TSB T-TT-0771-25 — Toyota Service bulletin
T-TT-0771-25 is a service bulletin on file with NHTSA for the Toyota RAV4, 2021–2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Some 2021-2025 MY Highlander HV, Sienna HV, RAV4, and RAV4 HV, may exhibit an oil leak from the area where the camshaft cover, camshaft housing, and the timing chain covers meet. This is typically seen on the exhaust side of the engine.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years T-TT-0771-25 names
Every document filed under T-TT-0771-25
| Document ID | Filed | Type |
|---|---|---|
| T-TT-0771-25 | January 28, 2025 | Service bulletin |
What T-TT-0771-25 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB T-TT-0771-25?
T-TT-0771-25 is a service bulletin filed with NHTSA by Toyota, covering the Toyota RAV4 across the 2021–2025 model years. NHTSA's summary reads: Some 2021-2025 MY Highlander HV, Sienna HV, RAV4, and RAV4 HV, may exhibit an oil leak from the area where the camshaft cover, camshaft housing, and the timing chain covers meet. This is typically seen on the exhaust side of the engine.
Which vehicles does T-TT-0771-25 cover?
NHTSA's file names Toyota RAV4 (2021–2025). 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-TT-0771-25 a recall, and is the repair free?
No. T-TT-0771-25 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-TT-0771-25?
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-TT-0771-25, 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-TT-0771-25. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.