2024 Toyota BZ4X service bulletins & manufacturer communications

104 manufacturer communications are on file with NHTSA for the 2024 Toyota BZ4X. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• Some 2023 – 2025 model year bZ4X vehicles may exhibit a creaking noise coming from the strut mounting bearing of the front suspension when turning. A new part has been developed to…
  T-SB-0043-26 · Technical service bulletin · Suspension · issued Aug 5, 2026
• Some Customers for the above vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate on…
  T-TT-0801-26 · Technical service bulletin · Engine · issued Apr 16, 2026
• Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate o…
  T-TT-0801-26 · Technical service bulletin · Engine · issued Mar 6, 2026
• 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 / 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 / Other · issued Nov 4, 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
• 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
• Some 2024 model year bZ4X vehicles may exhibit a condition where the charging limit setting defaults to full after every key cycle, removing the upper limit set by the customer. Th…
  T-SB-0025-25 · 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
• Customers or Technicians may want to view the user manual or the troubleshooting guide for the Toyota EV Charger (Part Number PTQ64-00240). Basic operation and diagnostic troublesh…
  T-TT-0770-24 · Technical service bulletin · Engine · issued Dec 18, 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 / 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 / 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 / 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 / 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 / Other · issued Sep 25, 2024
• SECOND KEY DELIVERY PROGRAM Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown / 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 / 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 / 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 / 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 / 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 / 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 / Other · issued Jun 13, 2024
• Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Technical service bulletin · Unknown / 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 / 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 / Other · issued Jun 13, 2024
• Second Key Delivery Program
  23TJ01 · Technical service bulletin · Unknown / 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 / Other · issued Jun 6, 2024
• Second Key Delivery Program
  23TJ01 · Technical service bulletin · Unknown / 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 / Other · issued Jun 6, 2024
• Second Key Delivery Program Frequently Asked Questions
  23TJ01 · Service campaign · Unknown / 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 / 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 / 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 / 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 / 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 / Other · issued Mar 1, 2024
• 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…
  TSB002723 · Technical service bulletin · Tires · issued Feb 19, 2024
• 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…
  TSB002623 · Technical service bulletin · Equipment · issued Feb 19, 2024
• TSB: 2024 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…
  TSB002823 · Technical service bulletin · Equipment · issued Feb 13, 2024
• 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,…
  TSB002423 · Technical service bulletin · Electrical System · issued Feb 13, 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
• 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…
  TSB009523 · Technical service bulletin · Equipment · issued Nov 21, 2023
• TSB: Battery Electric Vehicles (BEVs) store electricity received via an external power source in the BEV traction battery. When the BEV is not used for a period of 30 days or more,…
  TSB009323 · Technical service bulletin · Electrical System · issued Nov 15, 2023
• TSB: 2024 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…
  TSB002823 · Technical service bulletin · Equipment · issued Aug 28, 2023
• 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…
  TSB002623 · Technical service bulletin · Equipment · issued Aug 28, 2023
• 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,…
  TSB002423 · Technical service bulletin · Equipment · issued Aug 28, 2023
• 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…
  TSB002723 · Technical service bulletin · Wheels · issued Aug 28, 2023
• 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…
  LSB001923 · Technical service bulletin · Equipment · issued Aug 24, 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 / Other · issued Aug 17, 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
• 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