Part of the generic C120D overview — this page covers the Kia meaning specifically.
OBD-II Diagnostic Trouble Code
C120D
Left warning indicator circuit open or short to battery
C
Chassis
brakes / steering
brakes / steering
1
Mfr
manufacturer code
manufacturer code
2
Chassis subsystem
0D
Left warning indicator circuit open or short to battery
Severity · general guide
High
Brakes/steering — inspect soon
Code type
Kia
System
Chassis
Model
EV6
Years
2022