I took my 2016 base model in for 110,000 mile service and was told I need new pads and rotors all around. The measurements were: Front: Pads 5mm LF 0.889 RF 0.890 Minimum 0.885 Rear Pads 5mm LR 0.349 RR 0.347 Minimum 0.345 They noted that the front and rear discs were pitted. Interestingly they would not give me a copy of the measurement report but would write the measurements down. The repair quote was Front pads and rotors: $395 parts $230 labor Rear pads and rotors: $395 parts $230 labor Brake fluid flush (never been changed) $37 parts $108 labor Clean and lube front brake caliper slides $95 labor Clean and lube rear brake caliper slides $95 labor Total: $1585 ===== Some quick Googling on my part indicates that the min pad thickness is 1mm out of 10 original so I nominally have 44% left. The min front disc thickness is 22mm (0.866in) out of 25mm (0.984in) original so I have 20% left. Similarly the rear pad minimum is 1mm out of original 9.5mm so I have 47% left. The rear disc minimum is 7.5mm (0.295in) out of an original 9mm (0.354in) so I have 88% left. I got these specs from this document https://attachments.priuschat.com/attachment-files/2021/10/213857_2010_Toyota_Prius_Repair_Manual_-_maintenance_-_brakes.pdf but these look like they're for a 2010 model. If we have similar info for a Gen IV can someone point me to it? Because it appears as if I don't actually need a brake job. Also, do those costs look reasonable?
I would take it to another shop for a second opinion. You may or may not need brakes; depends on how hard your on them. There's people here that get more than 150K miles out their original pads - but that depends on the type and terrain they're driving over. ie. someone who does a lot of highway driving is going to get a lot more miles vs short hop large elevation changes. Hope this helps... FWIW; that's a reasonable price for all four, but I live in a high C.O.L. state. Make sure they 'flush' the entire system, NOT just replace the brake fluid in the reservoir. I know some shops has the audacity to call that a flush.