Activating and deactivating max defroster
Max defroster is used to quickly remove mist and ice from windows.
Max defroster deactivates auto-regulation of the climate and air recirculation, activates air conditioning and changes the fan level to 5 and the temperature to HI.
Note
Changing the fan level to 5 increases the noise level.
When max defroster is deactivated, the climate control system returns to the previous settings.
Activating and deactivating max defroster from centre console
There is a physical button in the centre console for quick access to max defroster.
With heated windscreen* the max defroster can only be activated individually from the climate view in the centre display.
![P5/P6-1746–Climate–Physical button windscreen](https://www.volvocars.com/images/support/imgc197e5a1829ae357c0a80152753123af_1_--_--_VOICEpnghigh.png?imwidth=1280)
Cars without heated windscreen:
Press the button.
Max defroster is activated/deactivated and the button lights up/goes off. The temperatures in the various climate zones are not synchronised while max defroster is activated.
Cars with heated windscreen:
Press the button repeatedly in order to switch between the three levels:
- Activated heated windscreen
- Activated heated windscreen and max defroster
- Deactivated.
Heated windscreen and max defroster are activated/deactivated and the button illuminates/extinguishes.
Note
Max defroster starts with a certain delay in order to avoid a short increase in fan level if the heated windscreen is deactivated by two quick presses of the button.
Activating and deactivating max defroster from centre display
Open the climate view in the centre display by tapping on the temperature button at the bottom centre of the centre display.
![P6-XC40BEV-2037–Climate–Button max defroster](https://www.volvocars.com/images/support/img21986ece7dece19bc0a801527a07ad40_2_--_--_VOICEpnghigh.png?imwidth=1280)
Tap on the max defroster button.
Max defroster is activated/deactivated and the button lights up/goes off. The temperatures in the various climate zones are not synchronised while max defroster is activated.