# Service bulletin TSB\_ENG261

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11027858
- Published by NHTSA: 2026\-01\-28
- Manufacturer's number: TSB\_ENG261
- Manufacturer's date: 2026\-01\-28
- Campaign id or software version: DC26
- NHTSA component: ENGINE
- Manufacturer's system: ENG

## NHTSA's summary

TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU \(DC26\) \- This bulletin provides information related to extracting “in use monitoring performance tracking” emissions data from the Engine Control Unit \(ECU\) of certain vehicles sold in California. The California Air Resources Board \(CARB\) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027858-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027858-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2026 KIA CARNIVAL
- 2026 KIA CARNIVAL HYBRID
- 2026 KIA K4
- 2026 KIA K5
- 2026 KIA NIRO
- 2026 KIA NIRO PHEV
- 2026 KIA SELTOS
- 2026 KIA SORENTO
- 2026 KIA SORENTO HYBRID
- 2026 KIA SORENTO PHEV
- 2026 KIA SPORTAGE
- 2026 KIA SPORTAGE HYBRID
- 2026 KIA SPORTAGE PHEV

## Other bulletins for the same vehicles and component

- [TSB\_ENG265](/bulletins/11030380.md), 2026-04-01, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: THETA III 2.5 GDI ECM SW LOGIC IMPROVEMENT \(SA642\) \- This bulletin provides information to upgrade the Engine Control Module ‘ECM’ system software on certain 2026MY K5 \(DL3\) vehicles produced from December 03, 2025 through March 09, 2026 equipped with 2.5 GDI Theta III engines. The affected vehicles may exhibit an intermittent “low oil level” message illuminated on the instrument cluster. This issue may be present due to improper calibration logic of the oil level sensor value to detect a low oil level, even if the engine oil level is within the recommended factory specification.
- [TSB\_ENG261\_R1](/bulletins/11028738.md), 2026-02-11, Service campaign: ENGINE. TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU \(DC26\) \- 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 information related to extracting “in use monitoring performance tracking” emissions data from the Engine Control Unit \(ECU\) of certain vehicles sold in California. The California Air Resources Board \(CARB\) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting.

JSON: [/v1/bulletins/11027858](/v1/bulletins/11027858)

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