffic sign recognition
Traffic signs detected by the camera appear in the instrument cluster display to keep you informed of current speed restrictions and no-overtaking zones. In cases where the system is able to detect temporary speed limits applicable at certain times of day 
, in wet weather 
or to vehicles towing a trailer 
it will also display these traffic restrictions Fig. 1.
, in wet weather or to vehicles towing a trailer it will also display these traffic restrictions Fig. 1.General notes
The traffic sign recognition system can detect standardised speed limit signs within the camera's range of vision. It makes use of the navigation data to evaluate the detected speed limits and show them on the display. Under certain conditions, the system will also display the applicable speed limits on roads without speed limit signs.
Traffic sign recognition is not available in all countries. For a current list, see the Internet (e.g. www.audi.com). The system is also subject to certain inherent restrictions and may be partially or completely unavailable in the following situations:
- If visibility is impaired by snow, rain, fog or heavy road spray.
- In dazzling light, e.g. from the sun or oncoming traffic.
- At high speeds.
- If the camera's range of vision Fig. 2 is impaired, e.g. by dirt or stickers. Notes on cleaning ►Link.
- If the traffic signs are partially or completely obscured, e.g. by trees, snow, mud or other vehicles.
- If traffic signs deviate from the standard appearance (round with red border).
- If traffic signs are damaged or bent.
- If matrix traffic signs are mounted on overhead gantries.
- If traffic signs or routes have changed (navigation data out of date).
Some types of slow moving vehicles (such as heavy goods vehicles) carry speed stickers which, if detected by the system, may affect the display.
WARNING!
Always direct your full attention to the road and surroundings, even when you are using traffic sign recognition. The actual traffic signs on your route always take precedence over the information on the display. It is always the driver's responsibility to assess the traffic situation and take appropriate care.
- Under adverse conditions, the traffic sign recognition system may misinterpret or fail to detect traffic signs. It is therefore possible that the speed limit display may occasionally be unavailable or even incorrect.
- The traffic sign recognition system does not warn you if you exceed the speed limit and does not alter the speed of your vehicle to obey the speed limit.
- The speed limit displayed in the instrument cluster (e.g. 50) may apply in mph or km/h, depending on the units applicable in a particular country.