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Service bulletin 26TC01

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11038372
Published by NHTSA2026-10-08
Manufacturer's number26TC01
Manufacturer's date2026-09-08
Campaign id or software version26TC01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 26TC01 POWER DISTRIBUTION BOX CERTAIN 2024 – 2025 MODEL YEAR PRIUS 2024 MODEL YEAR PRIUS PHV

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
TOYOTA PRIUS2024, 2025
TOYOTA PRIUS PLUG-IN HYBRID2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA PRIUS PRIME2024 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V0490002026-01-28. ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS; LATCHES/LOCKS/LINKAGES:DOORS:LATCH
20242282024-04-17. Electrical
24V2740002024-04-17. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
26TC012026-10-08. Service campaign. An electrical connection for the rear window defogger may not have been installed correctly during vehicle assembly. Overtime, this can cause the rear window defogger to become inoperable, which could reduce visibility through the rear window when moisture or condensation is present
T-SB-0058-23 Rev12025-07-10. Service campaign. 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 Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
T-TT-0779-252025-06-06. Service bulletin. 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 how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
T-TT-0779-252025-05-15. Service bulletin. 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 how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
T-SB-0013-24 Rev12025-04-08. Service bulletin. 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. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
T-SB-0013-24 Rev12025-03-11. Service bulletin. 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. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
T-SB-0120-20 Rev22025-02-12. Service bulletin. OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.
T-SB-0015-252025-02-12. Service bulletin. 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) is replaced. GTS+ software has been modified to indicate when configuration software is required. A new Configure column has been added to the GTS+ Health Check Results screen to show when configuration software is available for a specific ECU.
T-SB-0111-20 Rev22025-02-12. Service bulletin. OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25.
T-SB-0011-252025-02-12. Service bulletin. 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 screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key.