Squealing is just one sign that your brakes have overheated, and the brakes are squealing because the pads and rotors have glazed, i.e., smoothed out. Another sign of overheating brakes is a burning smell, whether of chemicals or burnt carpet.

Can heat cause brakes to squeak?

Temperature Change That, or an overnight a light layer of rust can form on a rotor, making brakes squeal. Once brake pads and rotors heat up, the noise stops.

How do I get my brakes to stop squeaking?

“Cleaning your rotors or wheel rims regularly with a specific (oil-free) disc brake degreaser is a good way to avoid squealing brakes. Cleaning your pads too can help quieten things down – you can try some sandpaper or grinding the pads – but if the grease has soaked through the pad, you might need to replace them.