TSB T-SB-0120-20 — Toyota Service bulletin
T-SB-0120-20 is a service bulletin on file with NHTSA for 4 Toyota models, 2023–2024 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years T-SB-0120-20 names
| Vehicle | Model years |
|---|---|
| Toyota Corolla | 2023, 2024 |
| Toyota Highlander | 2024 |
| Toyota Prius | 2023, 2024 |
| Toyota Tacoma | 2024 |
Every document filed under T-SB-0120-20
| Document ID | Filed | Type |
|---|---|---|
| T-SB-0120-20 Rev2 | January 30, 2025 | Service bulletin |
What T-SB-0120-20 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB T-SB-0120-20?
T-SB-0120-20 is a service bulletin filed with NHTSA by Toyota, covering 4 Toyota models across the 2023–2024 model years. NHTSA's summary reads: OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.
Which vehicles does T-SB-0120-20 cover?
NHTSA's file names Toyota Corolla (2023–2024); Toyota Highlander (2024); Toyota Prius (2023–2024); Toyota Tacoma (2024). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB T-SB-0120-20 a recall, and is the repair free?
No. T-SB-0120-20 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of T-SB-0120-20?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under T-SB-0120-20, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under T-SB-0120-20. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.