Toyota Highlander Service Bulletins (2021)

231 manufacturer communications on file.

• July 10, 2023•Document ID: 10241394

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; BACK OVER PREVENTION

  Mfr Comm. #:

  T-TT-0726-23

  Date Added:

  August 28, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal drive conditions. Please contact TAS for diagnostic instructions to aid in resolution of the condition.

  Associated Products (6)

  2023 Toyota Highlander2023 Toyota RAV42022 Toyota Highlander2022 Toyota RAV42021 Toyota Highlander2021 Toyota RAV4
  Associated Documents

  • DownloadMC-10241394-0001.pdf↗
• June 8, 2023•Document ID: 10240057

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  TSB-0033-23

  Date Added:

  July 31, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2020 ? 2023 model year Highlander Hybrid and 2021 ? 2023 model year RAV4 Hybrid, RAV4 Prime, Sienna Hybrid, and Venza Hybrid vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: ?P24517F ? Evaporative Emission System Switching Valve Actuator Stuck Off. ?P14502A ? Fuel Tank Pressure Sensor Signal Stuck in Range.

  Associated Products (13)

  2023 Toyota Highlander2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Highlander
  Associated Documents

  • DownloadMC-10240057-0001.pdf↗
• May 18, 2023•Document ID: 10238144

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

  Mfr Comm. #:

  T-TT-0694-22

  Date Added:

  June 26, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087. Upon investigation, it is found that the engine ECU has been damaged and needs to be replaced. In several cases, it was found that the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the jumper cables are hooked up on or around the engine ECU or ECU mounting bracket

  Associated Products (24)

  2024 Toyota Camry2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Camry2023 Toyota Highlander2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2022 Toyota Sienna2022 Toyota Venza2021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2021 Toyota Sienna2021 Toyota Venza2020 Toyota Avalon+ 4 more
  Associated Documents

  • DownloadMC-10238144-0001.pdf↗
• May 18, 2023•Document ID: 10238140

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22TE09-1

  Date Added:

  June 26, 2023

  Manufacturer:

  TOYOTA

  Summary

  TI: TECHNICAL INSTRUCTIONS FOR CUSTOMER SUPPORT PROGRAM 22TE09 HV FLOOR UNDER WIRE HARNESS AND REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2020 ?2022 MODEL YEAR HIGHLANDER HYBRID AWD

  Associated Products (3)

  2022 Toyota Highlander2021 Toyota Highlander2020 Toyota Highlander
  Associated Documents

  • DownloadMC-10238140-0001.pdf↗
• May 18, 2023•Document ID: 10238139

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:WIRING

  Mfr Comm. #:

  22TE09

  Date Added:

  June 26, 2023

  Manufacturer:

  TOYOTA

  Summary

  DP: Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or, following certain warning indicators, the vehicle may not start.

  Associated Products (7)

  2022 Toyota Highlander2022 Toyota RAV42021 Toyota Highlander2021 Toyota RAV42020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4
  Associated Documents

  • DownloadMC-10238139-0001.pdf↗
• May 11, 2023•Document ID: 10238131

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  T-SB-0021-23

  Date Added:

  June 26, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2020 ? 2022 model year Highlander and RAV4 vehicles, and 2022 model year Tundra vehicles equipped with a start/stop switch may exhibit water entry to the vehicle from the HVAC drain hose being disconnected from the air conditioning radiator assembly and/or a grease/oil odor emitting from the vents. This condition may be caused by paraffin wax leaking from the evaporator.

  Associated Products (7)

  2022 Toyota Highlander2022 Toyota RAV42022 Toyota Tundra2021 Toyota Highlander2021 Toyota RAV42020 Toyota Highlander2020 Toyota RAV4
  Associated Documents

  • DownloadMC-10238131-0001.pdf↗
• April 5, 2023•Document ID: 10236191

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

  Mfr Comm. #:

  23TE01 Dealer Pa

  Date Added:

  May 15, 2023

  Manufacturer:

  TOYOTA

  Summary

  DP: Although the high-pressure fuel pump is covered by Toyota?s New Vehicle Limited Warranty for 5 years or 60,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to the presence of a fuel odor in or around the engine bay originating at the high-pressure fuel pump of the subject vehicles.

  Associated Products (33)

  2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2022 Toyota Tacoma2022 Toyota Venza2021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Tacoma2021 Toyota Venza2020 Toyota Avalon2020 Toyota Camry2020 Toyota Highlander2020 Toyota RAV42020 Toyota Sienna2020 Toyota Tacoma+ 13 more
  Associated Documents

  • DownloadMC-10236191-0001.pdf↗
• March 27, 2023•Document ID: 10234338

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

  Mfr Comm. #:

  T-TT-0699-22 Rev

  Date Added:

  April 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the following message ?Engine Maintenance Required Visit Your Dealer? on the combination meter

  Associated Products (32)

  2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Avalon2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Avalon+ 12 more
  Associated Documents

  • DownloadMC-10234338-0001.pdf↗
• March 23, 2023•Document ID: 10234337

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; BACK OVER PREVENTION

  Mfr Comm. #:

  T-TT-0726-23

  Date Added:

  April 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal drive conditions. Please contact TAS for diagnostic instructions to aid in resolution of the condition.

  Associated Products (6)

  2023 Toyota Highlander2023 Toyota RAV42022 Toyota Highlander2022 Toyota RAV42021 Toyota Highlander2021 Toyota RAV4
  Associated Documents

  • DownloadMC-10234337-0001.pdf↗
• March 20, 2023•Document ID: 10234331

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  T-TT-0723-23

  Date Added:

  April 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: Some 2021 to 2023 MY vehicles equipped Rear Motor Generator, MGR (Q610) may experience an oil leak concern. This issue is currently under investigation

  Associated Products (6)

  2023 Toyota Highlander2023 Toyota RAV42022 Toyota Highlander2022 Toyota RAV42021 Toyota Highlander2021 Toyota RAV4
  Associated Documents

  • DownloadMC-10234331-0001.pdf↗
• March 6, 2023•Document ID: 10234314

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  T-SB-0115-22 Rev

  Date Added:

  April 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2019 ? 2022 model year Avalon, 2018 ? 2023 model year Camry, 2017 ? 2022 model year Highlander, and 2017 ? 2020 model year Sienna vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle.

  Associated Products (20)

  2023 Toyota Camry2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2020 Toyota Avalon2020 Toyota Camry2020 Toyota Highlander2020 Toyota Sienna2019 Toyota Avalon2019 Toyota Camry2019 Toyota Highlander2019 Toyota Sienna2018 Toyota Camry2018 Toyota Highlander2018 Toyota Sienna2017 Toyota Highlander2017 Toyota Sienna
  Associated Documents

  • DownloadMC-10234314-0001.pdf↗
• March 3, 2023•Document ID: 10234309

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  T-TT-0690-22 Rev

  Date Added:

  April 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: On some 2021-2022MY Highlander HV, RAV4 HV, RAV4 Prime and Venza models, the connector cover for the Under Floor Wire Harness for the Rear Motor Generator may have the appearance of being damaged or missing

  Associated Products (6)

  2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza
  Associated Documents

  • DownloadMC-10234309-0001.pdf↗
• February 20, 2023•Document ID: 10235240

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  TTT070222

  Date Added:

  May 1, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: Some 2020-2022 vehicles equipped with North American Produced (NAP) A25A-FKS/FXS engines may experience an oil leak from the head/valve cover gasket. This issue is currently under investigation.

  Associated Products (14)

  2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2020 Toyota Avalon2020 Toyota Camry2020 Toyota Highlander2020 Toyota RAV4
  Associated Documents

  • DownloadMC-10235240-0001.pdf↗
• December 22, 2022•Document ID: 10230385

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  T-SB-0115-22

  Date Added:

  January 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2019 ? 2022 model year Avalon, 2018 ? 2023 model year Camry, 2017 ? 2022 model year Highlander, 2017 ? 2020 model year Sienna, and 2016 ? 2023 model year Tacoma vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle. Follow the Repair Procedure in this bulletin to address this condition

  Associated Products (28)

  2023 Toyota Camry2023 Toyota Tacoma2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2022 Toyota Tacoma2021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2021 Toyota Tacoma2020 Toyota Avalon2020 Toyota Camry2020 Toyota Highlander2020 Toyota Sienna2020 Toyota Tacoma2019 Toyota Avalon2019 Toyota Camry2019 Toyota Highlander2019 Toyota Sienna2019 Toyota Tacoma+ 8 more
  Associated Documents

  • DownloadMC-10230385-0001.pdf↗
• December 19, 2022•Document ID: 10230376

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  T-TT-0611-20 Rev

  Date Added:

  January 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TT: To assist with the early detection and early resolution of audio related concerns, it may be requested as part of the remanufactured head unit return to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by audio suppliers, FTS, and/or FPEs.

  Associated Products (44)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota Camry2022 Toyota C-HR2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Sienna2022 Toyota Tacoma2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota Camry2021 Toyota C-HR2021 Toyota Corolla2021 Toyota Highlander2021 Toyota Prius2021 Toyota RAV4+ 24 more
  Associated Documents

  • DownloadMC-10230376-0001.pdf↗
• December 17, 2022•Document ID: 10206529

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  T-TT-0672-21 Rev

  Date Added:

  January 18, 2022

  Manufacturer:

  TOYOTA

  Summary

  TT: Some 2021-2022 TMMK built vehicles with A25A-FKS/FXS engines may exhibit an oil leak from the No.2 Oil Pan. This issue is currently under investigation

  Associated Products (8)

  2022 Toyota Avalon2022 Toyota Camry2022 Toyota Highlander2022 Toyota RAV42021 Toyota Avalon2021 Toyota Camry2021 Toyota Highlander2021 Toyota RAV4
  Associated Documents

  • DownloadMC-10206529-0001.pdf↗
• December 9, 2022•Document ID: 10230364

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  T-SB-0049-21 Rev

  Date Added:

  January 17, 2023

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2020 ? 2022 Highlander and Highlander Hybrid and 2021 ? 2022 Sienna Hybrid vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0087 (Fuel Rail/System Pressure ? Too Low) and/or P107A2A (Fuel Rail Pressure Sensor (Low) Signal Stuck in Range) present. This condition may occur when the vehicle is operated at high altitude and high temperature; typically, above 3,300 feet (1,000 meters) and ambient temperature above 85°F (30°C). The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this bulletin to address this condition

  Associated Products (5)

  2022 Toyota Highlander2022 Toyota Sienna2021 Toyota Highlander2021 Toyota Sienna2020 Toyota Highlander
  Associated Documents

  • DownloadMC-10230364-0001.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 (50)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota Camry2022 Toyota C-HR2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Sienna2022 Toyota Tacoma2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota Camry2021 Toyota C-HR2021 Toyota Corolla2021 Toyota Highlander2021 Toyota Mirai+ 30 more
  Associated Documents

  • DownloadMC-10230360-0001.pdf↗
• November 23, 2022•Document ID: 10227898

  Service Bulletin/Repair Instructions
  AIR BAGS

  Mfr Comm. #:

  T-SB-0094-21 Rev

  Date Added:

  December 19, 2022

  Manufacturer:

  TOYOTA

  Summary

  TSB: Some 2005 ? 2022 model year Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this service bulletin is to provide general guidelines and procedures for odor remediation. This service bulletin provides a guide on how to prepare the interior of the vehicle prior to an odor remediation being performed, as well as contact information for an approved vendor who will arrange the remediation, and instructions on how to prepare the interior of the vehicle for reassembly once the remediation has been completed. Refer to all model and model year specific Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This service bulletin is to provide a general overview and direction for the odor remediation process.

  Associated Products (287)

  2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota Camry2022 Toyota Corolla2022 Toyota Highlander2022 Toyota Land Cruiser2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2022 Toyota Tundra2022 Toyota Venza2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota Land Cruiser2021 Toyota Prius2021 Toyota Prius C+ 267 more
  Associated Documents

  • DownloadMC-10227898-0001.pdf↗
• September 28, 2022•Document ID: 10224180

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  T-TT-0699-22 Rev

  Date Added:

  October 17, 2022

  Manufacturer:

  TOYOTA

  Summary

  TT: Some Model Year 2018-2021 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the following message ?Engine Maintenance Required Visit Your Dealer? on the combination meter.

  Associated Products (20)

  2021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota RAV42020 Toyota Avalon2020 Toyota Camry2020 Toyota Corolla2020 Toyota Highlander2020 Toyota RAV42019 Toyota Avalon2019 Toyota Camry2019 Toyota Corolla2019 Toyota Highlander2019 Toyota RAV42018 Toyota Avalon2018 Toyota Camry2018 Toyota Corolla2018 Toyota Highlander2018 Toyota RAV4
  Associated Documents

  • DownloadMC-10224180-0001.pdf↗