2015 Toyota Prius Service Brakes Problems

NHTSA component category: SERVICE BRAKES · data through 07/14/2026

84Service Brakes complaints

52.8%Of all 159 complaints

#1Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How service brakes ranks on this vehicle

SERVICE BRAKES84 · 52.8%

ELECTRICAL SYSTEM25 · 15.7%

Unspecified / other15 · 9.4%

POWER TRAIN13 · 8.2%

VEHICLE SPEED CONTROL7 · 4.4%

Share of the 159 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 Toyota Prius overview page.

What owners report

“This vehicle has 95k miles, now the vehicle has a brake problem which can cause deadly problems. The parts that have gone bad on this…”NHTSA complaint 11705297 — filed 12/16/2025

“The vehicle has 95k miles on it and both brake actuator assembly and booster pump have gone bad. This is a defective issue, I called…”NHTSA complaint 11705276 — filed 12/16/2025

“The brake accumulator went out thanksgiving day on my way home nearly causing an accident. I also missed dinner due to the issue creating a…”NHTSA complaint 11701992 — filed 11/29/2025

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Service Brakes complaints by year filed

Frequently asked questions

Does the 2015 Toyota Prius have service brakes problems?

Service Brakes is the most-reported problem area on the 2015 Toyota Prius: 84 of 159 complaints on file (52.8%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2015 Toyota Prius have in total?

159 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 27 involved a crash, 1 involved a fire, 16 reported injuries, and 3 reported deaths.

What does NHTSA's service brakes category include?

NHTSA assigns each complaint to standard component categories; this page reports the SERVICE BRAKES category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.