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Service bulletins for the 2018 Kia Soul

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.

115 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
SC251_TSB2023-02-02. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: NU 2.OL GDI SULEV ECU EMISSIONS LOGIC IMPROVEMENT (SC251) - This bulletin provides the procedure to update the emissions-related logic of the Electronic Control Module (ECM) with an improved version on certain 2017-2019MY Soul (PS) vehicles equipped with the Nu 2.0L GDI SULEV engine, produced from July 29, 2016 through December 19, 2018. To ensure compliance with emissions regulations, apply the improved software update to the Engine system using the KDS ECU Upgrade function as described in this bulletin.
SC251_STKR2023-02-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. SC251_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION STICKER
SC251_QA2023-02-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign (SC251).
SC251_OWNR2023-02-02. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign on certain 2017-2019 MY Kia Soul vehicles equipped with Nu 2.0L GDI SULEV engines manufactured from July 29, 2016 through December 19, 2018 to improve the emission logic in the Electronic Control Module ('ECM') to ensure compliance with emissions regulations.
SC251_DPSM2023-02-02. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Voluntary Emissions Service Campaign on certain 2017-2019 MY Kia Soul vehicles equipped with Nu 2.0L GDI SULEV engines manufactured from July 29, 2016 through December 19, 2018 to improve the emission logic in the Electronic Control Module ('ECM') to ensure compliance with emissions regulations.
SC251_DP2023-02-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Emissions Service Campaign on certain 2017-2019 MY Kia Soul vehicles equipped with Nu 2.0L GDI SULEV engines manufactured from July 29, 2016 through December 19, 2018 to improve the emission logic in the Electronic Control Module ('ECM') to ensure compliance with emissions regulations.
TSBFUE0382018-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. TSB - CANISTER CLOSE VALVE INSPECTION AND AIR DRAIN CASE REPLACEMENT - This bulletin provides the procedure to inspect and if necessary, replace the Air Drain Case on some 2014-18MY Soul (PS), produced from July 21, 2013 through June 1, 2017, some 2012-2017MY Rio (UB), produced from June 21, 2011 through March 31, 2017, some 2014-2017MY Forte (YD) vehicles, produced from February 18, 2013 through March 2, 2017, and some 2017MY Forte (YDm) vehicles, produced from May 16, 2016 through March 6, 2017, which may experience an early shut-off during fuel refill and/or a malfunction indicator lamp (MIL) illumination with DTC(s) P0449 or P0451.
TSBENG178_R12018-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. TSB - DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC18) - This bulletin has been revised to include additional information. This bulletin provides information related to extracting ?in use performance tracking? emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.