- vehicles in the car's blind spot
- rapidly approaching vehicles in the left and right-hand lanes closest to the car.
- crossing traffic when the car is reversed.
Warning
BLIS is a supplementary aid and does not work in all situations.
BLIS is no substitute for a safe driving style and the use of rearview and door mirrors.
BLIS can never replace the driver's responsibility and attention - it is always the driver's responsibility to change lanes in a safe manner.
Overview
![P4-1220-BLIS Mirror](https://www.volvocars.com/images/support/imgdb69ddf80bd49604c0a801e7001dc068_1_--_--_VOICEpnghigh.png?imwidth=1280)
Indicator lamp
BLIS symbol
Note
Maintenance
The sensors for the BLIS functions are located inside the rear wing/bumper on each corner of the car.
![P3-1420-s60 CrossTrafficAlert sensor](https://www.volvocars.com/images/support/imga6bb27717e6e5444c0a8015203b4be73_1_--_--_VOICEpnghigh.png?imwidth=1280)
- To ensure optimal functionality the areas in front of the sensors must be kept clean.