2023 Toyota Corolla
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2023 Corolla 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-TT-0731-23
TT: Some customers may complain of the suspension feeling stiff while driving or going over bumps. Some dealerships may have forgotten to remove the transportation spacer during the PDS process which can result in a stiffer than normal ... Read More »
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TSB #23TC02
DP: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation. Read More »
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TSB #TSB010421
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
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TSB #23TC02
TI: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 23TC02 BRAKE ECU REPROGRAM CERTAIN 2023 MODEL YEAR COROLLA HV Read More »
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TSB #23TC02a
RL: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation. Read More »
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TSB #TSB008823
TSB: Some 2020 ? 2024 model year Corolla vehicles may exhibit a vibration or rattle noise from the right-hand engine mounting insulator sub-assembly. 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-TT-0699-22 Rev
TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the following message ?Engine Maintenance Required Visit Your Dealer? on the combination meter 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 #23TC02a
RL: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation. 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 #TSB010421
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
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TSB #TTT074323
TT: MIL On with DTC P045600 Evaporative Emission System Leak Detected (Very Small Leak) Read More »
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TSB #T-SB-0013-24
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Read More »
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TSB #TSB010421
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
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TSB #T-SB-0100-22
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 body ... Read More »
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TSB #T-SB-0099-22
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 #23TC02
DP: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation. Read More »
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TSB #T-SB-0033-22 Rev
TSB: Hybrid vehicles are equipped with two types of batteries: ?Hybrid vehicle (HV) battery. ?Auxiliary (12V) battery. 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-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 #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 #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 #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 #TSB008823
TSB: Some 2020 ? 2024 model year Corolla vehicles may exhibit a vibration or rattle noise from the right-hand engine mounting insulator sub-assembly. Read More »
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TSB #T-SB-0100-22
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 body ... Read More »
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TSB #T-SB-0099-22
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 #23TD01 Corolla L
DP: The front license plate bracket provided with the vehicle has clips that potentially interfere with the lower grille assembly. This interference can make it more difficult to install the front license plate bracket. 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-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 #T-TT-0731-23
TT: Some customers may complain of the suspension feeling stiff while driving or going over bumps. Some dealerships may have forgotten to remove the transportation spacer during the PDS process which can result in a stiffer than normal ... 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 #TSB010421
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. 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 #TTT074423
TT: Some 2022/2023 Japan built (VIN JTD) Corolla/Corolla HV sedan vehicles may have a rattle noise coming from the headliner. 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 #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 #TTT069522
TT: To improve customer support of telematics connected services features, additional resources have been provided in the Service Lane - Knowledge Center. 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-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-SB-0100-22
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 body ... Read More »
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TSB #T-SB-0099-22
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-0084-22
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-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-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 #T-TT-0678-21 Rev
TT: Some 19CY LG DCM equipped vehicles may not be able to complete the firmware update due to not having an active account or waived services during the trial. Follow the steps below to enable ?Temp DCM Activation?. 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 #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-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 #TTT074423
TT: Some 2022/2023 Japan built (VIN JTD) Corolla/Corolla HV sedan vehicles may have a rattle noise coming from the headliner. 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 #23TD01 Corolla L
DP: The front license plate bracket provided with the vehicle has clips that potentially interfere with the lower grille assembly. This interference can make it more difficult to install the front license plate bracket. 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 »