The BLIS1 function is designed to help provide assistance in heavy traffic with several lanes moving in the same direction by helping the driver to detect the presence of vehicles in the "blind spot" area behind and to the side of the vehicle.

Volvo XC90. BLIS

Location of BLIS indicator light

BLIS is a driver support system designed to alert the driver of:

  • vehicles in your "blind spot"
  • vehicles approaching rapidly in adjacent lanes.

Volvo XC90. BLIS

BLIS overview

Volvo XC90. BLIS Blind spot zone

Volvo XC90. BLIS Rapidly approaching vehicle zone

The system is designed to react to:

  • vehicles passing your vehicle
  • vehicles that are rapidly approaching your vehicle from behind.

When BLIS detects a vehicle in zone 1 or a rapidly approaching vehicle in zone 2, an indicator light will illuminate in the relevant rearview mirror and glow steadily. If the driver then uses the turn signal on the side in which the warning has been given, the indicator light will become brighter and begin flashing.

BLIS is active when your vehicle is traveling at a speed over 10 km/h (6 mph).

If a passing vehicle's speed is more than 15 km/h (9 mph) faster than your vehicle, BLIS will not react.


The light illuminates on the side of the vehicle where the system has detected the vehicle. If the vehicle is passed on both sides simultaneously, both lights come on.


  • The function is supplementary driver support intended to facilitate driving and help 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 about this function to learn of its limitations, which the driver must be aware of before using the function.
  • Driver support functions are not a substitute for the driver's attention and judgment. The driver is always responsible for ensuring the vehicle 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.

1 Blind Spot Information

Rear Collision Warning limitations
(Option/accessory.) (Warning of collision from the rear.) In some situations, it may be difficult for Rear Collision Warning (RCW) to warn the driver of a collision risk. This may be the case if: the vehicle ...

Activating or deactivating BLIS
The BLIS1 function can be activated or deactivated. Activate or deactivate the function using this button in the center display's Function view. GREEN button indicator light – the function is activated. ...

See also:

Components and Components Location
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Front Impact Sensor (FIS). Repair procedures
Removal • Removal of the airbag must be performed according to the precautions/ procedures described previously. • Before disconnecting the front impact sensor connector, disconnect the front airbag ...

Mode selection
The mode selection button controls the direction of the air flow through the ventilation system. The air flow outlet port is converted as follows: Refer to the illustration in the “Manual climate control ...