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Home >> Kia >> 2020 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different car >> Section 554 (Double Clutch Transmission Diagnosis - 1.6L (3 Of 4)) >> DTC P0921-77: Gear 1 System Referencing Failure >> DTC Information >> DTC Description

DTC Description

WARNING: This page is about a different car, the 2022 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.

TCM set this code when gear actuator1 is not perceived reference position.