- Dirt, ice and snow on the sensors may reduce functionality and prevent the system from providing warnings.
- Do not attach any objects, tape, decals, etc., on the surface of the sensors.
- BLIS is deactivated if a trailer is attached to the vehicle's electrical system.
Maintenance
The BLIS/CTA1 sensors are located on the inside of the rear fenders/bumper.
For the system to function optimally, the area over and around the sensors must be kept clean.
If one or both of the sensors are blocked and "Rear sensors blocked, cleaning needed" is displayed in the instrument panel, clean the area over and around the sensors as soon as possible.
A text message can be erased by briefly pressing the O button on the right-side steering wheel keypad.
Important
Repairs to the BLIS/CTA systems and/or repainting the rear bumper should only be done by a trained and qualified Volvo service technician.