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Toyota Prius Recall 19V544: Brake Booster Pump May Fail, Losing Braking Assist

NHTSA campaign 19V544, reported July 24, 2019, 6,925 vehicles potentially affected.

What this recall means for you

The brake booster pump in certain vehicles may fail. If it does, the electronic stability control system can be deactivated and braking assist can be lost, so the vehicle no longer meets the federal electronic stability control standard. Either condition increases the risk of a crash.

Toyota will notify affected owners. Authorized dealers will inspect the brake booster pump and replace it if necessary, at no cost to you. The recall began September 20, 2019. Toyota owners can call Toyota customer service at 1-888-270-9371 (Toyota recall numbers K1L/K0L), and Lexus owners can call Lexus customer service at 1-800-255-3987 (Lexus recall numbers K2F/KLF).

To check whether your vehicle has an open recall, enter your VIN on the NHTSA recall lookup or ask any authorized dealer to check it.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 19V544Toyota Motor Engineering & Manufacturing
Component
ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES
Problem
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2019 Lexus LS500, LC500, ES300h, UX250h, LS500h, Toyota Prius, RAV4 HV, 2019-2020 Toyota Prius Prime, and 2020 Corolla HV vehicles. The brake booster pump may fail causing a deactivation of the Vehicle Stability Control system and a loss of braking assist. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control Systems."
Risk
Deactivation of the vehicle stability control system or a loss of braking assist increases the risk of a crash.
Remedy
Toyota will notify owners, and dealers will inspect and, if necessary, replace the brake booster pump, free of charge. The recall began September 20, 2019. Toyota owners may contact Toyota customer service at 1-888-270-9371 and Lexus owners may contact Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are K1L/K0L. Lexus' numbers for this recall are K2F/KLF.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Lexus ES Hybrid2019
Lexus LC5002019
Lexus LS Hybrid2019
Lexus LS5002019
Lexus UX Hybrid2019
Toyota Corolla Hybrid2020
Toyota Prius2019
Toyota Prius Prime20192020
Toyota RAV4 Hybrid2019