Kia bulletin CS2306_TSB_R2
What it saysCUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2306) - This bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Jun 6, 2024, received Apr 22, 2023, about the electrical system — 4 documents under this number: CS2306_TSB_R3, CS2306_TSB_R1, CS2306_TSB and 1 more. It names 3 model years (2020–2022). 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: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2306) - 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 the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2020-2022MY Soul (SK3) vehicles produced from November 24, 2018 through December 11, 2021, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked with the use of the key fob.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CS2306_TSB_R3 | Service bulletin | Jun 6, 2024 | 11001597 | PDF, 956 KB |
| CS2306_TSB_R2 | Service bulletin | Jul 13, 2023 | 10239716 | PDF, 973 KB |
| CS2306_TSB_R1 | Service bulletin | May 24, 2023 | 10236652 | PDF, 971 KB |
| CS2306_TSB | Service bulletin | Apr 17, 2023 | 10234598 | PDF, 965 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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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 726 complaints with NHTSA since 2015. 55 of them name 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.
1. Car was getting great gas milage 33 in town and 41 on highway. Suddenly, could barely get 28 - 31 regardless of circumstance; then,.... 2, Car kept shutting off automatically when driving, to include when making a left hand turn that nearly got us broadsided when it stalled.
2022 Kia Soul · Electrical System · filed with NHTSA Jul 24, 2023 · ODI 11534201
Horn fails to operate. 2nd time for this car. 1st time was repaired by dealer as warranty. Now failed again. Car only has 14000 miles on it
2021 Kia Soul · Electrical System · filed with NHTSA Oct 24, 2022 · ODI 11490664
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 electrical system
Source: same model, same component group32 other manufacturer communications filed against the Kia Soul under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Kia list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_CLI049_R2 | Service bulletin | Aug 28, 2026 | TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. N… |
| TSB_ELE426 | Service bulletin | Aug 19, 2026 | TECHNICAL SERVICE BULLETIN: AVN GEN 5.0 WIDE SOFTWARE UPDATE - This bulletin provides information on the Audio Video Navigation (AVN) system… |
| CA2605 | Service bulletin | Jul 29, 2026 | TECHNICAL SERVICE BULLETIN: FRONT VIEW CAMERA REPLACEMENT (CA2605) - This bulletin provides information to replace the front view camera on… |
| TSB_ELE422 | Service bulletin | May 28, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE. KIA. COM - This bulletin provides information and service proc… |
| SC310Z | Service campaign | Mar 5, 2026 | TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: HIGH-VOLTAGE BPA REPLACEMENT (SC310Z REV 1) - This bulletin has been revised to includ… |
| SC267Z | Service bulletin | Mar 5, 2026 | TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: HIGH-VOLTAGE BATTERY PACK ASSEMBLY REPLACEMENT (SC267Z REV 2) - This bulletin has been… |
| CA2510 | Service bulletin | Nov 4, 2025 | TECHNICAL SERVICE BULLETIN: POWER WINDOW MAIN SWITCH REPLACEMENT (CA2510) - This bulletin provides information regarding an intermittent ope… |
| WTY041 | Warranty extension | Sep 11, 2025 | TECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION/REPLACEMENT (WTY041) - This bulletin has been revised to include additional information… |
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 CS2306_TSB_R2 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 CS2306_TSB_R2 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 CS2306_TSB_R2 cover?
The manufacturer filed it against 3 model years: 2022 Kia Soul, 2021 Kia Soul, 2020 Kia Soul. 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 24 Nov 2018 – 11 Dec 2021; Soul (SK3): built 24 Nov 2018 – 11 Dec 2021 — the build date is on the certification label in the driver’s door jamb.