Kia bulletin PS804
What it saysTECHNICAL OPERATIONS: NACS VEICLE CHARGING ERROR W/ DTC P343B16 (PS804) - This Pitstop provides information regarding an Electric Vehicle ‘EV’ charging error accompanied by DTC P343B16 on certain 2025-2026MY EV6 (CVa)… NHTSA’s full summary ↓
Kia filed this with NHTSA as a manufacturer communication dated Jan 26, 2026, received Jan 28, 2026, about the fuel/propulsion system. It names 3 model years (2025–2026). A manufacturer communication 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 communicationTECHNICAL OPERATIONS: NACS VEICLE CHARGING ERROR W/ DTC P343B16 (PS804) - This Pitstop provides information regarding an Electric Vehicle ‘EV’ charging error accompanied by DTC P343B16 on certain 2025-2026MY EV6 (CVa) and 2026MY EV9 (MVa) vehicles equipped with Combined Charging System Combo 1 (“CCS1,” also known as SAE J1772 Combo) charging ports. When using the wrong CCS1 to North American Charging Standard ‘NACS’ adapter, proper electrical connections are not made between the charger to adapter and adapter to vehicle charging port, resulting in a charging error which can cause DTC P343B16 to set. Non-OEM adapters may not set the DTC P343B16.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PS804 | Other | Jan 26, 2026 | 11027857 | not found |
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 3 model years this bulletin names have filed 83 complaints with NHTSA since 2015. 65 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.
I was driving down the freeway driving at the speed of traffic. My vehicle started beeping aggressively, a red indicator started flashing over the frunk area of the vehicle representation in the dash and my vehicle entered red turtle mode. This red turtle mode severely reduced the vehicle's speed and ability to maneuver on the freeway.
2026 Kia EV9 · Fuel/Propulsion System · filed with NHTSA Jul 4, 2026 · ODI 11748295
When shifting from reverse to drive there was a loud pop towards the back up the car. A check electrical system warning popped up, and then eventually a Check Power Supply stop now warning came up. The vehicle would not go above 26MPH and had to be stopped in a parking lot to be towed to the dealership.
2025 Kia EV6 · Electrical System · filed with NHTSA Mar 5, 2026 · ODI 11722278
I was sold a vehicle with a manufacturer defect. At purchase there was a loud wind noise coming from sunroof. I was promised a swift service department visit to realign the sunroof. At service visit ten days later the dealership replaced sunroof and threw electrical error codes B271100.
2026 Kia EV9 · Electrical System · filed with NHTSA Sep 10, 2026 · ODI 11763485
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 fuel/propulsion system
Source: same model, same component group4 other manufacturer communications filed against these Kia models under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| PS814 | Service bulletin | Sep 16, 2026 | This Pitstop provides information related to Electric Vehicle (EV) charging on 2024 - 2026MY EV9 (MV1, MV1a) vehicles. In some cases, high-v… |
| TSB_ELE392_R1 | Service bulletin | Mar 7, 2026 | TECHNICAL SERVICE BULLETIN: BSA REPLACEMENT GUIDANCE (ELE 392 REV 1) - This bulletin has been revised to include additional information. New… |
| TSB_ELE380 | Service bulletin | Apr 22, 2025 | TECHNICAL SERVICE BULLETIN: VEHICLE-TO-EVERYTHING (V2X) SOFTWARE UPGRADE - This bulletin provides information to install the Vehicle-to-Ever… |
| SC302Y | Service bulletin | Dec 5, 2024 | This bulletin was closed and superseded by SC327Y TSB. "This bulletin provides information related to the Technical Service Bulletin previou… |
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 PS804 a recall?
No. A manufacturer communication 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 PS804 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 PS804 cover?
The manufacturer filed it against 3 model years: 2026 Kia EV6, 2025 Kia EV6, 2026 Kia EV9. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.