DTC C1671-81: Signal LAT_ACCEL Or LONG_ACCEL Or YAW_RATE Or YL_PRES_STAT Not Valid: General Description
WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
Blind Spot Collision Warning (BCW) system is designed to assist the driver by monitoring blind spots on both sides of the vehicle to the rear and notifies the driver of vehicles in the detection area by illuminating the warning indicator.