Kia service campaign SC311
What it saysVOLUNTARY SERVICE CAMPAIGN: VCMC SOFTWARE LOGIC IMPROVEMENT (SC311) - This bulletin provides information to upgrade the software on the Vehicle Charge Management System (VCMS) in certain 2022-2024MY EV6, EV6 GT (CV)… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service campaign dated Jun 11, 2024, received May 29, 2024, about the electrical system — 6 documents under this number: SC313_DPSM, SC311_OWNR, SC311_TSB, SC311_QA and 2 more. It names 4 model years (2022–2024). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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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: VOLUNTARY SERVICE CAMPAIGN: VCMC SOFTWARE LOGIC IMPROVEMENT (SC311) - This bulletin provides information to upgrade the software on the Vehicle Charge Management System (VCMS) in certain 2022-2024MY EV6, EV6 GT (CV) vehicles produced from November 17, 2021 through December 27, 2023. While charging using a 240-V AC (“Level 2”) charger, the subject vehicles may experience an interrupted charging session or a lower charging speed due to a degraded electrical connection from exposure to a damaged charging cable connector.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SC313_DPSM | Service campaign | Jun 11, 2024 | 11001587 | PDF, 56 KB |
| SC311_OWNR | Service campaign | Jun 7, 2024 | 11001121 | PDF, 77 KB |
| SC311_TSB | Service campaign | Jun 5, 2024 | 11001585 | PDF, 246 KB |
| SC311_QA | Service campaign | May 28, 2024 | 11000538 | PDF, 61 KB |
| SC311_DPSM | Service campaign | May 28, 2024 | 11000537 | PDF, 37 KB |
| SC311_DP | Service campaign | May 28, 2024 | 11000536 | PDF, 56 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 4 model years this bulletin names have filed 722 complaints with NHTSA since 2015. 513 of them name Electrical System, Fuel/Propulsion 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 2022 Kia EV6, the 15 owners who gave an odometer reading for Electrical System reported it at a median of 16,030 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Vehicle does not reliably handle the 12V battery well. Many times, I see it sitting at 12.8 VDC when driving the vehicle. On a ICE vehicle, the charging voltage is close to 14V when running/driving. On 3 separate occasions, when I tried to "start" the EV6, the 12V battery was too dead to allow the car to be started. Basically stranded.
2023 Kia EV6 · Electrical System · filed with NHTSA Apr 3, 2024 · ODI 11581040
While operating and driving on a busy two lane roadway, about an hour in to a two hour trip, the vehicle displayed “check electrical system” message without warning, then quickly lost power, rendering the car only able to drive at 25 mph for a brief moment, and then, just as quickly, shut down completely and did not operate.
2022 Kia EV6 · Electrical System · filed with NHTSA Apr 21, 2023 · ODI 11518378
Car was in garage and tried to start it. Would not start, although the dash lit up briefly and it showed the main EV battery was at 49%. Message then appeared on dash stating that 12 volt battery was discharged. Car then went completely dead electrically. No electrical power of any kind.
2023 Kia EV6 · Electrical System · filed with NHTSA Apr 2, 2024 · ODI 11580731
In depth: 2024 Kia EV6 electrical problems → · 2023 Kia EV6 electrical problems → · 2022 Kia EV6 electrical problems → · 2024 Kia Telluride 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 group66 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 |
|---|---|---|---|
| TSB_ELE328_R1 | Service bulletin | Sep 16, 2026 | TECHNICAL SERVICE BULLETIN: CLUSTER SOFTWARE LOGIC IMPROVEMENT FOR LOWER THAN ACTUAL FUEL LEVEL INDICATION - This bulletin has been revised… |
| SA652/SA653/SA658 | Over-the-air update | Sep 16, 2026 | RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR RCM, UWB AND SBCM (SA652/SA653/SA658) - This Over-the-Air (OTA) software upd… |
| PI2606 | Other | Sep 4, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides information to upgrade the 12-volt battery… |
| PI2605 | Other | Sep 2, 2026 | TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: BMU LOGIC IMPROVEMENT (PI2605) - This bulletin provides information regarding a Ba… |
| OTA_ELE431_432_434_NOTES | Over-the-air update | Aug 29, 2026 | RELEASE NOTES: OVER-THE-AIR: SOFTWARE UPDATE FOR ROOF CONTROL MODULE (RCM), ULTRA-WIDEBAND (UWB) and SIDE BODY CONTROL MODULE (SBCM) - This… |
| 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… |
| SA658 | Service bulletin | Aug 21, 2026 | TECHNICAL SERVICE BULLETIN: SERVICE ACTION: SBCM SOFTWARE LOGIC IMPROVEMENT (SA658) - This bulletin provides information to upgrade the Side… |
| 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… |
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 SC311 a recall?
No. A service campaign 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 SC311 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does SC311 cover?
The manufacturer filed it against 4 model years: 2024 Kia EV6, 2023 Kia EV6, 2022 Kia EV6, 2024 Kia Telluride. 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: 2024 MY Telluride: built 8 Jan 2024 – 19 Feb 2024 — the build date is on the certification label in the driver’s door jamb.