Service Bulletin

2023 Kia Sportage Center Muffler Emissions Campaign SC239

Kia has issued a voluntary emissions service campaign, SC239, for certain 2023 Sportage vehicles. This campaign addresses center mufflers that may not meet U.S. EPA regulations, requiring inspection and potential replacement to ensure compliance.

ByAhmet Topcu — Founder & Editor-in-ChiefAutomated summary2023 Kia Sportage
2023 Kia Sportage — manufacturer_communication document image 1
Source: NHTSA manufacturer_communication 10219691
SC239NQ5aTheta 2.5L GDI2SECO2JASOcenter muffler assembly2023 Kia Sportage center mufflerKia Sportage emissions campaign28650 CW38028751 3S100

Symptoms

The primary concern addressed by this campaign is that the vehicle's center muffler may not meet U.S. EPA regulations. This could potentially cause the vehicle to release air pollutants exceeding Federal and California emissions standards. Owners may not experience any direct operational symptoms or warning lights related to this issue.

Diagnosis / Trigger Conditions

To determine if a vehicle is affected, technicians will perform a specific inspection. They will raise the vehicle and locate the center muffler. A number stamped on the muffler's surface will then be checked. The correct, compliant muffler is identified by the stamp "2SECO", while an incorrect, non-compliant muffler is identified by "2JASO". This inspection is crucial for identifying the specific 2023 Kia Sportage center muffler that needs attention.

Repair Procedure Summary

If the inspection reveals that the center muffler is the incorrect "2JASO" type, it will be replaced. The repair involves removing the existing center muffler assembly and installing a new one. It is critical that a new rear gasket is used during installation, as the old gasket must not be reused. The complete procedure is detailed in the "Engine Mechanical System → Intake and Exhaust System → Muffler → Removal and installation" section of the applicable Shop Manual on KGIS.

Required Tools or Parts

To perform the inspection and replacement, the following parts may be required:

  • Center Muffler Assembly: Part Number 28650 CW380
  • Gasket: Part Number 28751 3S100
  • Campaign Completion Label: Part Number UT160 SC239 (required for specific states)
  • Vehicle Emission Recall Proof of Correction Card: Part Number UT161 SC239 (required for specific states)

Important Warnings

Owners should be aware of several key points regarding this campaign:

  • "There is no charge to the vehicle owner for this repair."
  • "Under applicable law, you may not sell or otherwise deliver any affected vehicle until it has been repaired pursuant to the procedures set forth in this bulletin."
  • "DO NOT reuse the center muffler rear gasket, install a new part."
  • "DO NOT COMPLETE THE CARD UNLESS THE SERVICE CAMPAIGN WORK IS COMPLETED."
  • "Completion Label and Proof of Correction Card only required for vehicles registered in CA, CT, DE, MA, MD, ME, NJ, NY, OR, PA, RI, VT, and WA 'States' only."

Owner Action

Owners of affected 2023 Kia Sportage vehicles should contact their authorized Kia dealer to schedule an inspection. The inspection and any necessary replacement of the center muffler will be performed free of charge. Dealers will verify if the vehicle is included in the list of affected VINs using the WebDCS Warranty Coverage Inquiry screen. If the muffler is found to be incorrect, dealers will order the necessary part before the customer's return visit to ensure a smooth repair process for the 2023 Kia Sportage center muffler issue.

Source: NHTSA ID 10219691

Gallery

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Frequently Asked Questions

What is the SC239 campaign for the Kia Sportage?
The SC239 campaign is a voluntary emissions service campaign by Kia to inspect and, if necessary, replace the center muffler assembly on certain 2023 Sportage vehicles. This is to ensure the muffler meets U.S. EPA regulations.
Will I be charged for the 2023 Kia Sportage center muffler repair?
No, there is no charge to the vehicle owner for this repair. The inspection and any necessary replacement under campaign SC239 will be performed free of charge.
How do I know if my 2023 Kia Sportage is affected by the center muffler issue?
You should contact your authorized Kia dealer. They can check your vehicle's VIN against the list of affected vehicles for the SC239 campaign. The issue specifically targets vehicles with a center muffler identified as '2JASO' during inspection.
What happens if my vehicle has the incorrect 2JASO center muffler?
If your vehicle has the incorrect '2JASO' center muffler, the dealer will replace it with a compliant center muffler assembly (Part Number 28650 CW380) and a new gasket (Part Number 28751 3S100) as part of the SC239 campaign.

What Kia Sportage owners report

Counted from the records in our database across 32 model years.

4,907
Owner complaints
38
Recalls
679
Service bulletins
322
Crashes reported
208
Fires reported
274
Injuries reported

The 2023 model year

310 complaints, the 4th most of 32 model years on file. Owners reported 28 crashes, 1 fire and 18 injuries for this year, which also has 7 recalls on file.

Power Train and Engine And Engine Cooling, the system this article covers, accounts for 898 of 4,907 complaints (18%), including 41 for 2023.

Complaints by model year

Model years with the most complaints for the Kia Sportage
1998303
1999284
2000304
2001228
2002234
2011181
2012392
2013381
2017404
2023310

Most-reported systems

  1. Engine — 1,558
  2. Electrical System — 687
  3. Service Brakes — 613
  4. Power Train — 481
  5. Engine And Engine Cooling — 477

Latest recalls for the 2023 model year

  • 25V874000 — Trailer Hitches (Dec 2025)
  • 24V025000 — Structure (Jan 2024)
  • 23V531000 — Power Train (Jul 2023) — Park outside
All 2023 recalls →

Recent owner reports about power train and engine and engine cooling

The contact owns a 2023 Kia Sportage. The contact stated that while coming to a complete stop, the vehicle shifted into neutral and failed to properly shift into gear. The check engine warning light was illuminated.

2023 Kia Sportage owner, Oct 2026

When driving at speeds slightly above 50 mph between 1,700 and 1,900 RPM, maintaining light pressure on the accelerator pedal causes a noticeable physical vibration and shaking throughout both the pedal and the vehicle.

2023 Kia Sportage owner, Sep 2026
Read owner complaints →

Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.

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