Distance Warning

Distance Warning*

Updated 11/9/2020

Distance Warning*

The distance warningDistance Alert function can assist the driver to notice that the time interval to the vehicle ahead may be too short. This requires the car to be equipped with a head-up display* to be able to display Distance Warning.

P5-V90/S90-1646-Head up display, Distance Warning

Distance Warning symbol on the windscreen with head-up display.

In cars equipped with head-up display, a symbol is shown on the windscreen for as long as the time interval to the vehicle ahead is shorter than the preset value. However, this assumes that the Show Driver Support function is activated via the settings in the car's menu system.

Distance warning is active at speeds above 30 km/h (20 mph) and only reacts to the vehicle ahead travelling in the same direction. No distance information is provided for oncoming, slow or stationary vehicles.

P5-1546-Distance Warning, warning light on the windscreen

Warning light for distance warning is shown on the windscreen.

Even if the car is not equipped with a head-up display, a warning light appears on the windscreen and shines steadily if the time interval to the vehicle in front is shorter than a preset value.


Strong sunlight, reflections, extreme light contrasts, the use of sunglasses, or if the driver is not looking straight ahead may make the visual warning signal in the windscreen difficult to recognise.


Distance warning is deactivated during the time the adaptive cruise control* or Pilot Assist* is active.


Distance warning only reacts if the time window to the vehicle ahead is shorter than the preset value – the speed of the driver's vehicle is not affected.


  • 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.

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