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The BLIS1 function is intended to help the driver detect vehicles diagonally behind and to the side of the car so as to provide assistance in heavy traffic on roads with several lanes in the same direction.
PS2-2007-Blind Spot Information light position
Location of BLIS lamp
BLIS is a driver aid intended to give a warning of:
  • vehicles in the car's blind spot
  • quickly approaching vehicles in the left and right lanes closest to the car.
PS2-2007-Blind Spot Information principle
Principle of BLIS
  1. PS-Icon circle 1Zone in blind spot
  2. PS-Icon circle 2Zone for quickly approaching vehicle

The BLIS function is active at speeds above 10 km/h (6 mph).

The system is designed to react when:
  • your car is overtaken by other vehicles
  • another vehicle is quickly approaching your car.

When BLIS detects a vehicle in Zone 1 or a quickly approaching vehicle in Zone 2, the indicator lamp on the right or left-hand door mirror illuminates with a constant glow. If the driver activates the direction indicator on the same side as the warning, the indicator lamp will change over from a constant glow to flashing with a more intense light.

BLIS reacts to passing vehicles driving up to 100 km/h (62 mph) faster than your vehicle.


The lamp illuminates on the side of the car where the system has detected the vehicle. If the car is overtaken on both sides at the same time then both lamps illuminate.


  • 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 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.


This function uses the car's camera and/or radar units, which have certain general limitations.
  1. 1 Blind Spot Information