Kia bulletin CS2304B_OWNR2
What it saysCUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Jul 31, 2023, received Aug 2, 2023, about the electrical system. It names 5 model years (2016–2020). 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.
CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject of a break-in and theft attempt without the key. This software upgrade will be available to the customer free of charge for eighteen (18) months from the date of the original letter. When the software upgrade is complete, Kia will also provide the customer with window stickers that can be applied to the vehicle to discourage a break-in.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CS2304B_OWNR2 | Service bulletin | Jul 31, 2023 | 10240267 | PDF, 192 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 5 model years this bulletin names have filed 2,900 complaints with NHTSA since 2015. 322 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.
On the 2016 Kia Sorento, the 34 owners who gave an odometer reading for Electrical System reported it at a median of 53,494 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owned a 2020 Kia Sorento. The contact stated that while the vehicle was parked, her daughter saw smoke coming out of the vehicle. The contact stated that as she opened the vehicle, she saw flames on the front side of the vehicle. The contact was able to extinguish the fire with the assistance of the fire department.
2020 Kia Sorento · Electrical System · filed with NHTSA Oct 4, 2022 · ODI 11487905
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: 2019 Kia Sorento electrical problems → · 2017 Kia Sorento electrical problems → · 2016 Kia Sorento electrical 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 electrical system
Source: same model, same component group46 other manufacturer communications filed against the Kia Sorento 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 |
|---|---|---|---|
| SA656 | Service bulletin | Sep 28, 2026 | TECHNICAL SERVICE BULLETIN: SERVICE ACTION: FRONT VIEW CAMERA REPLACEMENT (SA656) - This bulletin provides information to replace the front… |
| SC330 | Service campaign | Sep 25, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: MULTI-FUNCTION SWITCH REPAIR (SC330) - This bulletin provides information to repair… |
| 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… |
| ELE413 | Over-the-air update | Jun 18, 2026 | RELEASE NOTES: OVER-THE-AIR: SOFWARE UPDATE FOR DATA CONNECTIVITY (ELE413) - This Over-the-Air (OTA) software update is designed to update t… |
| 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… |
| TSB_ELE417 | Service bulletin | Apr 14, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infot… |
| WTY042 | Warranty extension | Mar 26, 2026 | WARRANTY EXTENSION CAMPAIGN: DEALER PARTS & SERVICE MANAGER MEMO (WTY042) - This document is the announcement to the dealer Parts and Servic… |
| TSB_ELE394 | Service bulletin | Mar 26, 2026 | TECHNICAL SERVICE BULLETIN: AVN5.0W DTC P17A000 DAIGNOSTIC PROCEDURE - This bulletin provides information regarding a potential illuminated… |
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 CS2304B_OWNR2 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 CS2304B_OWNR2 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 CS2304B_OWNR2 cover?
The manufacturer filed it against 5 model years: 2020 Kia Sorento, 2019 Kia Sorento, 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.