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Service bulletin PS400

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10089987
Published by NHTSA2017-01-31
Manufacturer's numberPS400
Manufacturer's date2015-04-24
NHTSA componentVEHICLE SPEED CONTROL; ENGINE

NHTSA's summary

PITSTOP: SMART PEDAL FEATURE - THE “SMART PEDAL” IS AN INTEGRAL PART OF THE ENGINE MANAGEMENT SYSTEM (EMS) FUNCTIONALITY WHICH MONITORS AND PREVENTS THE SIMULTANEOUS ACTIVATION OF ACCELERATOR AND BRAKE PEDALS. WHEN ENGAGED, THE FEATURE REDUCES ENGINE POWER TO IDLE. MOST CUSTOMERS WILL NEVER NOTICE THE SMART PEDAL FEATURE WHEN ACTIVE, HOWEVER, CUSTOMERS WHO TEND TO REST THEIR FOOT ON THE BRAKE PEDAL WHILE DRIVING MIGHT DESCRIBE A HESITATION OR DELAY SYMPTOM AND NOT REALIZE THAT THE EMS ELECTRONIC CONTROL MODULE IS INTERVENING, AS DESIGNED.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Throttle and cruise control

Vehicles listed
KIA CADENZA2014, 2015, 2016
KIA FORTE2012, 2013, 2014, 2015, 2016
KIA FORTE KOUP2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
KIA K9002015, 2016
KIA OPTIMA2012, 2013, 2014, 2015, 2016
KIA OPTIMA HYBRID2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
KIA RIO2012, 2013, 2014, 2015, 2016
KIA SEDONA2012, 2013, 2014, 2015, 2016
KIA SORENTO2012, 2013, 2014, 2015
KIA SOUL2012, 2013, 2014, 2015
KIA SOUL EV2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
KIA SPORTAGE2012, 2013, 2014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20214242021-07-09. Engine
20212042021-04-06. Engine
20210402021-02-01. Engine
20210392021-02-01. Engine
20205972020-12-04. Engine
20V7500002020-12-02. ENGINE
20205352020-11-11. Engine
20191532019-03-21. Engine
20191432019-03-18. Engine
20191012019-02-28. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SC340_TSB_R52026-05-01. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSIONS: ECM LOGIC IMPROVEMENT (SC340 REVISION 5) - 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 to upgrade the Electronic Control Module ‘ECM’ system software for certain 2016-2020MY Optima, 2016-2020MY Sorento, 2017-2022MY Sportage vehicles equipped with 2.4L Theta II engines listed in the table below. Kia has become aware that certain 2016-2022MY vehicles equipped with 2.4L Theta II engines may have engine calibrations that were not optimized for emissions standards under certain specific conditions. These calibrations may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect your health and welfare from the dangers of air pollution.
SC340_OWNR_JF&JFA_1042026-04-01. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 104 ) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) for certain 2016-2020 MY Optima vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.
WTY026_TSB_R22026-04-01. Service bulletin. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: OIL PRESSURE SWITCH (OPS) REPLACEMENT (WTY026 REVISION 2) - 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 regarding the replacement of the Oil Pressure Switch associated with the ‘Warranty Extension Program’ (WTY026) on some 2014-2018MY vehicles listed in the table below, for repairs that may be necessary to address an Oil Pressure Switch leak in the eligible vehicles listed below from 10 years/100,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Oil Pressure Switch leaking condition at no cost to the customers during this extended warranty period.
SC176Y_TSB_R12026-03-31. Service bulletin. TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: CATALYTIC CONVERTER REPLACEMENT AND ENGINE INSPECTION/REPLACEMENT (SC176Y) - 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 catalytic converter and engine sub-assembly diagnosis and repair information on certain 2012-2016MY Soul (AM, PS) vehicles produced from July 8, 2011 through August 11, 2016, that previously had the recall campaign SC176 completed. The affected vehicles may exhibit catalyst system efficiency deterioration or a malfunction indicator lamp illumination with an active, history or pending P0420 with or without a P030X misfire DTC.
PI2105_OWNR_5012026-03-31. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105 FLIGHT 501) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Forte and Forte Koup vehicles equipped with 2.0-liter GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
PI2104_OWNR_5012026-03-31. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2104 FLIGHT 501) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2014-2016 MY Optima Hybrid vehicles equipped with 2.4-liter MPI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
SC340_TSB_R42026-03-13. Emissions. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSION SECM LOGIC IMPROVEMENT (SC340 REV 4) - 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 to upgrade the Electronic Control Module ‘ECM’ system software for certain 2016-2022MY vehicles equipped with 2.4L Theta II engines listed in the table below. Kia has become aware that certain 2016-2022MY vehicles equipped with 2.4L Theta II engines may have engine calibrations that were not optimized for emissions standards under certain specific conditions. These calibrations may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect your health and welfare from the dangers of air pollution.
PI2103_OWNR_5012026-03-12. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2103 FLIGHT #501) - This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update on 2011-2013 MY Kia Sportage vehicles equipped with 2.4-liter MPI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
PI2002B_OWNR_7012026-02-26. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2002B FL701) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2014-2016 MY Soul vehicles equipped with 2.0L Gasoline Direct Injection (“GDI”) engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of this computer software for the Engine Control Unit (“ECU”).
SC340_OWNR_JF1032026-01-03. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 103 / JF) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) for certain 2016-2020 MY Optima vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.