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Service bulletin T-SB-0120-20 Rev

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 id10234325
Published by NHTSA2023-04-17
Manufacturer's numberT-SB-0120-20 Rev
Manufacturer's date2023-03-15
NHTSA componentSTEERING

NHTSA's summary

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. Techstream software has been modified to indicate when configuration software is required. A new Configure column has been added to the Techstream Health Check Results screen to show when configuration software is available for a specific ECU. Follow the Operation Procedure in this bulletin to complete the ECU Software Configure Process.

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

Steering

Vehicles listed
TOYOTA BZ4X2023
TOYOTA COROLLA2023
TOYOTA COROLLA CROSS2023
TOYOTA PRIUS2023
TOYOTA TUNDRA2022, 2023

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

Recalls for the same vehicles and component
25V0400002025-01-29. STEERING:COLUMN; AIR BAGS:FRONTAL:DRIVER CLOCKSPRING/SPIRAL CASSETTE
20247102024-11-21. Steering
24V8780002024-11-21. STEERING
23V4800002023-07-12. AIR BAGS:FRONTAL:DRIVER CLOCKSPRING/SPIRAL CASSETTE; STEERING:COLUMN

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
T-SB-0069-22 Rev2023-01-17. Service bulletin. TSB: Some 2022 model year Tundra, Tundra Hybrid, and Tundra Hybrid TRD Pro vehicles may exhibit a red or yellow Electronic Power Steering (EPS) light ON condition with Diagnostic Trouble Code (DTC) C05D604 and/or C15D704 present when starting the vehicle. The EPS logic in the EPS gear assembly ECU has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition
T-SB-0069-222022-09-15. Service bulletin. TSB: Some 2022 model year Tundra and Tundra TRD Pro vehicles may experience a yellow Electronic Power Steering (EPS) light ON condition with Diagnostic Trouble Code (DTC) C05D604 and/or C15D704 present when starting the vehicle. The EPS logic in the EPS gear assembly ECU has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition.