Kia warranty extension WTY031
What it saysThis bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as a warranty extension dated Jun 16, 2026, received May 4, 2023, about the exterior lighting — 6 documents under this number: WTY031_TSB_R2, WTY031_OWNR302, WTY031_OWNR301, WTY031_TSB_R1 and 2 more. It names 3 model years (2016–2018). A warranty extension is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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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: MULTIFUNCTION SWITCH REPAIR - 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 associated with the "Multifunction Switch Warranty Extension Program" (WTY031) to repair the multifunction switch knob on 2016-2018MY Sorento (UMa) vehicles, produced at Kia Georgia from October 27, 2014 through March 7, 2018, which may exhibit an intermittent headlamp flickering. The vehicle's warranty for this issue will be extended from 5 years/60,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. The concern does not need to be duplicated in order to follow the procedure outlined in this publication to replace the multifunction switch moving block and outer cover with the new improved part.
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 |
|---|---|---|---|---|
| WTY031_TSB_R2 | Warranty extension | Jun 16, 2026 | 11033996 | PDF, 838 KB |
| WTY031_OWNR302 | Warranty extension | Nov 9, 2024 | 11010704 | PDF, 140 KB |
| WTY031_OWNR301 | Warranty extension | Nov 9, 2024 | 11010703 | PDF, 140 KB |
| WTY031_TSB_R1 | Service bulletin | Dec 18, 2023 | 10248078 | not found |
| WTY031_TSB | Service bulletin | May 31, 2023 | 10237138 | PDF, 706 KB |
| WTY031_QA | Service bulletin | Apr 26, 2023 | 10235410 | PDF, 126 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| C5751 | Headlight Flickering Diagnosis Only (No additional parts and/or labor can be… | 0.2 hrs |
| 232A10I0 | Headlight Flickering Diagnosis Only (No additional parts and/or labor can be claimed) | 0.2 hrs |
| 232A10R0 | — | 0.3 hrs |
| 232A10I1 | (WTY031) Headlight Flickering Diagnosis Only (No additional parts and/or labor can… | 0.2 hrs |
| 232A10R1 | Multifunction Switch Repair | 0.3 hrs |
Read by machine from the document NHTSA serves (6 pages), read Sep 30, 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.
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 3 model years this bulletin names have filed 2,325 complaints with NHTSA since 2015. 400 of them name Electrical System, Exterior Lighting — 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 40 owners who gave an odometer reading for Exterior Lighting reported it at a median of 49,014 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The headlights have gone out on two separate occasions, while operating the vehicle at night with the headlight control in the auto mode. The headlights completely shutdown for approximately 2 to 3 seconds during this issue and automatically came back on. Both times this occurred at highway speeds with no other light source in the area.
2017 Kia Sorento · Exterior Lighting · filed with NHTSA Nov 27, 2017 · ODI 11048772
The contact owns a 2017 Kia Sorento. While driving approximately 50 MPH, the vehicle suddenly shut off. The vehicle operated normally after it was restarted. The vehicle was taken to lou sobh Kia (1135 bruford rd, cumming, ga 30041), but the failure was unable to be duplicated. The vehicle was not repaired.
2017 Kia Sorento · Electrical System · filed with NHTSA Jan 25, 2018 · ODI 11064925
In january 2019 a recall was done on my vehicle. A few days later, I was traveling out of state. I was on the interstate driving 70 miles per hour when the car lost power. Luckily there was no one behind me. I was told that the recall sent the car into limp mode because the engine was bad.
2018 Kia Sorento · Electrical System · filed with NHTSA Oct 23, 2019 · ODI 11270532
In depth: 2017 Kia Sorento electrical problems → · 2017 Kia Sorento exterior lighting problems → · 2016 Kia Sorento electrical problems → · 2016 Kia Sorento exterior lighting 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 exterior lighting
Source: same model, same component group1 other manufacturer communication filed against the Kia Sorento under the same component group (exterior lighting), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_BOD055_R1 | Service bulletin | Sep 13, 2021 | TECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - This bulletin has been revised to include additional inform… |
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 WTY031 a recall?
No. A warranty extension 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 WTY031 repair free?
A warranty extension is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does WTY031 cover?
The manufacturer filed it against 3 model years: 2018 Kia Sorento, 2017 Kia Sorento, 2016 Kia Sorento. 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 (UMa): built 27 Oct 2014 – 7 Mar 2018 — the build date is on the certification label in the driver’s door jamb.