Toyota Mirai Service Bulletins (2021)

121 manufacturer communications on file.

• August 17, 2023•Document ID: 10244111

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; COMMUNICATION:MANUFACTURER TELEMATICS

  Mfr Comm. #:

  TTT073723

  Date Added:

  October 16, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features. Toyota has developed and provided the following Telematics Diagnostic Guide to assist dealer technicians.

  Associated Products (62)

  2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota GR Corolla2024 Toyota Grand Highlander2024 Toyota Mirai2024 Toyota Prius2024 Toyota Supra2024 Toyota Tacoma2024 Toyota Tundra2024 Toyota Venza2023 Toyota 4Runner2023 Toyota bZ4X2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown+ 42 more
  Associated Documents

  • DownloadMC-10244111-0001.pdf↗
• July 25, 2023•Document ID: 10241405

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ENGINE AND ENGINE COOLING; SUSPENSION

  Mfr Comm. #:

  T-SB-0047-23

  Date Added:

  August 28, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2021 ? 2023 model Mirai vehicles may exhibit a creaking or clicking type noise from the rear suspension member. This condition may occur when braking or when driving over speed bumps and uneven surfaces.

  Associated Products (3)

  2023 Toyota Mirai2022 Toyota Mirai2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10241405-0001.pdf↗
• July 25, 2023•Document ID: 10241404

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

  Mfr Comm. #:

  T-SB-0107-20

  Date Added:

  August 28, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.

  Associated Products (25)

  2024 Toyota bZ4X2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota GR Corolla2024 Toyota Grand Highlander2024 Toyota Mirai2024 Toyota Prius2024 Toyota Tundra2024 Toyota Venza2023 Toyota bZ4X2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota GR Corolla2023 Toyota Mirai2023 Toyota Prius2023 Toyota Tundra2023 Toyota Venza2022 Toyota Corolla Cross2022 Toyota Mirai+ 5 more
  Associated Documents

  • DownloadMC-10241404-0001.pdf↗
• July 10, 2023•Document ID: 10241392

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  T-SB-0043-23

  Date Added:

  August 28, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2021 ? 2022 model year Mirai vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: ?P1F6C71 ? Air Sealing Valve Actuator Stuck ?P1F6E71 ? Air Pressure Regulating Valve Actuator Stuck

  Associated Products (2)

  2022 Toyota Mirai2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10241392-0001.pdf↗
• December 7, 2022•Document ID: 10230360

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

  Mfr Comm. #:

  T-SB-0106-22

  Date Added:

  January 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System, require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the expiration date of the dynamic subscription (stored in the head unit), must be checked. If the expiration date has not passed, a license key may be generated without the purchase of an activation card number (ACN). Updating the map without the use of an ACN is considered an Embedded Navigation Update (refer to pg. 10) and performing this update does not extend the subscription to dynamic map services. If the subscription period has expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an ACN. Utilizing an ACN, will initiate the Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the embedded navigation update and provide dynamic map services for a period of two years from the date that the Dynamic Navigation Update is performed. ACNs are provided in a pamphlet available through the normal parts ordering system

  Associated Products (25)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota Mirai2021 Toyota Prius+ 5 more
  Associated Documents

  • DownloadMC-10230360-0001.pdf↗
• July 19, 2022•Document ID: 10217798

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0107-20 Rev

  Date Added:

  August 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of TIS and the Calibration Update Wizard (CUW). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the Techstream ECU flash reprogramming process

  Associated Products (8)

  2023 Toyota bZ4X2022 Toyota Corolla2022 Toyota Mirai2022 Toyota Tundra2022 Toyota Venza2021 Toyota Mirai2021 Toyota Tundra2021 Toyota Venza
  Associated Documents

  • DownloadMC-10217798-0001.pdf↗
• July 14, 2022•Document ID: 10224155

  Service Bulletin/Repair Instructions
  EQUIPMENT; PARKING BRAKE

  Mfr Comm. #:

  TSB004321Rev2

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2020 model year vehicles equipped with Audio Plus (version 1021) or Premium Audio (version 1021) or earlier may exhibit one or more of the following conditions: ?Barge in function defaulted to OFF. ?Limited phone book grammar. ?Difficult Hand Free operation. ?Abnormal Electronic Owner?s Manual operation. ?Music does not automatically resume when using Android Auto?. ?Cover art is not displayed. ?Vehicle position is not sent to Destination Assist server. ?System inoperative after using the return button when using voice recognition.

  Associated Products (13)

  2022 Toyota 4Runner2022 Toyota Camry2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Sequoia2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Camry2021 Toyota Highlander2021 Toyota Mirai2021 Toyota Sequoia2021 Toyota Tundra2021 Toyota Venza
  Associated Documents

  • DownloadMC-10224155-0001.pdf↗
• July 8, 2022•Document ID: 10224141

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

  Mfr Comm. #:

  TSB011120Rev1

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: When certain vehicle ECUs are replaced, the ECU security key must be written in order for that ECU to communicate on the vehicle network. The Techstream Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU security key.

  Associated Products (8)

  2023 Toyota bZ4X2022 Toyota Corolla2022 Toyota Mirai2022 Toyota Tundra2022 Toyota Venza2021 Toyota Mirai2021 Toyota Tundra2021 Toyota Venza
  Associated Documents

  • DownloadMC-10224141-0001.pdf↗
• June 30, 2022•Document ID: 10224129

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  22TD01TI

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  TI: TECHNICAL INSTRUCTIONS LIMITED SERVICE CAMPAIGN 22TD01 SOFTWARE UPDATE FOR EV CONTROL COMPUTER CERTAIN 2021 MODEL YEAR MIRAI VEHICLES

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10224129-0001.pdf↗
• June 30, 2022•Document ID: 10224128

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Mfr Comm. #:

  22TD01RL

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  RL: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. Note: This message can be displayed for other issues unrelated to this Limited Service Campaign and should not be ignored.

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10224128-0001.pdf↗
• June 30, 2022•Document ID: 10224127

  Service Bulletin/Repair Instructions
  LANE DEPARTURE

  Mfr Comm. #:

  22TD01

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  DP: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. Note: This message can be displayed for other issues unrelated to this Limited Service Campaign and should not be ignored.

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10224127-0001.pdf↗
• June 30, 2022•Document ID: 10220204

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  22TD01TI

  Date Added:

  September 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  TI: TECHNICAL INSTRUCTIONS LIMITED SERVICE CAMPAIGN 22TD01 SOFTWARE UPDATE FOR EV CONTROL COMPUTER CERTAIN 2021 MODEL YEAR MIRAI VEHICLES

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10220204-0001.pdf↗
• June 30, 2022•Document ID: 10220203

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Mfr Comm. #:

  22TD01RL

  Date Added:

  September 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  RL: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. Note: This message can be displayed for other issues unrelated to this Limited Service Campaign and should not be ignored.

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10220203-0001.pdf↗
• June 30, 2022•Document ID: 10220202

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Mfr Comm. #:

  22TD01

  Date Added:

  September 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  DP: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. Note: This message can be displayed for other issues unrelated to this Limited Service Campaign and should not be ignored.

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10220202-0001.pdf↗
• June 14, 2022•Document ID: 10224108

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  TSB001221Rev2

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2010 ? 2022 model year Toyota vehicles may exhibit paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard?. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk. Follow the Repair Procedure in this bulletin to address this condition

  Associated Products (28)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Land Cruiser2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Tundra2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander+ 8 more
  Associated Documents

  • DownloadMC-10224108-0001.pdf↗
• June 14, 2022•Document ID: 10220183

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  TSB001221Rev2

  Date Added:

  September 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2010 ? 2022 model year Toyota vehicles may exhibit paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard?. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk. Follow the Repair Procedure in this bulletin to address this condition

  Associated Products (28)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Land Cruiser2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Tundra2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander+ 8 more
  Associated Documents

  • DownloadMC-10220183-0001.pdf↗
• May 13, 2022•Document ID: 10220154

  Service Bulletin/Repair Instructions
  COMMUNICATION:MANUFACTURER TELEMATICS

  Mfr Comm. #:

  TTT069522

  Date Added:

  September 15, 2022

  Manufacturer:

  TOYOTA

  Summary

  TT: To improve customer support of telematics connected services features, additional resources have been provided in the Service Lane - Knowledge Center.

  Associated Products (32)

  2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Corolla2023 Toyota Highlander2023 Toyota Mirai2023 Toyota Tacoma2023 Toyota Tundra2022 Toyota 4Runner2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Tundra2022 Toyota Venza2021 Toyota 4Runner+ 12 more
  Associated Documents

  • DownloadMC-10220154-0001.pdf↗
• April 15, 2022•Document ID: 10214362

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  22TC04

  Date Added:

  June 21, 2022

  Manufacturer:

  TOYOTA

  Summary

  TI: TECHNICAL INSTRUCTIONS SPECIAL SERVICE CAMPAIGN 22TC04 SOFTWARE UPDATE FOR EV CONTROL COMPUTER CERTAIN 2021 MODEL YEAR MIRAI VEHICLES

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10214362-0001.pdf↗
• March 24, 2022•Document ID: 10214347

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  TTT059920 Rev4

  Date Added:

  June 21, 2022

  Manufacturer:

  TOYOTA

  Summary

  TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns

  Associated Products (27)

  2023 Toyota bZ4X2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Tundra2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander+ 7 more
  Associated Documents

  • DownloadMC-10214347-0001.pdf↗
• March 23, 2022•Document ID: 10214344

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T623

  Date Added:

  June 21, 2022

  Manufacturer:

  TOYOTA

  Summary

  DD: SPECIAL SERVICE CAMPAIGN 22TC04 (Remedy Notice) Dealer Letter and Technical Instructions Available on TIS Certain 2021 Model Year Mirai Software Update for the EV Control Computer

  Associated Products (1)

  2021 Toyota Mirai
  Associated Documents

  • DownloadMC-10214344-0001.pdf↗