2015 Toyota Prius Safety Report

The 2015 Toyota Prius presents a mixed safety picture. While its NHTSA crash test ratings are generally good, with an Overall 4-star rating, 4 stars for Frontal, 5 stars for Side, and 4 stars for Rollover, the vehicle has a significant and concerning pattern of brake system failures. Out of 147 total complaints, a substantial 60 complaints are related to 'SERVICE BRAKES', with specific mentions of brake actuator, booster, and master cylinder failures. These failures are often described as sudden, leading to reduced braking effectiveness, stiff pedals, and illumination of multiple warning lights (ABS, Traction Control, Brake System Warning). There are 14 reported injuries and 3 deaths associated with the total complaints, though it's not explicitly stated if these are directly linked to the brake issues. The recall history for the 2015 Prius includes one recall (18V-684) concerning the 'HYBRID PROPULSION SYSTEM: INVERTER'. This recall addresses excessive voltage in the Intelligent Power Module, which could lead to an unexpected hybrid power system shut down and increase the risk of a crash. While this recall is important, the overwhelming majority of consumer complaints point to a separate, widespread issue with the braking system that appears to be a known defect by Toyota, as evidenced by extended warranty programs that many owners report falling just outside of. The prevalence of brake system complaints, often occurring at mileages between 50,000 and 150,000 miles and around the 10-year mark, indicates a systemic problem that goes beyond normal wear and tear. Many owners report being denied coverage for these expensive repairs (often $3,000+) because their vehicles are just outside Toyota's extended warranty period. This suggests a potential safety gap where a known defect is causing significant safety concerns and financial burden for owners, despite the vehicle's otherwise solid crash test performance. The 3 reported deaths, while not directly attributed to the brake issues in the provided data, underscore the potential severity of vehicle malfunctions.

Our recommendation: Given the critical and widespread brake system failures, potential buyers should prioritize a thorough pre-purchase inspection of the braking system, especially the ABS actuator, booster, and master cylinder, and factor in potential repair costs if the vehicle is outside Toyota's extended warranty.