- For optimal performance, it is important to keep the areas in front of the sensors clean.
- Do not attach any objects, tape or decals to the surface of the sensors.
![P5-1507-CrossTrafficAlert Sensor](https://www.volvocars.com/images/support/img03158c3ac8a9269fc0a80152755a5f64_1_--_--_VOICEpnghigh.png?imwidth=1280)
The CTA sensors are located on the inside of each of the rear fenders/bumpers and are also used by the BLIS2 and Rear Collision Warning functions.
Important
Repair of BLIS and CTA components or repainting of the bumper may only be performed by a workshop – an authorized Volvo workshop is recommended.