Kia bulletin TSB_ENG263
What it saysThis bulletin provides information to address unresolved misfire events on some 2020–2024MY Forte (BDm) produced from January 1, 2019 through September 30, 2024, and 2020–2022MY Soul (SK3) vehicles produced from… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Aug 5, 2026, received Aug 28, 2026, about the engine. It names 8 model years (2020–2024). 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 communicationWhat 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: MISFIRE CONCERN DUE TO OVERRUNNING ALTERNATOR DECOUPLER - This bulletin provides information to address unresolved misfire events on some 2020–2024MY Forte (BDm) produced from January 1, 2019 through September 30, 2024, and 2020–2022MY Soul (SK3) vehicles produced from November 1, 2018 through May 31, 2022 equipped with a Gamma 1.6L T‑GDI engine. In certain cases, misfire symptoms may persist after completing normal diagnostic procedures and replacing ignition‑related components (spark plugs, ignition coils, and fuel injectors). If misfire concerns remain after these repairs are performed, excessive torsional oscillation of the Overrunning Alternator Decoupler (OAD) pulley may be the contributing factor. This bulletin provides the procedure to replace the OAD pulley with the updated Overrunning Alternator Pulley (OAP) kit and associated damper components.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_ENG263 | Service bulletin | Aug 5, 2026 | 11036452 | PDF, 846 KB |
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 8 model years this bulletin names have filed 993 complaints with NHTSA since 2015. 684 of them name Engine, Electrical System — 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 2020 Kia Soul, the 94 owners who gave an odometer reading for Engine reported it at a median of 32,500 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Hi I had my Kia forte GT 2022 for 3 years and my engine light has been on for about 3 months now . I get a check up and an oil change regularly. It comes on and goes off . I told my mechanic and he said I might have to get a new transmission. I only had this brand new car for 3 years . Is there a defect in these Kia forte GT or a recall
2022 Kia Forte · Engine · filed with NHTSA Apr 7, 2025 · ODI 11653093
Shortly after purchase (8/2/23) I began noticing a persistent engine rattle between regular oil changes. This escalated to stalling issues, including on the highway and at intersections and around sharp curves. I brought the car in for service multiple times, and although a part was replaced, the symptoms soon returned.
2022 Kia Soul · Engine · filed with NHTSA Apr 9, 2025 · ODI 11653674
We were told it was the fuel pump. This car has put my son in danger twice. The car stalls out while driving, completely shuts down. He is traumatized due to this occurring in during traffic hour. The car dies and you can’t put it in neutral nor have the hazard light turn on. Complete shut down of car.
2022 Kia Forte · Electrical System · filed with NHTSA Sep 24, 2026 · ODI 11766604
In depth: 2022 Kia Soul engine problems → · 2021 Kia Soul engine problems → · 2020 Kia Soul 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 group14 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 |
|---|---|---|---|
| PI2107 | Service bulletin | Apr 8, 2026 | PRODUCT IMPROVEMENT CAMPAIGN: NU 2.0L GDI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2107) - This bulletin has been rev… |
| PI2106 | Service bulletin | Apr 1, 2026 | PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2106 FLIGHT 501) - This document is the owner renotification advising that Kia is cond… |
| PI2105 | Service bulletin | Mar 25, 2026 | PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105 FLIGHT 501) - This document is the owner renotification advising that Kia is cond… |
| SC176Y | Service bulletin | Mar 24, 2026 | TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: CATALYTIC CONVERTER REPLACEMENT AND ENGINE INSPECTION/REPLACEMENT (SC176Y) - This bull… |
| PI2002B | Service bulletin | Feb 24, 2026 | TSB - PRODUCT IMPROVEMENT CAMPAIGN (PI2002B) - NU 2.0L GDI - KNOCK SENSOR DETECTION SYSTEM (KSDS) LOGIC IMPROVEMENT - This bulletin provides… |
| SC336YZ | Service bulletin | Sep 4, 2025 | This bulletin provides information related to the Technical Service Bulletin previously published under SC336 titled “Engine Inspection/Repl… |
| TSB_ENG222_R8 | Service bulletin | Apr 3, 2025 | TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional in… |
| TSB_ENG222_R7 | Service bulletin | Feb 28, 2025 | TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional in… |
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 TSB_ENG263 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 TSB_ENG263 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 TSB_ENG263 cover?
The manufacturer filed it against 8 model years: 2024 Kia Forte, 2023 Kia Forte, 2022 Kia Forte, 2021 Kia Forte, 2020 Kia Forte, 2022 Kia Soul 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: 2020 –2022MY Soul (SK3): built 1 Nov 2018 – 31 May 2022; Forte (BDm): built 1 Jan 2019 – 30 Sep 2024; Soul (SK3): built 1 Nov 2018 – 31 May 2022 — the build date is on the certification label in the driver’s door jamb.