2023 Toyota 4RUNNER service bulletins & manufacturer communications

95 manufacturer communications are on file with NHTSA for the 2023 Toyota 4RUNNER. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• Customers state Parking Brake efficiency concerns. The conditions can include the following: • The Parking Brake Pedal feels loose or requires full depression for proper engagement…
  T-TT-0788-25 Rev1 · Technical service bulletin · Service Brakes · issued Jan 30, 2026
• OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
  T-SB-0106-22 Rev2 · Technical service bulletin · Electrical System · issued Jan 30, 2026
• Some 2018 – 2024 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, poi…
  T-SB-0001-26 · Technical service bulletin · Electrical System · issued Jan 28, 2026
• Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate t…
  T-SB-0055-24 Rev2 · Technical service bulletin · Unknown OR Other · issued Jan 7, 2026
• Customers state Parking Brake efficiency concerns. The conditions can include the following: • The PKB Pedal feels loose or requires full depression for proper engagement. • Ineffe…
  T-TT-0788-25 · Technical service bulletin · Service Brakes · issued Aug 15, 2025
• The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bul…
  T-SB-0058-23 Rev1 · Service campaign · Electrical System · issued Jun 13, 2025
• To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on h…
  T-TT-0780-25 · Technical service bulletin · Electrical System · issued Apr 2, 2025
• To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on h…
  T-TT-0780-25 · Technical service bulletin · Electrical System · issued Apr 2, 2025
• Some 2018 – 2024 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, poi…
  T-SB-0106-22 Rev2 · Technical service bulletin · Electrical System · issued Feb 11, 2025
• Some 2018 – 2024 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, poi…
  T-SB-0106-22 Rev2 · Technical service bulletin · Electrical System · issued Feb 11, 2025
• The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys wi…
  T-SB-0013-24 Rev1 · Technical service bulletin · Electrical System · issued Feb 10, 2025
• The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys wi…
  T-SB-0013-24 Rev1 · Technical service bulletin · Electrical System · issued Feb 10, 2025
• Some 2019 – 2024 model year 4Runner vehicles may exhibit a cracking noise from the driver and/or passenger front seat cushion track. This condition may occur when the front seat cu…
  T-SB-0002-25 · Technical service bulletin · Structure · issued Jan 7, 2025
• The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.…
  T-SB-0039-24 Rev2 · Technical service bulletin · Structure · issued Dec 6, 2024
• To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is…
  T-SB-0038-24 Rev2 · Technical service bulletin · Structure · issued Dec 6, 2024
• Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an expos…
  T-SB-0035-24 Rev2 · Technical service bulletin · Structure · issued Dec 6, 2024
• Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fal…
  T-SB-0061-23 Rev2 · Technical service bulletin · Structure · issued Dec 5, 2024
• Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, weldin…
  T-SB-0062-23 Rev2 · Technical service bulletin · Structure · issued Dec 3, 2024
• The table below describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase la…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Oct 24, 2024
• SECOND KEY DELIVERY PROGRAM 23TJ01 Multiple Models and Model Years Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Oct 24, 2024
• The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting c…
  23TJ01 · Service campaign · Unknown OR Other · issued Oct 24, 2024
• The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affecte…
  23TJ01 · Service campaign · Unknown OR Other · issued Oct 24, 2024
• The table below describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase la…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Sep 25, 2024
• SECOND KEY DELIVERY PROGRAM Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Sep 25, 2024
• The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affecte…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Sep 25, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Sep 17, 2024
• The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affecte…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Sep 17, 2024
• Some customers have expressed concern that the wireless functions of their Key Fob stop working. Key Fob LEDs will not turn ON, but engine starts with key held up against start but…
  T-TT-0751-24 Rev1 · Technical service bulletin · Structure · issued Sep 3, 2024
• Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate t…
  T-SB-0055-24 Rev1 · Technical service bulletin · Structure · issued Jul 29, 2024
• Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate t…
  T-SB-0055-24 Rev1 · Technical service bulletin · Structure · issued Jul 29, 2024
• The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.…
  T-SB-0039-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is…
  T-SB-0038-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an expos…
  T-SB-0035-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.…
  T-SB-0039-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is…
  T-SB-0038-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an expos…
  T-SB-0035-24 Rev1 · Technical service bulletin · Structure · issued Jul 12, 2024
• Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate t…
  T-SB-0055-24 · Technical service bulletin · Structure · issued Jun 21, 2024
• Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate t…
  T-SB-0055-24 · Technical service bulletin · Structure · issued Jun 21, 2024
• This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
  T-SB-0103-20 Rev1 · Technical service bulletin · Engine · issued Jun 19, 2024
• This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
  T-SB-0103-20 Rev1 · Technical service bulletin · Engine · issued Jun 19, 2024
• Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting c…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting c…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 13, 2024
• Second Key Delivery Program
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 6, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 6, 2024
• Second Key Delivery Program
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 6, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Technical service bulletin · Unknown OR Other · issued Jun 6, 2024
• Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Service campaign · Unknown OR Other · issued May 31, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 · Service campaign · Unknown OR Other · issued May 31, 2024
• Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fal…
  T-SB-0061-23 Rev1 · Technical service bulletin · Structure · issued May 17, 2024
• Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, weldin…
  T-SB-0062-23 Rev1 · Technical service bulletin · Structure · issued May 15, 2024
• The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.…
  T-SB-0039-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is…
  T-SB-0038-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an expos…
  T-SB-0035-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.…
  T-SB-0039-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is…
  T-SB-0038-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an expos…
  T-SB-0035-24 · Technical service bulletin · Structure · issued Apr 19, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 Eligibility · Service campaign · Unknown OR Other · issued Apr 12, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 Eligibility · Service campaign · Unknown OR Other · issued Apr 12, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  Toyota Second Ke · Technical service bulletin · Electrical System · issued Mar 12, 2024
• DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The aff…
  23TJ01_P5_Dealer · Technical service bulletin · Electrical System · issued Mar 12, 2024
• TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered ke…
  T-SB-0013-24 · Technical service bulletin · Electrical System · issued Mar 4, 2024
• This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyo…
  T-PANT-2024-004- · Technical service bulletin · Engine and Engine Cooling · issued Mar 4, 2024
• The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch a…
  23TJ01 Current P · Technical service bulletin · Unknown OR Other · issued Mar 1, 2024
• TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision S…
  TSB002620 · Technical service bulletin · Equipment · issued Nov 28, 2023
• TSB: Some 2015 ? 2023 model year TRD Pro Edition 4Runner vehicles may exhibit an abnormal noise when in Reverse with the wheels at or near full lock due to interference between the…
  TSB007019 · Technical service bulletin · Wheels · issued Nov 8, 2023
• TSB: Some 2015 ? 2023 model year TRD Pro Edition 4Runner vehicles may exhibit an abnormal noise when in Reverse with the wheels at or near full lock due to interference between the…
  T-SB-0070-19 Rev · Technical service bulletin · Seat Belts · issued Oct 16, 2023
• TSB: Some 2021 ? 2024 model year 4Runner vehicles may exhibit a cyclic growl/groan noise from the front of the vehicle while driving in 2WD at around 30 ? 50 mph (48 ? 80 kph). The…
  T-SB-0075-23 · Technical service bulletin · Engine and Engine Cooling · issued Oct 5, 2023
• TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Follow the procedures outlined in this…
  TSB005823 · Technical service bulletin · Visibility · issued Aug 21, 2023
• TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979…
  TSB003220 · Technical service bulletin · Vehicle Speed Control · issued Aug 17, 2023
• 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 w…
  TTT073723 · Technical service bulletin · Unknown OR Other · issued Aug 17, 2023
• TSB: Some 2023 ? 2024 model year Toyota vehicles use hub bolts in place of studs/nuts to fasten the wheels to the vehicle. If non-compatible wheels or hub bolts/nuts are installed,…
  T-SB-0042-23 · Technical service bulletin · Wheels · issued Jul 3, 2023
• Ti: technical instructions for 23tj01 second key delivery program
  23TJ01-2 · Technical service bulletin · Electrical System · issued Jun 15, 2023
• RL: The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacti…
  23TJ01-1 · Technical service bulletin · Electrical System · issued Jun 15, 2023
• DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The aff…
  23TJ01 · Technical service bulletin · Electrical System · issued Jun 15, 2023
• OBSOLETE NOTICE November 28, 2022: This bulletin is now obsolete. Please see T-SB-0105-22
  T-SB-0031-22 Obs · Technical service bulletin · Communication · issued Nov 28, 2022
• OBSOLETE NOTICE November 28, 2022: This bulletin is now obsolete. Please see T-SB-0104-22.
  T-SB-0032-22 Obs · Technical service bulletin · Communication · issued Nov 28, 2022
• TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinis…
  T-SB-0105-22 · Technical service bulletin · Wheels · issued Nov 28, 2022
• TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain,…
  T-SB-0104-22 · Technical service bulletin · Equipment · issued Nov 28, 2022
• TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. The following guidelines should be performed to minimize vehicle com…
  T-SB-0036-22 Rev · Technical service bulletin · Equipment · issued Nov 22, 2022
• TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize re…
  T-SB-0029-22 Rev · Technical service bulletin · Equipment Adaptive/mobility · issued Nov 22, 2022
• TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain,…
  T-SB-0032-22 Rev · Technical service bulletin · Equipment · issued Sep 12, 2022
• TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinis…
  T-SB-0031-22 Rev · Technical service bulletin · Wheels · issued Aug 31, 2022
• TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. The following guidelines should be performed to minimize vehicle com…
  T-SB-0036-22 Rev · Technical service bulletin · Equipment · issued Aug 18, 2022
• TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize re…
  T-SB-0029-22 Rev · Technical service bulletin · Equipment · issued Aug 18, 2022
• TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PD…
  T-SB-0066-22 · Technical service bulletin · Structure · issued Aug 10, 2022
• TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain,…
  T-SB-0032-22 Rev · Technical service bulletin · Electrical System · issued Jul 22, 2022
• TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinis…
  T-SB-0031-22 Rev · Technical service bulletin · Wheels · issued Jul 21, 2022
• TT: To improve customer support of telematics connected services features, additional resources have been provided in the Service Lane - Knowledge Center.
  TTT069522 · Technical service bulletin · Communication · issued May 13, 2022
• TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. The following guidelines should be performed to minimize vehicle com…
  T-SB-0036-22 · Technical service bulletin · Equipment · issued Apr 8, 2022
• TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain,…
  T-SB-0032-22 · Technical service bulletin · Electrical System · issued Apr 1, 2022
• TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize re…
  T-SB-0029-22 · Technical service bulletin · Equipment Adaptive/mobility · issued Mar 29, 2022