Kia bulletin SC322
What it saysVOLUNTARY EMISSIONS SERVICE CAMPAIGN: HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322) - This bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as an emissions communication dated Jan 30, 2025, received Jan 16, 2025, about the electrical system — 8 documents under this number: TSB_SC322_R1, SC322_OWNR, SC322_DPSM, SC322_DP and 4 more. It names 3 model years (2023–2025). An emissions communication 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 EMISSIONS SERVICE CAMPAIGN: HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322) - 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 the procedure to update the software logic of the Hybrid Control Unit (HCU) system on certain 2023-2025MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 through July 25, 2024 and Sportage PHEV (NQ5 PHEV) vehicles produced from June 16, 2022 through July 24, 2024. The Hybrid Control Unit (HCU) in the subject vehicles may intermittently receive repeated “accelerate” CAN signals due to a signal processing error involving specific instrument clusters when customers “set” or “resume” cruise control. This concern can occur after the driver rapidly presses the “accelerate” rocker switch on the steering wheel. This does not affect the driver’s ability to pause, cancel or turn off the cruise control function. This condition may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect the public health and welfare from the dangers of air pollution.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_SC322_R1 | Emissions | Jan 30, 2025 | 11013361 | PDF, 416 KB |
| SC322_OWNR | Emissions | Jan 18, 2025 | 11012882 | PDF, 183 KB |
| SC322_DPSM | Emissions | Jan 16, 2025 | 11012879 | PDF, 113 KB |
| SC322_DP | Emissions | Jan 16, 2025 | 11012872 | PDF, 135 KB |
| SC322_TSB | Emissions | Jan 15, 2025 | 11012902 | PDF, 446 KB |
| SC322_STKR | Emissions | Jan 15, 2025 | 11012900 | PDF, 349 KB |
| SC322_QA | Emissions | Jan 15, 2025 | 11012899 | PDF, 113 KB |
| SC322_POC | Emissions | Jan 15, 2025 | 11012894 | PDF, 200 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 3 model years this bulletin names have filed 496 complaints with NHTSA since 2015. 205 of them name Electrical System, Forward Collision Avoidance — 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.
My 2025 Kia Sportage PHEV, brand-new with ~750 Miles, was in a low-speed collision with a parked vehicle when the Forward Collision-Avoidance Assist (FCA) system failed. I was pulling out of a parking spot from a complete stop. My foot was not on the accelerator; the vehicle moved forward under idle power as I prepared to brake.
2025 Kia Sportage · Forward Collision Avoidance · filed with NHTSA Jul 16, 2026 · ODI 11750845
While navigating the highly dangerous downhill descent of the Tejon Pass, LEBEC, CA , the vehicle experienced a complete throttle disengagement. The accelerator pedal became entirely unresponsive, leaving the vehicle without power on a steep, high-speed highway descent. I was traveling with my young daughter inside the vehicle.
2024 Kia Sportage · Fuel/Propulsion System · filed with NHTSA Jun 22, 2026 · ODI 11745626
First of all, what I am about to write put my husband and I in great danger. Driving on a two way, busy, rural highway, traveling approximately 65 mph, my Kia suddenly displayed a warning to pull over immediately and something about the battery. I barely had time to pull on to a narrow shoulder before it completely died.
2024 Kia Sportage · Electrical System · filed with NHTSA Oct 6, 2026 · ODI 11769453
In depth: 2023 Kia Sportage 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 group36 other manufacturer communications filed against the Kia Sportage 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_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… |
| 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… |
| CA2606 | Service bulletin | Jul 25, 2026 | TECHNICAL SERVICE BULLETIN: CUSTOMER ACTION: UPPER ACTIVE AIR FLAP DUCT ASSEMBLY REPLACEMENT (CA2606) - This bulletin provides information t… |
| SA644 | Service bulletin | Jul 2, 2026 | TECHNICAL SERVICE BULLETIN: ON-BOARD CHARGER INSPECTION AND REPLACMENT (SA644) - This bulletin provides information related to charging syst… |
| 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… |
| TSB_ELE394 | Service bulletin | Mar 26, 2026 | TECHNICAL SERVICE BULLETIN: AVN5.0W DTC P17A000 DAIGNOSTIC PROCEDURE - This bulletin provides information regarding a potential illuminated… |
| SA635 | Over-the-air update | Feb 10, 2026 | TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU OPERATIONSOFTWARE LOGIC IMPROVEMENT (SA635) - This bulletin has been revised to include addi… |
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 SC322 a recall?
No. A emissions 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 SC322 repair free?
A emissions communication 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 SC322 cover?
The manufacturer filed it against 3 model years: 2025 Kia Sportage, 2024 Kia Sportage, 2023 Kia Sportage. 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: 2023-2025MY Sportage HEV (NQ5 HEV): built 15 Feb 2022 – 25 Jul 2024; 2023-2025MY Sportage HEV (NQ5 HEV): built 16 Jun 2022 – 24 Jul 2024; Sportage HEV (NQ5 HEV): built 15 Feb 2022 – 25 Jul 2024 — the build date is on the certification label in the driver’s door jamb.