Kia bulletin CS2310_TSB_R1
What it saysCustomer satisfaction: KIA genuine remote start control module upgrade for anti-theft logic compatibility (CS2310) - this bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Aug 7, 2023, received Aug 2, 2023, about the electrical system — 2 documents under this number: CS2310_TSB and 1 more. It names 38 model years (2016–2022). 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: KIA GENUINE REMOTE START CONTROL MODULE UPGRADE FOR ANTI-THEFT LOGIC COMPATIBILITY (CS2310) - 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 to update the software logic in the Kia Genuine Remote Start Control Module on certain 2012-2022MY model vehicles listed on page 7. Vehicles equipped with a Kia Genuine Remote Start feature and have had the Anti-Theft software logic (CS230*) applied to the Integrated Body Control Unit (IBU) or Body Control Module (BCM) may experience five (5) inadvertent honks after starting the vehicle with the remote start feature.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CS2310_TSB_R1 | Service bulletin | Aug 7, 2023 | 10240563 | PDF, 551 KB |
| CS2310_TSB | Service bulletin | Jul 6, 2023 | 10239108 | PDF, 506 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| CS3010 | — | 0.5 hrs |
Read by machine from the document NHTSA serves (9 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. Listings and prices on eBay Motors are the seller’s.
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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.
Find the control module for the 2022 Forte →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 38 model years this bulletin names have filed 8,461 complaints with NHTSA since 2015. 1,114 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 Optima, the 37 owners who gave an odometer reading for Electrical System reported it at a median of 66,500 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I've had this car going on three years sometimes not all the time I will go to start it and it will barely start so I took it to the dealership three times when I got my oil change and they checked the battery but they're saying the battery is good and the starting system the car will just be sitting in my garage and I try to start it it…
2019 Kia Optima · Electrical System · filed with NHTSA May 9, 2021 · ODI 11415708
The contact owns a 2020 Kia Sedona. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power with several unknown warning lights illuminated. The vehicle was towed to the dealer, where the vehicle was diagnosed with battery failure. The contact was informed that the battery needed to be replaced.
2020 Kia Sedona · Electrical System · filed with NHTSA Jul 25, 2025 · ODI 11676231
The contact owns a 2018 Kia Optima PHEV. The contact's daughter stated that while driving at an undisclosed speed, the high systems temperature switching to hybrid mode message was displayed. The contact stated that there was a two-hour delay for a full charge. The vehicle was taken to the dealer but was not diagnosed or repaired.
2018 Kia Optima · Electrical System · filed with NHTSA Jul 21, 2025 · ODI 11675096
In depth: 2016 Kia Optima electrical problems → · 2021 Kia Sorento electrical problems → · 2019 Kia Sorento electrical problems → · 2017 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 group118 other manufacturer communications filed against these Kia models 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… |
| SC367 | Emissions | Sep 11, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides information to upgrade the Electronic Control Modul… |
| SC365 | Emissions | Sep 10, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides the procedure to update the emissions‑related logic… |
| PS813 | Service bulletin | Sep 4, 2026 | This Pitstop provides information related to the smart key fob programming procedure on certain 2027MY~ Seltos (SP3) vehicles. |
| 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… |
| TSB_ENG263 | Service bulletin | Aug 5, 2026 | TECHNICAL SERVICE BULLETIN: MISFIRE CONCERN DUE TO OVERRUNNING ALTERNATOR DECOUPLER - This bulletin provides information to address unresolv… |
| 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… |
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 CS2310_TSB_R1 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 CS2310_TSB_R1 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 CS2310_TSB_R1 cover?
The manufacturer filed it against 38 model years: 2022 Kia Forte, 2021 Kia Forte, 2020 Kia Forte, 2019 Kia Forte, 2022 Kia K5, 2021 Kia K5 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: 20-22MY Soul (SK3): built 24 Nov 2018 – 11 Dec 2021; 11-15MY Optima (QF, TF): built 12 Aug 2011 – 2 Oct 2015; 16-18MY Optima (JF): built 2 Feb 2016 – 5 Apr 2018 — the build date is on the certification label in the driver’s door jamb.