TSB 24TC05 — Toyota Service campaign
24TC05 is a service campaign on file with NHTSA for the Toyota Highlander, 2023–2024 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. The Engine Control Computer software has a programing error which can cause the exhaust variable valve timing (VVT) locking pin to temporarily get stuck. When this happens, an engine malfunction indicator lamp (MIL) can appear on the dashboard as well as diagnostic trouble code…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 24TC05 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years 24TC05 names
| Vehicle | Model years |
|---|---|
| Toyota Highlander | 2023, 2024 |
Every document filed under 24TC05
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 |
|---|---|---|
| 24TC05 | September 19, 2024 | Service campaign |
| 24TC05 | September 18, 2024 | Service campaign |
| 24TC05 | September 17, 2024 | Service campaign |
What 24TC05 covers
Electrical, Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 24TC05?
24TC05 is a service campaign filed with NHTSA by Toyota, covering the Toyota Highlander across the 2023–2024 model years. NHTSA's summary reads: The Engine Control Computer software has a programing error which can cause the exhaust variable valve timing (VVT) locking pin to temporarily get stuck. When this happens, an engine malfunction indicator lamp (MIL) can appear on the dashboard as well as diagnostic trouble code…
Which vehicles does 24TC05 cover?
NHTSA's file names Toyota Highlander (2023–2024). 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 24TC05 a recall, and is the repair free?
24TC05 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of 24TC05?
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 24TC05, 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 24TC05. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.