2023 Toyota BZ4X service bulletins & manufacturer communications

161 manufacturer communications are on file with NHTSA for the 2023 Toyota BZ4X. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• Toyota is conducting a noncompliance equipment recall involving certain Rear Combination Lamp service parts for Toyota bZ4X sold from December 2023 to November 2025 in the U.S. App…
  26TH01 · Technical service bulletin · Exterior Lighting · issued Jan 23, 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
• Model Year 2023-2025 bZ4X vehicles have charge ports that use the CCS standard. This program is for lessees and owners of these vehicles to receive 1 complimentary NACS Charging Ad…
  25TD03 · Service campaign · Unknown OR Other · issued Nov 4, 2025
• Technical instructions for 25tc03 reprogramming for forward recognition camera certain 2023 corolla cross 2023 corolla cross hv 2023 bz4x
  25TC03 · Technical service bulletin · Forward Collision Avoidance · issued Jul 11, 2025
• Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
  T-TT-0784-25 Rev1 · Technical service bulletin · Engine · issued Jun 17, 2025
• Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
  T-TT-0784-25 · Technical service bulletin · Engine · issued Jun 13, 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
• Technical instructions for 25tc03 reprogramming for forward recognition camera certain 2023 corolla cross 2023 corolla cross hv 2023 bz4x
  25TC03 · Technical service bulletin · Forward Collision Avoidance · issued Apr 19, 2025
• Technical instructions for 25tc03 reprogramming for forward recognition camera certain 2023 corolla cross 2023 corolla cross hv 2023 bz4x
  25TC03 · Technical service bulletin · Forward Collision Avoidance · issued Apr 19, 2025
• Frequently Asked Questions SPECIAL SERVICE CAMPAIGN 25TC03 Certain 2023 Model Year Corolla Cross Certain 2023 Model Year Corolla Cross HV Certain 2023 Model Year bZ4x Certain 2021-…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 17, 2025
• Included vehicles are equipped with Toyota Safety Sense (TSS) 3.0, which includes the Pre-Collision System (PCS), which uses the forward recognition camera. In rare cases, a softwa…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 17, 2025
• Frequently Asked Questions SPECIAL SERVICE CAMPAIGN 25TC03 Certain 2023 Model Year Corolla Cross Certain 2023 Model Year Corolla Cross HV Certain 2023 Model Year bZ4x Certain 2021-…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 17, 2025
• Included vehicles are equipped with Toyota Safety Sense (TSS) 3.0, which includes the Pre-Collision System (PCS), which uses the forward recognition camera. In rare cases, a softwa…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 17, 2025
• Technical instructions for 25tc03 reprogramming for forward recognition camera certain 2023 corolla cross 2023 corolla cross hv 2023 bz4x
  25TC03 · Technical service bulletin · Forward Collision Avoidance · issued Apr 16, 2025
• Frequently Asked Questions SPECIAL SERVICE CAMPAIGN 25TC03 Certain 2023 Model Year Corolla Cross Certain 2023 Model Year Corolla Cross HV Certain 2023 Model Year bZ4x Certain 2021-…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 16, 2025
• Included vehicles are equipped with Toyota Safety Sense (TSS) 3.0, which includes the Pre-Collision System (PCS), which uses the forward recognition camera. In rare cases, a softwa…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 16, 2025
• Technical instructions for 25tc03 reprogramming for forward recognition camera certain 2023 corolla cross 2023 corolla cross hv 2023 bz4x
  25TC03 · Technical service bulletin · Forward Collision Avoidance · issued Apr 16, 2025
• Frequently Asked Questions SPECIAL SERVICE CAMPAIGN 25TC03 Certain 2023 Model Year Corolla Cross Certain 2023 Model Year Corolla Cross HV Certain 2023 Model Year bZ4x Certain 2021-…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 16, 2025
• Included vehicles are equipped with Toyota Safety Sense (TSS) 3.0, which includes the Pre-Collision System (PCS), which uses the forward recognition camera. In rare cases, a softwa…
  25TC03 · Service campaign · Forward Collision Avoidance · issued Apr 16, 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-0779-25 · 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-0779-25 · Technical service bulletin · Electrical System · issued Apr 2, 2025
• OBSOLETE NOTICE February 11, 2025: This bulletin is now obsolete. Please see T-SB-0021-25.
  T-SB-0107-20 Rev2 · Technical service bulletin · Engine · issued Feb 12, 2025
• 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 releas…
  T-SB-0021-25 · Technical service bulletin · Engine · 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
• 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 releas…
  T-SB-0021-25 · Technical service bulletin · Engine · 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
• OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.
  T-SB-0120-20 Rev2 · Technical service bulletin · Electrical System · issued Jan 30, 2025
• Some 2021 – 2025 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) …
  T-SB-0015-25 · Technical service bulletin · Electrical System · issued Jan 29, 2025
• OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25.
  T-SB-0111-20 Rev2 · Technical service bulletin · Electrical System · issued Jan 23, 2025
• 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 GTS+ Software Health Check Results scr…
  T-SB-0011-25 · Technical service bulletin · Electrical System · issued Jan 23, 2025
• TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years
  23TJ01P5_TI_Publ · Technical service bulletin · Electrical System · issued Dec 21, 2024
• 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…
  23TJ01P5_RL_Publ · Technical service bulletin · Electrical System · issued Dec 21, 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 Dec 21, 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 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 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
• Some customers may notice momentary power dips on graphs produced by the Charge Point Charger’s phone App during A/C charging.
  T-TT-0757-24 · Technical service bulletin · Engine · issued Jun 19, 2024
• Some customers may notice momentary power dips on graphs produced by the Charge Point Charger’s phone App during A/C charging.
  T-TT-0757-24 · 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
• •Some customers may be concerned that EV (Electric Vehicle) Battery charging performance does not meet their expectation. •To extend the life of the EV Battery, some limitations ma…
  T-TT-0709-22 Rev2 · Technical service bulletin · Engine · issued May 10, 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
• Some 2021 – 2024 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) …
  T-SB-0120-20 Rev2 · Technical service bulletin · Electrical System · issued Apr 15, 2024
• Some 2021 – 2024 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) …
  T-SB-0120-20 Rev2 · Technical service bulletin · Electrical System · issued Apr 15, 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
• 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 GTS+ Software Health Check Results scr…
  T-SB-0111-20 Rev2 · Technical service bulletin · Electrical System · issued Apr 11, 2024
• Customers have expressed concerns about the performance of Qi Wireless Chargers. Wireless chargers on applicable vehicles are designed to work with Qi Certified devices only. MagSa…
  T-TT-0754-24 · Technical service bulletin · Electrical System · issued Apr 11, 2024
• 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 GTS+ Software Health Check Results scr…
  T-SB-0111-20 Rev2 · Technical service bulletin · Electrical System · issued Apr 11, 2024
• Customers have expressed concerns about the performance of Qi Wireless Chargers. Wireless chargers on applicable vehicles are designed to work with Qi Certified devices only. MagSa…
  T-TT-0754-24 · Technical service bulletin · Electrical System · issued Apr 11, 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
• 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
• 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 · Unknown OR Other · issued Mar 1, 2024
• PANT: Toyota is pleased to announce to all field and dealer personnel that we have launched a new part number to the Toyota Complete Maintenance Care (TCMC) Program, effective Febr…
  T-PANT-2024-001- · Technical service bulletin · Electrical System · issued Feb 1, 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…
  Current Phase Ti · Technical service bulletin · Electrical System · issued Jan 31, 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…
  Dealer Packet · Technical service bulletin · Electrical System · issued Jan 31, 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…
  Dealer Letter · Technical service bulletin · Electrical System · issued Jan 3, 2024
• TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years
  23TJ01P4C · Technical service bulletin · Electrical System · issued Nov 21, 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…
  23TJ01P4B · Technical service bulletin · Electrical System · issued Nov 21, 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…
  23TJ01A · Technical service bulletin · Electrical System · issued Nov 21, 2023
• TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years
  23TJ01 · Technical service bulletin · Electrical System · issued Nov 15, 2023
• TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years
  23TJ01P3_TI_fina · Technical service bulletin · Electrical System · issued Oct 12, 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_P3_Dealer · Technical service bulletin · Electrical System · issued Oct 12, 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…
  23TJ01P3_RL_fina · Technical service bulletin · Electrical System · issued Oct 11, 2023
• FAQ: Certain 2023 Model Year bZ4X EV Charging Performance + Display Software Update Frequently Asked Questions
  23TC05_FAQ_10.04 · Technical service bulletin · Electrical System · issued Oct 4, 2023
• DP: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC-charging performance, and enhance visualization of the remaining ra…
  23TC05_Dealer Pa · Technical service bulletin · Electrical System · issued Oct 4, 2023
• Ti: technical instructions for 23tc01 toyota safety sense inoperative intermittently
  23TC01b · Technical service bulletin · Air Bags · issued Aug 31, 2023
• RL: The subject vehicles are equipped with Toyota Safety Sense (TSS) which consists of several driving assist features, including pre-collision braking, lane departure warning, and…
  23TC01a · Technical service bulletin · Forward Collision Avoidance · issued Aug 31, 2023
• DP: The subject vehicles are equipped with Toyota Safety Sense (TSS) which consists of several driving assist features, including pre-collision braking, lane departure warning, and…
  23TC01 · Technical service bulletin · Lane Departure · issued Aug 31, 2023
• Ti: technical instructions for 23tc01 toyota safety sense inoperative intermittently
  23TC01 TI - Publ · Technical service bulletin · Air Bags · issued Aug 31, 2023
• RL: The subject vehicles are equipped with Toyota Safety Sense (TSS) which consists of several driving assist features, including pre-collision braking, lane departure warning, and…
  23TC01 Region Le · Technical service bulletin · Lane Departure · issued Aug 31, 2023
• DP: The subject vehicles are equipped with Toyota Safety Sense (TSS) which consists of several driving assist features, including pre-collision braking, lane departure warning, and…
  23TC01 Dealer Pa · Technical service bulletin · Lane Departure · issued Aug 31, 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 · Air Bags · 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 · Communication · issued Aug 17, 2023
• TI: TECHNICAL INSTRUCTIONS FOR Software Update 23TC05 EV Charging Performance + Display Software Update CERTAIN 2023 bZ4X
  23TC05B · Technical service bulletin · Back Over Prevention · issued Jul 27, 2023
• RL: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC-charging performance, and enhance visualization of the remaining ra…
  23TC05A · Technical service bulletin · Electrical System · issued Jul 27, 2023
• DP: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC-charging performance, and enhance visualization of the remaining ra…
  23TC05 · Technical service bulletin · Electrical System · issued Jul 27, 2023
• 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 r…
  T-SB-0107-20 · Technical service bulletin · Engine and Engine Cooling · issued Jul 25, 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
• TT: When setting up the Toyota Audio Multimedia (21MM) user profile, if the QR code is not working please use the following recommendations.
  T-TT-0734-23 · Technical service bulletin · Equipment · issued May 1, 2023
• TSB: Some 2023 model year bZ4X vehicles may exhibit a condition in which the maintenance reminder messages (Figure 1) do not display on the multi-information display (MID) in the c…
  T-SB-0019-23 · Technical service bulletin · Engine and Engine Cooling · issued Apr 24, 2023
• TT: MIL On with DTC P2D384B (Hybrid/EV Battery Pack Heater Performance Over Temperature)
  T-TT-0727-23 · Technical service bulletin · Electrical System · issued Mar 27, 2023
• TSB: Some 2021 ? 2023 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (…
  T-SB-0120-20 Rev · Technical service bulletin · Steering · issued Mar 15, 2023
• TSB: Some 2023 model year bZ4X vehicles with multimedia version 1505 or older; Corolla, Corolla Hybrid, and Corolla Hatchback vehicles with multimedia version 1506 or older; and Cr…
  T-SB-0012-23 · Technical service bulletin · Exterior Lighting · issued Mar 3, 2023
• TT: ?Some customers may be concerned that EV (Electric Vehicle) Battery charging performance does not meet their expectation. ?To extend the life of the EV Battery, some limitation…
  T-TT-0709-22 Rev · Technical service bulletin · Electrical System · issued Dec 19, 2022
• 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
• DP: Toyota recently became aware that the make of the 2023 bZ4X may be mis-identified as ?Subaru? when the first eight digits of the vehicle?s VIN is decoded using the National Hig…
  22TC09_Dealer Pa · Technical service bulletin · Equipment · issued Nov 22, 2022
• DP: The Car Finder app, which is included with a Toyota One app subscription, operates the headlights to help locate the vehicle in a parking lot. Updated software is available to …
  22TD05_Dealer Pa · Technical service bulletin · Seat Belts · issued Nov 17, 2022
• Ti: technical instructions for limited-service campaign 22td05 software update for ?car finder? Feature certain 2023 model year bz4x
  22TD05-Update · Technical service bulletin · Equipment · issued Nov 3, 2022
• Ti: technical instructions for special service campaign 22tc11 software update ? Dc cold weather charging certain 2023 model year bz4x
  22TC11-bZ4X-Char · Technical service bulletin · Electrical System · issued Nov 2, 2022
• RL: A software update has been developed for certain 2023 model year bZ4X vehicles. Included in the update is an improvement of DC charging performance during low temperatures.
  22TC11-bZ4X · Technical service bulletin · Electrical System · issued Nov 2, 2022
• DP: A software update has been developed for certain 2023 model year bZ4X vehicles. Included in the update is an improvement of DC fast charging performance during low temperatures…
  22TC11-bZ4X-Deal · Technical service bulletin · Electrical System · issued Nov 2, 2022
• RL: The Car Finder app, which is included with a Toyota One app subscription, operates the headlights to help locate the vehicle in a parking lot. Updated software is available to …
  22TD05-Remedy · Technical service bulletin · Exterior Lighting · issued Nov 2, 2022
• DP: The Car Finder app, which is included with a Toyota One app subscription, operates the headlights to help locate the vehicle in a parking lot. Updated software is available to …
  22TD05-Dealer · Technical service bulletin · Exterior Lighting · issued Nov 2, 2022
• Ti: technical instructions forspecial service campaign 22tc09 bz4x vin verification certain 2023 model year bz4x vehicles
  22TC09 · Technical service bulletin · Equipment · issued Nov 2, 2022
• RL: Toyota recently became aware that the make of the 2023 bZ4X may be mis-identified as ?Subaru? when the first eight digits of the vehicle?s VIN is decoded using the National Hig…
  22TC09-Remedy · Technical service bulletin · Equipment · issued Nov 2, 2022
• DP: Toyota recently became aware that the make of the 2023 bZ4X may be mis-identified as ?Subaru? when the first eight digits of the vehicle?s VIN is decoded using the National Hig…
  22TC09-Dealer · Technical service bulletin · Equipment · issued Nov 2, 2022
• TT: ?Some customers may be concerned that HV Battery charging performance does not meet their expectation. ?To extend the life of the HV Battery, some limitations may occur during …
  T-TT-0709-22 · Technical service bulletin · Equipment · issued Sep 29, 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: 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 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
• 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 r…
  T-SB-0107-20 Rev · Technical service bulletin · Electrical System · issued Jul 19, 2022
• 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 …
  TSB011120Rev1 · Technical service bulletin · Engine and Engine Cooling · issued Jul 8, 2022
• TSB: Battery Electric Vehicles (BEVs) receive electricity via an external power source that is stored in the BEV traction battery. When the electric vehicle will not be used for a …
  T-SB-0044-22 · Technical service bulletin · Electrical System · issued Apr 27, 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-0043-22 · Technical service bulletin · Equipment · issued Apr 27, 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
• 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 c…
  TTT059920 Rev4 · Technical service bulletin · Equipment · issued Mar 24, 2022