# C2203 on the 2026 Jeep Grand Wagoneer

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.

## Bulletins for this model year that name C2203

- [11031668](https://open.wenmarpro.com/bulletins/11031668), 2026-04-29: Flash: Central ADAS Decision Module \(CADM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set at least one of the following Diagnostic Trouble Codes \(DTCs\): ● C2203\-00 \- Current VIN Missing/Mismatch. ● C008E\-00 \- ECU Internal Performance. \(With Environmental Data Decode Byte: APP\_FATAL\_ERROR\_APP\_CONFIGURATION\_ERROR\_FAULT.\) Customers may also comment on one or more of the following: ● The Instrument Panel Cluster \(IPC\) is displaying one or more of the following messages: ○ "ACC/FCW Unavailable Service Required". ○ "ACC/FCW Limited Functionality". ○ "Active Lane Management Limited Functionality." ○ "Active Lane Management Unavailable Service Required". ○ "Automatic Emergency Braking \(AEB\) Limited Service Required". ○ "AEB Unavailable Service Required". ○ "Blindspot Detection Unavailable Service Required" ○ "Blindspot Detection Limited Functionality" ● Customer states that the ADAS features are disabled This bulletin involves \*\*inspecting and possibly reprogramming\*\* the CADM with the latest available software and possibly performing a Long Range Camera Front \(LRCF\) calibration
- [11026793](https://open.wenmarpro.com/bulletins/11026793), 2025-12-23: Flash: Central ADAS Decision Module \(CADM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set at least one of the following Diagnostic Trouble Codes \(DTCs\): ● C2203\-00 \- Current VIN Missing/Mismatch. ● C008E\-00 \- ECU Internal Performance with Environmental Data Decode Byte: APP\_FATAL\_ERROR\_APP\_CONFIGURATION\_ERROR\_FAULT. Customers may also comment on one or more of the following: ● The Instrument Panel Cluster \(IPC\) is displaying one or more of the following messages: ○ "ACC/FCW Unavailable Service Required". ○ "ACC/FCW Limited Functionality". ○ "Active Lane Management Limited Functionality." ○ "Active Lane Management Unavailable Service Required". ○ "Automatic Emergency Braking \(AEB\) Limited Service Required". ○ "AEB Unavailable Service Required". ○ "Blindspot Detection Unavailable Service Required" ○ "Blindspot Detection Limited Functionality" ● Customer states that the ADAS features are disabled. This bulletin involves reprogramming of the CADM with the latest available software and possibly performing a Long Range Camera Front \(LRCF\) calibration