Water on brake discs and brake pads affects braking

Driving in rain and slush or passing through an automatic car wash can cause water to collect on the brake discs and pads. This will cause a delay in braking effect when the pedal is depressed. To avoid such a delay when the brakes are needed, depress the pedal occasionally when driving through rain, slush, etc.
This will remove the water from the brakes.
Check that brake application feels normal. This should also be done after washing or starting in very damp or cold weather.
See also:
Severe strain on the brake system
The brakes will be subject to severe strain when driving in mountains or hilly
areas, or when towing a trailer. Vehicle speed is usually slower, which means that
the cooling of the brakes is less ...
Bulb specifications
NOTE
Please consult a Volvo retailer’s Parts department for the most up-to-date specifications. ...
Hazard warning flashers
Hazard warning flashers
The four-way flasher should be used to indicate
that the vehicle has become a traffic hazard.
To activate the flashers, press the triangular
button in the center dash. ...
