Toyota will be contacting the owners of certain 2019-2010 Toyota and Lexus vehicles regarding a problem affecting the braking and stability control systems. The vehicles involved include:

  • 2019 Lexus ES300H
  • 2019 Lexus LC500
  • 2019 Lexus LS500
  • 2019 Lexus LS500 H
  • 2019 Lexus U250 Hybrid
  • 2020 Toyota Corolla Hybrid
  • 2019 Toyota Prius
  • 2019-2020 Toyota Prius Prime
  • 2019 Toyota Rav4 Hybrid

The affected vehicles have a brake booster pump with an accumulator and a pump motor which contains a plastic brush holder to hold the motor brushes. It is possible that the plastic brush holder may have been manufactured improperly, causing one of the brushes to become stuck in the brush holder. If this happens, the brush would be unable to maintain an electrical connection inside the motor and may cause the pump motor to stop operating.

If the pump motor stops operating, multiple warning lights and messages will illuminate, and/or audible chimes will sound. Depending on brake fluid pressure in the accumulator and brake pedal stroke amount, braking assist could be lost completely and the Vehicle Stability Control system will become deactivated. A sudden and complete loss of braking assist while driving could increase the vehicle stopping distance and may increase the risk of a crash. Further, deactivating the Vehicle Stability Control system may cause the subject vehicles to not meet the requirements of FMVSS No. 126, paragraph S5.1.2.

Owners receiving notices will be asked to return to their dealers to have the brake booster pump inspected and replaced as necessary. Toyota’s numbers for this recall are K1L/K0L. Lexus’ numbers for this recall are K2F/KLF. The NHTSA Campaign Number is 19V544000.

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