Last Modified: 06-05-2026 6.11:8.1.0 Doc ID: RM100000001GIKU
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 -           ]
Title: PARKING BRAKE: PARKING BRAKE SYSTEM (w/ Electric Parking Brake): PRECAUTION; 2020 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [01/2019 -        ]

PRECAUTION

NOTICE:

  • If the battery is connected, the parking brake will operate when the electric parking brake switch assembly is pulled to the lock side even if the ignition switch (for Gasoline Model) or power switch (for HV Model) is off. Do not operate the electric parking brake switch assembly with the battery connected unless specified in the repair manual.
  • To prevent the electric parking brake system from operating, make sure that the shift-linked function is disabled. (for CVT)
  • To prevent the electric parking brake system from operating when the ignition switch is turned off, make sure that the AUTO function (IG-OFF linked function) is disabled. (for Manual Transaxle)
  • After the ignition switch (for Gasoline Model) or power switch (for HV Model) is turned off, the parking brake ECU assembly (brake actuator assembly) and parking brake actuator assembly will continue operating for 20 seconds. If a connector is disconnected during this period, a DTC may be stored.
  • If any part is removed and installed, check for DTCs to make sure that the normal system code is output after all parts are installed.

    for HV Model: Click here 2020 - 2022 MY Corolla HV [01/2019 - 09/2022]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for HV Model): DTC CHECK / CLEAR 2023 - 2026 MY Corolla HV [09/2022 -        ]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for HV Model): DTC CHECK / CLEAR

    for Gasoline Model: Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR 2023 MY GR Corolla Corolla Corolla Hatchback [09/2022 - 11/2022]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR 2023 - 2026 MY GR Corolla Corolla Corolla Hatchback [11/2022 -        ]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

  • Replacing a part with a part which does not meet the same specifications may affect the performance of the brake system or lead to a hazardous situation. When replacing a part, always use a part with the same part number or equivalent.
  • When servicing the brake system, keep the parts and areas around the parts clean.
  • If the vehicle is equipped with a mobile communication system, make sure to read the related precautions in Introduction.

    Click here 2019 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [06/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

  • When tilting the vehicle to perform work after parking the vehicle on a level surface, the braking force may not be sufficient. Make sure to pull the electric parking brake switch (electric parking brake switch assembly) to the lock side 2 times (2 lock operations).
    • The electric parking brake system determines the amount of force used to operate the parking brake according to the tilt angle detected by the deceleration sensor (airbag sensor assembly).
    • When the parking brake indicator (red) is illuminated after the electric parking brake switch (electric parking brake switch assembly) has been pulled to the lock side, the maximum amount of braking force is applied if the electric parking brake switch (electric parking brake switch assembly) is pulled to the lock side one more time.