TSB T-SB-0046-25 — Toyota Service bulletin
T-SB-0046-25 is a service bulletin on file with NHTSA for the Toyota 4Runner, 2025–2026 model years, filed and re-filed as 4 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Some 2024 – 2026 model year Land Cruiser, and 2025 – 2026 model year 4Runner and 4Runner Hybrid vehicles may exhibit a condition where the front brakes produce a squealing noise when driving in reverse.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years T-SB-0046-25 names
| Vehicle | Model years |
|---|---|
| Toyota 4Runner | 2025, 2026 |
Every document filed under T-SB-0046-25
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| T-SB-0046-25 Rev2 | February 12, 2026 | Service bulletin |
| T-SB-0046-25 Rev2 | November 19, 2025 | Service bulletin |
| T-SB-0046-25 Rev1 | September 4, 2025 | Service bulletin |
| T-SB-0046-25 | July 24, 2025 | Service bulletin |
What T-SB-0046-25 covers
Brakes & stability — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB T-SB-0046-25?
T-SB-0046-25 is a service bulletin filed with NHTSA by Toyota, covering the Toyota 4Runner across the 2025–2026 model years. NHTSA's summary reads: Some 2024 – 2026 model year Land Cruiser, and 2025 – 2026 model year 4Runner and 4Runner Hybrid vehicles may exhibit a condition where the front brakes produce a squealing noise when driving in reverse.
Which vehicles does T-SB-0046-25 cover?
NHTSA's file names Toyota 4Runner (2025–2026). 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-0046-25 a recall, and is the repair free?
No. T-SB-0046-25 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-0046-25?
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-0046-25, 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-0046-25. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.