# Service bulletin PS661

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: 10176070
- Published by NHTSA: 2020\-06\-03
- Manufacturer's number: PS661
- Manufacturer's date: 2020\-05\-08
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

PITSTOP: BLIND\-SPOT COLLISION WARNING \(BCW\) VARIANT CODING \- POSSIBLE C166A87 \- This Pitstop provides information regarding the Blind\-Spot Collision Warning \(BCW\) system setting a DTC C166A87 after replacing a BCW module on 2020\-2021 Soul \(SK3\) vehicles. After replacement, the BCW \(BSD\) variant coding needs to be performed using the KDS under S/W Management for the options equipped for that vehicle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176070-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176070-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

C166A

## Vehicles listed

- 2020 to 2021 KIA SOUL

## Recalls for the same vehicles and component

- [2022689](/recalls/tc/2022689.md), 2022-12-06: Electrical

## Other bulletins for the same vehicles and component

- [TSB\_CLI049\_R2](/bulletins/11036628.md), 2026-09-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR \- 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 partial repair of the Air Conditioning \(A/C\) compressor assembly on some 2011MY\~ Optima Hybrid \(TF HEV, JF HEV/PHEV\), 2015MY\~ Soul EV \(PS EV\), 2017MY\~ Niro \(DE HEV/PHEV/EV\), 2022MY\~ EV6 \(CV\), 2021MY\~ Sorento \(MQ4 HEV/PHEV\), 2023MY\~ Sportage \(NQ5 HEV/PHEV\), and 2023MY\~ Niro \(SG2 EV/HEV/PHEV\) vehicles.
- [TSB\_ENG263](/bulletins/11036452.md), 2026-08-28, Service bulletin: ENGINE; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: MISFIRE CONCERN DUE TO OVERRUNNING ALTERNATOR DECOUPLER \- This bulletin provides information to address unresolved misfire events on some 2020–2024MY Forte \(BDm\) produced from January 1, 2019 through September 30, 2024, and 2020–2022MY Soul \(SK3\) vehicles produced from November 1, 2018 through May 31, 2022 equipped with a Gamma 1.6L T‑GDI engine. In certain cases, misfire symptoms may persist after completing normal diagnostic procedures and replacing ignition‑related components \(spark plugs, ignition coils, and fuel injectors\). If misfire concerns remain after these repairs are performed, excessive torsional oscillation of the Overrunning Alternator Decoupler \(OAD\) pulley may be the contributing factor. This bulletin provides the procedure to replace the OAD pulley with the updated Overrunning Alternator Pulley \(OAP\) kit and associated damper components.
- [TSB\_ELE422](/bulletins/11033217.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM \- This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles \(2021\-2026MY All Models\).
- [SC199\_OWNR\_SK3\_3](/bulletins/11029039.md), 2026-02-25, Emissions: ELECTRICAL SYSTEM; POWER TRAIN. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION \(SC199 FL301\) \- This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control Module \(TCM\) and, if necessary, replace the Intelligent Variable Transmission \(IVT\) on certain 2020\-2021 MY Soul vehicles.
- [WTY041\_TSB\_R1](/bulletins/11023109.md), 2025-09-12, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION/REPLACEMENT \(WTY041\) \- 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 associated with the ‘Warranty Extension Program’ \(WTY041\) to inspect and, if necessary, replace the horn assembly on certain 2020\-2025MY Soul \(SK3\) vehicles produced from November 15, 2018 through August 13, 2024, The affected vehicles may experience a distorted or an inoperative horn sound caused by to corrosion and dust inside the horn assembly. The warranty coverage for repairs related to the horn assembly have been extended from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
- [SST082\_R1](/bulletins/11022844.md), 2025-09-05, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This bulletin provides instructions to perform an engine vibration inspection using the Kia Diagnostic System \(KDS\) tablet on certain Kia engine/model vehicles. The piston oil ring\(s\) in certain Kia engines may, over time, damage the surface of the engine cylinder wall. This may lead to increased oil consumption which will eventually result in abnormal noise from the engine and/or illumination of the oil pressure warning light. The applicable vehicle may or may not have the Piston Noise Sensing System \(PNSS\) software installed at the time of an engine vibration inspection. The PNSS software may detect engine noise triggering a DTC P132700.
- [TSB\_SST082](/bulletins/11017169.md), 2025-04-23, Service bulletin: ELECTRICAL SYSTEM; ENGINE. TECHNICAL SERVICE BULLETIN: PISTON NOISE SENSING SYSTEM \(PNSS\) INSPECTION \- This bulletin provides instructions to perform an engine vibration inspection using the Kia Diagnostic System \(KDS\) tablet on certain 2020 \- 2023 MY Kia Soul \(SK3\) 2021 \- 2023 MY Seltos \(SP2\) Kia vehicles equipped with 2.0L Nu MPI Engines. The piston oil ring\(s\) in certain Kia engines may, over time, damage the surface of the engine cylinder wall. This may lead to increased oil consumption which will eventually result in abnormal noise from the engine and/or illumination of the oil pressure warning light. The applicable vehicle may or may not have the Piston Noise Sensing System \(PNSS\) software installed at the time of an engine vibration inspection. The PNSS software may detect engine noise triggering a DTC P132700.
- [WTY041\_OWNR](/bulletins/11016481.md), 2025-04-04, Warranty extension: STRUCTURE:BODY; ELECTRICAL SYSTEM. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION \(WTY041\) \- This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly in certain 2020\-2025 MY Soul vehicles from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition.
- [TSB\_ELE378](/bulletins/11015973.md), 2025-03-26, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET \(SA611\) \- This bulletin outlines the procedure for resetting the modem in certain 2016\-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.
- [WTY041\_TSB](/bulletins/11015812.md), 2025-03-19, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: HORN ASSEMBLY INSPECTION/REPLACEMENT \(WTY041\) \- This bulletin provides information associated with the ‘Warranty Extension Program’ \(WTY041\) to inspect and, if necessary, replace the horn assembly on certain 2020\-2025MY Soul \(SK3\) vehicles produced from November 15, 2018 through August 13, 2024, The affected vehicles may experience a distorted or an inoperative horn sound caused by to corrosion and dust inside the horn assembly. The warranty coverage for repairs related to the horn assembly have been extended from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service.

JSON: [/v1/bulletins/10176070](/v1/bulletins/10176070)

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