2023 Toyota bZ4X
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2023 bZ4X are official communications between Toyota & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
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TSB #T-SB-0120-20 Rev
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 (ECU) is replaced. Read More »
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TSB #T-PANT-2024-004-
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 Toyota Complete Maintenance Care (TCMC) website. Read More »
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TSB #T-PANT-2024-004-
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 Toyota Complete Maintenance Care (TCMC) website. Read More »
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TSB #T-SB-0019-23
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 combination meter at scheduled maintenance intervals. Read More »
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TSB #TSB011120Rev1
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. Read More »
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TSB #T-SB-0107-20
TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Read More »
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TSB #T-PANT-2024-001-
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 February 1, 2024. Read More »
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TSB #23TJ01A
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. Read More »
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TSB #23TJ01P4B
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 impacting certain microchips. Read More »
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TSB #23TC05_Dealer Pa
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 range, current state of charge (SOC), and real-life energy ... Read More »
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TSB #23TC05A
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 range, current state of charge (SOC), and real-life energy ... Read More »
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TSB #22TD05_Dealer Pa
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 improve system operation. Read More »
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TSB #22TC11-bZ4X-Deal
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. Read More »
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TSB #22TC11-bZ4X
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. Read More »
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TSB #22TC11-bZ4X-Char
TI: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 22TC11 SOFTWARE UPDATE ? DC COLD WEATHER CHARGING CERTAIN 2023 MODEL YEAR bZ4X Read More »
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TSB #T-SB-0107-20 Rev
TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Read More »
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TSB #T-SB-0043-22
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 PDS: ?Careful inspection for paint chips/scratches and ... Read More »
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TSB #T-TT-0727-23
TT: MIL On with DTC P2D384B (Hybrid/EV Battery Pack Heater Performance Over Temperature) Read More »
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TSB #T-SB-0032-22 Rev
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, and battery load. Read More »
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TSB #T-SB-0044-22
TSB: Battery Electric Vehicles (BEVs) receive electricity via an external power source that is stored in the BEV traction battery. Read More »
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TSB #T-SB-0032-22
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, and battery load. Read More »
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TSB #23TJ01_P5_Dealer
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. Read More »
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TSB #23TJ01P5_RL_Publ
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 impacting certain microchips. Read More »
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TSB #23TJ01P5_TI_Publ
TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years Read More »
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TSB #23TJ01_P5_Dealer
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. Read More »
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TSB #Toyota Second Ke
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 and as more details become available. Read More »
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TSB #Dealer Packet
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. Read More »
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TSB #Current Phase Ti
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 and as more details become available. Read More »
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TSB #Dealer Letter
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. Read More »
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TSB #23TJ01A
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. Read More »
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TSB #23TJ01P4B
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 impacting certain microchips. Read More »
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TSB #23TJ01P4C
TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years Read More »
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TSB #23TJ01
TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years Read More »
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TSB #23TJ01_P3_Dealer
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. Read More »
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TSB #23TJ01P3_TI_fina
TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Multiple Models and Model Years Read More »
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TSB #23TJ01P3_RL_fina
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 impacting certain microchips. Read More »
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TSB #23TJ01
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. Read More »
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TSB #23TJ01-1
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 impacting certain microchips. Read More »
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TSB #23TJ01-2
TI: TECHNICAL INSTRUCTIONS FOR 23TJ01 Second Key Delivery Program Read More »
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TSB #23TC05_FAQ_10.04
FAQ: Certain 2023 Model Year bZ4X EV Charging Performance + Display Software Update Frequently Asked Questions Read More »
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TSB #23TC01a
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 more. Read More »
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TSB #23TC05
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 range, current state of charge (SOC), and real-life energy ... Read More »
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TSB #23TC05A
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 range, current state of charge (SOC), and real-life energy ... Read More »
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TSB #22TD05-Update
TI: TECHNICAL INSTRUCTIONS FOR LIMITED-SERVICE CAMPAIGN 22TD05 Software Update for ?Car Finder? Feature CERTAIN 2023 Model Year bZ4X Read More »
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TSB #T-TT-0709-22 Rev
TT: ?Some customers may be concerned that EV (Electric Vehicle) Battery charging performance does not meet their expectation. Read More »
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TSB #T-SB-0012-23
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 Crown vehicles with multimedia version 1511 or older may ... Read More »
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TSB #22TD05-Dealer
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 improve system operation. Read More »
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TSB #22TD05-Remedy
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 improve system operation. Read More »
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TSB #TSB005823
TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Read More »
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TSB #23TC01
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 more. Read More »
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TSB #23TC01b
TI: TECHNICAL INSTRUCTIONS FOR 23TC01 TOYOTA SAFETY SENSE INOPERATIVE INTERMITTENTLY Read More »
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TSB #23TC01 Dealer Pa
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 more. Read More »
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TSB #23TC01 Region Le
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 more. Read More »
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TSB #23TC01 TI - Publ
TI: TECHNICAL INSTRUCTIONS FOR 23TC01 TOYOTA SAFETY SENSE INOPERATIVE INTERMITTENTLY Read More »
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TSB #TSB003220
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 ? 2023 model year vehicles may be available provided the ... Read More »
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TSB #T-SB-0029-22 Rev
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 retainers for passenger side and rear seat floor mats. Read More »
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TSB #T-SB-0029-22
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 retainers for passenger side and rear seat floor mats. Read More »
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TSB #22TD05_Dealer Pa
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 improve system operation. Read More »
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TSB #T-SB-0043-22
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 PDS: ?Careful inspection for paint chips/scratches and ... Read More »
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TSB #TSB003220
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 ? 2023 model year vehicles may be available provided the ... Read More »
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TSB #22TD05_Dealer Pa
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 improve system operation. Read More »
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TSB #T-SB-0042-23
TSB: Some 2023 ? 2024 model year Toyota vehicles use hub bolts in place of studs/nuts to fasten the wheels to the vehicle. Read More »
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TSB #T-SB-0105-22
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
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TSB #T-SB-0031-22 Rev
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
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TSB #T-SB-0031-22 Rev
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
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TSB #T-SB-0105-22
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
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TSB #23TC01a
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 more. Read More »
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TSB #23TC01
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 more. Read More »
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TSB #23TC01a
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 more. Read More »
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TSB #23TC01 Dealer Pa
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 more. Read More »
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TSB #23TC01 Region Le
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 more. Read More »
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TSB #T-SB-0012-23
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 Crown vehicles with multimedia version 1511 or older may ... Read More »
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TSB #23TC05B
TI: TECHNICAL INSTRUCTIONS FOR Software Update 23TC05 EV Charging Performance + Display Software Update CERTAIN 2023 bZ4X Read More »
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TSB #T-SB-0032-22 Obs
OBSOLETE NOTICE November 28, 2022: This bulletin is now obsolete. Please see T-SB-0104-22. Read More »
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TSB #T-SB-0031-22 Obs
OBSOLETE NOTICE November 28, 2022: This bulletin is now obsolete. Please see T-SB-0105-22 Read More »
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TSB #TTT073723
TT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. Read More »
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TSB #TSB003220
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 ? 2023 model year vehicles may be available provided the ... Read More »
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TSB #T-TT-0709-22 Rev
TT: ?Some customers may be concerned that EV (Electric Vehicle) Battery charging performance does not meet their expectation. Read More »
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TSB #T-SB-0104-22
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, and battery load. Read More »
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TSB #T-SB-0036-22 Rev
TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. Read More »
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TSB #T-TT-0709-22
TT: ?Some customers may be concerned that HV Battery charging performance does not meet their expectation. Read More »
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TSB #T-SB-0032-22 Rev
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, and battery load. Read More »
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TSB #T-SB-0029-22 Rev
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 retainers for passenger side and rear seat floor mats. Read More »
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TSB #T-SB-0032-22 Rev
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, and battery load. Read More »
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TSB #T-SB-0043-22
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 PDS: ?Careful inspection for paint chips/scratches and ... Read More »
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TSB #T-SB-0044-22
TSB: Battery Electric Vehicles (BEVs) receive electricity via an external power source that is stored in the BEV traction battery. Read More »
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TSB #T-SB-0036-22
TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. Read More »
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TSB #TTT059920 Rev4
TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns Read More »
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TSB #T-TT-0734-23
TT: When setting up the Toyota Audio Multimedia (21MM) user profile, if the QR code is not working please use the following recommendations. Read More »
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TSB #22TC09_Dealer Pa
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 Highway Traffic Safety Administration?s (NHTSA) database. Read More »
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TSB #22TC09-Dealer
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 Highway Traffic Safety Administration?s (NHTSA) database. Read More »
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TSB #22TC09-Remedy
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 Highway Traffic Safety Administration?s (NHTSA) database. Read More »
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TSB #22TC09
TI: TECHNICAL INSTRUCTIONS FORSPECIAL SERVICE CAMPAIGN 22TC09 bZ4X VIN VERIFICATION CERTAIN 2023 MODEL YEAR bZ4X VEHICLES Read More »
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TSB #22TD05-Update
TI: TECHNICAL INSTRUCTIONS FOR LIMITED-SERVICE CAMPAIGN 22TD05 Software Update for ?Car Finder? Feature CERTAIN 2023 Model Year bZ4X Read More »
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TSB #T-SB-0036-22 Rev
TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. Read More »
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TSB #T-SB-0029-22 Rev
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 retainers for passenger side and rear seat floor mats. Read More »
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TSB #T-SB-0044-22
TSB: Battery Electric Vehicles (BEVs) receive electricity via an external power source that is stored in the BEV traction battery. Read More »
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TSB #T-SB-0029-22
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 retainers for passenger side and rear seat floor mats. Read More »
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TSB #23TJ01_P5_Dealer
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. Read More »
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TSB #23TJ01 Current P
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 and as more details become available. Read More »
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TSB #TTT073723
TT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. Read More »
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TSB #T-SB-0029-22
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 retainers for passenger side and rear seat floor mats. Read More »