Kia bulletin WTY026_QA
What it saysThis bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Mar 18, 2026, received May 4, 2022, about the engine — 7 documents under this number: WTY026_TSB_R2, WTY026_TSB_R1, WTY026_TSB, WTY026_OWNR_YP and 3 more. It names 7 model years (2016–2018). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
What it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
TECHNICAL SERVICE BULLETIN: OIL PRESSURE SWITCH (OPS) REPLACEMENT - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding the replacement of the Oil Pressure Switch associated with the 'Warranty Extension Program' (WTY026) on some 2014-2018MY vehicles listed in the table below, for repairs that may be necessary to address an Oil Pressure Switch leak in the eligible vehicles listed below from 10 years/100,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Oil Pressure Switch leaking condition at no cost to the customers during this extended warranty period. Follow the procedure outlined in this publication to replace the OPS.
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| WTY026_TSB_R2 | Service bulletin | Mar 18, 2026 | 11030382 | PDF, 492 KB |
| WTY026_TSB_R1 | Service bulletin | Sep 16, 2022 | 10220349 | PDF, 477 KB |
| WTY026_TSB | Service bulletin | Jul 14, 2022 | 10216912 | PDF, 360 KB |
| WTY026_OWNR_YP | Service bulletin | Apr 13, 2022 | 10210271 | PDF, 117 KB |
| WTY026_OWNR_VG | Service bulletin | Apr 13, 2022 | 10210269 | PDF, 117 KB |
| WTY026_OWNR_XM | Service bulletin | Apr 7, 2022 | 10210270 | PDF, 117 KB |
| WTY026_QA | Service bulletin | Apr 6, 2022 | 10210268 | PDF, 113 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 222A03I0 | Oil Pressure Switch Leak Inspection | 0.3 hrs |
| 222A03R0 | — | 1.6 hrs |
| 222A03R1 | — | 1.7 hrs |
Read by machine from the document NHTSA serves (5 pages), read Sep 29, 2026. A part number is shown only where it matches Kia’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 7 model years this bulletin names have filed 2,819 complaints with NHTSA since 2015. 1,499 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2016 Kia Sorento, the 203 owners who gave an odometer reading for Engine reported it at a median of 85,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I was driving back home I had too work in rodeo california half the way everything was going great I had my 3 children with me my car didn't gave me any warning no check engine light.,no white smoke , I was passing the dodger stadium when suddenly my 2018 Sorento just shut down almost got hit I was about too enter the 710 and nooooo I…
2018 Kia Sorento · Engine · filed with NHTSA Aug 26, 2019 · ODI 11246317
I took the vehicle to get serviced to check the engine light coming on. The Kia dealership stated that the CVVT Assembly and Oil Control Valve had to be replaced. The entire engine would have to be replaced if there was engine damage. The check engine would turn off for a couple of days and then turn back on.
2018 Kia Sedona · Engine · filed with NHTSA Oct 3, 2024 · ODI 11617981
I am submitting this complaint regarding a 2016 Kia Cadenza (VIN: ) and Kia’s repeated failure to properly diagnose or repair a serious overheating/safety defect despite this being a well-documented and known issue affecting these engines.
2016 Kia Cadenza · Engine · filed with NHTSA Sep 4, 2025 · ODI 11684923
In depth: 2017 Kia Sedona engine problems → · 2016 Kia Sedona engine problems → · 2018 Kia Sorento engine problems → · 2017 Kia Sorento engine problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group18 other manufacturer communications filed against these Kia models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Kia list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SC365 | Emissions | Sep 10, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides the procedure to update the emissions‑related logic… |
| SC340 | Emissions | Apr 4, 2026 | VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSIONS: ECM LOGIC IMPROVEMENT (SC340 REVISION 5) - This bulletin has been revised… |
| CA2516 | Service bulletin | Apr 1, 2026 | TECHNICAL SERVICE BULLETIN: CUSTOMER ACTION: ECU LOGIC IMPROVEMENT FOR DTC P2B59F0 (CA2516) - This bulletin provides information to upgrade… |
| SC325 | Emissions | Feb 20, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: AEWP INSPECTION AND REPLACEMENT (SC325) - This bulletin has been revised t… |
| DC26 | Service campaign | Feb 10, 2026 | TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC26) - This bulletin has been revised to include a… |
| WTY039 | Warranty extension | Dec 18, 2025 | WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (WTY039) - This document is the announcement to the dealer Parts and Serv… |
| CA2508 | Service bulletin | Dec 8, 2025 | TECHNICAL SERVICE BULLETIN: ITM REPLACEMENT AND ECM & TCM LOGIC IMPROVEMENT (CA2508) - This bulletin provides information to replace the Int… |
| SC353 | Service campaign | Nov 13, 2025 | TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: ENGINE REPLACEMENT FOR COOLANT LEAK (SC353) - This bulletin provides information to… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kia, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia WTY026_QA a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the WTY026_QA repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Kia warranty extension on file lists the ones Kia has filed.
Which vehicles does WTY026_QA cover?
The manufacturer filed it against 7 model years: 2016 Kia Cadenza, 2018 Kia Sedona, 2017 Kia Sedona, 2016 Kia Sedona, 2018 Kia Sorento, 2017 Kia Sorento and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: Sorento (XMa): built 17 Dec 2012 – 11 Dec 2014; 2016-2018 Sorento (UMa): built 27 Oct 2014 – 1 Mar 2018; 2014-2016 Cadenza (VG): built 1 Feb 2013 – 7 Jan 2016 — the build date is on the certification label in the driver’s door jamb.