NHTSA service bulletin

NHTSA Service Bulletin 11027857: 2025, 2026 Kia Ev6

Official manufacturer communication context for 2025, 2026 Kia Ev6, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11027857 summary graphic for 2025, 2026 Kia Ev6
11027857NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

TECHNICAL 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.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
KiaEv62025, 2026Ask for service records and run the exact VIN before purchase.
KiaEv92026Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 11027857?

TECHNICAL 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.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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