Toyota Prius Owners Manual
Brake pad wear limit indicators
The brake pad wear limit indicators onyour disc brakes give a warning noisewhen the brake pads are worn to wherereplacement is required.
If you hear a squealing or scraping noisewhile driving, have the brake padschecked and replaced by your Toyotadealer as soon as possible. Expensive rotordamage can result if the pads are notreplaced when necessary.