Kia bulletin PI2107
Kia filed this with NHTSA as a service bulletin dated Apr 8, 2026, received Dec 1, 2021, about the engine and engine cooling — 9 documents under this number: PI2107_OWNR_501, PI2107_OWNR_401, PI2107_OWNR_301, PI2107_OWNR_201 and more. It names 3 model years (2017–2019). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPRODUCT IMPROVEMENT CAMPAIGN: NU 2.0L GDI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2107) - 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. Do NOT install PI2107 KSDS ECU Logic Improvement on 20 17 20 19MY Soul (PS) w/Nu 2.0L GDI SULEV models. The KSDS will automatically be installed under SC251. Utilize Op Code 210149R1 for all SULEV models and proceed to SC251. All claims are subject to Warranty review and chargeback. This bulletin provides information related to a software update to the Engine Control Unit (ECU) to install the Knock Sensor Detection System (KSDS), in order to protect the engine from excessive connecting rod bearing damage. This update is for certain 2017-2019MY Soul (PS) vehicles equipped with Nu 2.0L GDI engines, produced from July 29, 2016 through December 21, 2018.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PI2107_OWNR_501 | Other | Apr 8, 2026 | 11031846 | not yet checked |
| PI2107_OWNR_401 | Other | Aug 12, 2025 | 11021858 | not yet checked |
| PI2107_OWNR_301 | Other | Dec 9, 2024 | 11011763 | not yet checked |
| PI2107_OWNR_201 | Service bulletin | Apr 9, 2024 | 10253006 | not yet checked |
| PI2107_TSB_R2 | Service bulletin | Jan 24, 2023 | 10230884 | not yet checked |
| PI2107_TSB_R1 | Service bulletin | Nov 22, 2021 | 10203665 | not yet checked |
| PI2107_OWNR | Service bulletin | Nov 16, 2021 | 10203662 | not yet checked |
| PI2107_TSB | Service bulletin | Nov 11, 2021 | 10203664 | not yet checked |
| PI2107_QA | Service bulletin | Nov 11, 2021 | 10203663 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia PI2107 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 PI2107 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.
Which vehicles does PI2107 cover?
The manufacturer filed it against 3 model years: 2019 Kia Soul, 2018 Kia Soul, 2017 Kia Soul. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.