Principle of Operation
WARNING   WARNING:  You are responsible for controlling your vehicle at all times. The system is designed to be an aid and does not relieve you of your responsibility to drive with due care and attention. Failure to follow this instruction could result in the loss of control of your vehicle, personal injury or death.
WARNING   WARNING:  In cold and severe weather conditions the system may not function. Rain, snow and spray can all limit sensor performance.
WARNING   WARNING:  The system may not operate properly if the sensor is blocked. Keep the windshield free from obstruction.

The system is designed to detect speed limit signs to inform you of the current speed limit. Detected speed signs appear in the instrument cluster display.
Note:   Do not carry out windshield repairs in the immediate area surrounding the sensor.
Note:   Speed sign data provided by the navigation system contains information integrated to the data carrier release.
Note:   The system may not detect or correctly read all speed signs.
Note:   If your vehicle has a suspension kit not approved by us, the system may not correctly function.
Note:   Always replace headlamp bulbs with those specifically designed for your vehicle. Other bulbs could reduce system performance.
The system turns on when you switch the ignition on, and you cannot switch the system off.
Using Speed Sign Recognition
Setting the System Speed Warning
You can set the system speed warning to alert you when the vehicle speed exceeds the speed limit recognized by the system by a certain speed tolerance.
Note:   The system remembers the last setting when you start your vehicle.
System Display
Speed Limit Sign
When the system detects a speed limit sign, the speed limit appears in the instrument cluster display.
Note:   If your vehicle has a navigation system, stored speed sign data could influence the indicated speed limit value.
To switch the system off or to adjust the settings, use the touchscreen:
  1. Press Settings on the touchscreen.
  1. Press Driver Assistance.
  1. Press Speed Sign Recognition.
  1. Press Speed Warning.
  1. Press Tolerance.
  1. Use + and - to set the tolerance.
Information Messages

Message   Details  
Traffic Sign Reduced Performance See Manual
The traffic sign data provided by the navigation system is unavailable due to a weak signal, or no signal. Wait for a short period of time for the signal to improve. If the message continues to appear, have your vehicle checked as soon as possible.  

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