Collision risk warning from driver support
The driver support systems Adaptive Cruise Control* and Pilot Assist* can help alert the driver if the distance to the vehicle ahead suddenly decreases to an unsafe distance.
![P5-1617-v54x - City Safety, audio-visual warning and radar sensor](https://www.volvocars.com/images/support/img87340fc846dbcc48c0a80152047c1a12_1_--_--_VOICEpnghigh.png?imwidth=1280)
Acoustic collision warning signal
Collision warning symbol
Camera/radar sensor distance monitoring
Adaptive Cruise Control and Pilot Assist use approx. 40% of the braking capacity. If a situation requires more braking force than driver support can provide, and if the driver does not apply the brakes, a warning light and audible warning signal will be activated to alert the driver that immediate action is required.
Warning
The driver support system only issues a warning for vehicles detected by its radar unit – thus, a warning may come after a delay or not at all. Never wait for a warning. Apply the brakes when necessary.
![P5-1507-Head Up Display, collision warning](https://www.volvocars.com/images/support/img7ce5d66bdd8e7f80c0a801526c4fcabc_1_--_--_VOICEpnghigh.png?imwidth=1280)
In vehicles equipped with a head-up display*, a flashing warning symbol will be displayed on the windshield.
Note
Visual warnings on the windshield may be difficult to notice in cases of strong sunlight, reflections, extreme light contrasts, or if the driver is wearing sunglasses or is not looking straight ahead.