Limitations of BLIS

The BLIS1 function may have limitations in certain situations.
Px-2122-V-Keep sensor area clean rear
Keep the surface indicated clean – on both the left and right-hand sides of the car2.
Examples of limitations:
  • Dirt, ice and snow covering the sensors may reduce the functions and deactivate alerts.
  • The BLIS function is automatically deactivated if a trailer, bicycle rack or similar is connected to the car's electrical system.
  • For good performance of BLIS, there should be no bicycle rack, luggage carrier or similar mounted on the car's towbar.


  • BLIS does not work on sharp bends.
  • BLIS does not work when the car is reversing.


This function uses the car's radar units, which have certain general limitations.
  1. 1 Blind Spot Information
  2. 2 NOTE: The illustration is schematic - details may vary depending on car model.