U023CLost Communication With Image Processing Module C
- Generic OBD-II code · Network
- How the car detects it
- U023C covers image processing module C, which GM uses for the video processing module (VPM) of its surround vision system. Bulletin 21-NA-209 (2021 Cadillac Escalade and Escalade ESV with RPO UXP) describes a black radio screen showing a triangle and a struck-through camera, with U023C and B1A62 current in the VPM K157; VPM software is the cause, and the repair is pulling fuse F28 for a minute, then reprogramming the VPM. GM's 2025 OBD summary 25OBDG04B lets EOCM3 set U023C when the surround vision data or the auxiliary camera status messages are absent for more than 0.25 s; the EOCM then disables adaptive cruise, and as a Special Type C code it leaves the MIL off. U053D covers invalid data from C.
- What you may notice
- Black display with crossed-out camera symbol
- Surround view cameras unavailable
- Adaptive cruise control disabled
- Likely causes
- LikelyVideo processing module software (GM 21-NA-209)
- PossibleFuse or supply to the video processing module
- RareCamera or bus wiring to the module damaged
- Repair
- Hard · Usually a job for a workshop.Typical cost: €0 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.