Brake booster and ABS accumulator failure
SERVICE BRAKES
167 NHTSA complaints · 2022-11 → 2026-07
“My Prius had brake warning lights come on around December 2025. Turns out the brake accumulator had an internal leak. After doing some research, I discovered this was a known brake booster issue that Toyota has not issued a recall on”
“The contact owns a 2013 Toyota Prius V. The contact stated that while pulling out of a parking space at approximately 15 MPH and depressing the brake pedal, the brake pedal felt spongy, but the vehicle responded as intended”
“Spontaneous failure of brake actuator system”