C166A on the 2021 Kia Soul
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| PS661 | 2020-06-03. Service bulletin. 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. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.