Automatic speed limiter

Automatic speed limiter

Updated 10/4/2021

Automatic speed limiter

The Automatic Speed Limiter (ASLAutomatic Speed Limiter) function helps the driver to adapt the car's maximum speed to the speed shown on the road signs.

The Speed Limiter function (SLSpeed Limiter) can be changed to Automatic Speed Limiter (ASL).

The automatic speed limiter uses speed information from the Road Sign Information* (RSIRoad Sign Information) function to automatically adapt the car's maximum speed.


Even if the driver clearly sees the speed-related road sign, the speed information from the Road Sign Information* (RSI) function to ASL may be incorrect – in such cases the driver must intervene him/herself and accelerate or brake to a suitable speed.


  • The function is supplementary driver support intended to facilitate driving and make it safer – it cannot handle all situations in all traffic, weather and road conditions.
  • The driver is advised to read all sections in the Owner's Manual that relate to this function to learn about factors such as its limitations and what the driver should be aware of before using the system.
  • Driver support functions are not a substitute for the driver's attention and judgement. The driver is always responsible for ensuring the car is driven in a safe manner, at the appropriate speed, with an appropriate distance to other vehicles, and in accordance with current traffic rules and regulations.

Symbol for automatic speed limiter

P5-1507-Automatic Speed Limiter symbol 10x10

The sign symbol (displayed alongside the stored speed, "70", in the centre of the speedometer) can be shown in three colours with the following meanings:

Colour of sign symbol


Greenish yellow

The automatic speed limiter is active


The automatic speed limiter is set in standby mode


Automatic speed limiter is in temporary standby mode - e.g. due to a road sign not being read.

Symbol for which speed limiter function is active

The symbol display in the driver display changes depending on whether it is cruise control or automatic cruise control that is active.




P5-1946-Speed Limiter symbol medium

WHITE symbol: Function active, GREY symbol: Standby mode.

P5-1507-Automatic Speed Limiter symbol 10x10

Sign symbol after "70" = Automatic Speed Limiter is activated.

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