TSB WTY035 — Kia Warranty extension
WTY035 is a warranty extension on file with NHTSA for the Kia Sorento, 2016–2017 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY035) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY035) to diagnose a coolant leak from the cylinder head gasket area and, if…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. WTY035 is filed as a warranty extension, 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 WTY035 names
| Vehicle | Model years |
|---|---|
| Kia Sorento | 2016, 2017 |
Every document filed under WTY035
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 |
|---|---|---|
| WTY035_TSB_R3 | October 8, 2025 | Warranty extension |
| WTY035_TSB | June 13, 2024 | Warranty extension |
What WTY035 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB WTY035?
WTY035 is a warranty extension filed with NHTSA by Kia, covering the Kia Sorento across the 2016–2017 model years. NHTSA's summary reads: TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY035) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY035) to diagnose a coolant leak from the cylinder head gasket area and, if…
Which vehicles does WTY035 cover?
NHTSA's file names Kia Sorento (2016–2017). 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 WTY035 a recall, and is the repair free?
WTY035 is filed as a warranty extension, 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 WTY035?
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 WTY035, 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 WTY035. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.