# Service bulletin S2623000024

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11031339
- Published by NHTSA: 2026\-04\-15
- Manufacturer's number: S2623000024
- Manufacturer's date: 2026\-04\-10
- NHTSA component: LANE DEPARTURE: ASSIST

## NHTSA's summary

U0422\-00 Implausible Data From BCM Set In Central ADAS Decision Module \(CADM\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031339-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031339-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Driver assistance, Lane departure and lane keeping

## Vehicles listed

- 2021 to 2026 JEEP GRAND CHEROKEE
- 2021 to 2026 JEEP GRAND CHEROKEE 4XE
- 2021 to 2026 JEEP GRAND CHEROKEE L
- 2022 to 2026 JEEP GRAND WAGONEER
- 2022 to 2025 JEEP WAGONEER
- 2026 JEEP WAGONEER
- 2025 to 2026 RAM 1500

## Other bulletins for the same vehicles and component

- [111785](/bulletins/11033880.md), 2026-06-16, Service bulletin: LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING. MODULE \- CENTRAL ADAS DECISION and DRIVER MONITORING
- [08\-009\-26 REV. A](/bulletins/11033858.md), 2026-06-16, Service bulletin: LANE DEPARTURE: ASSIST. 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 Forward Facing Camera \(FFC\) Dynamic Service Alignment / Calibration procedure.
- [08\-166\-26](/bulletins/11031446.md), 2026-04-22, Service bulletin: LANE DEPARTURE: ASSIST. Rear Mid Range Radar \(MRR\) Bracket Revision Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● C00C4\-76 \- Rear Radar Module "A" \- Wrong Mounting Position. ● C00C5\-76 \- Rear Radar Module "B" \- Wrong Mounting Position. Customers may also comment on the following: ● Blind Spot Warning indicator displayed on the Instrument Panel Cluster \(IPC\). This bulletin involves replacing the right and left side rear MRR brackets.
- [08\-416\-25](/bulletins/11026793.md), 2025-12-23, Service bulletin: ELECTRICAL SYSTEM; LANE DEPARTURE: ASSIST. 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
- [S2523000054](/bulletins/11019450.md), 2025-06-11, Service bulletin: LANE DEPARTURE: ASSIST; STEERING; LANE DEPARTURE: WARNING. Intermittent Vibration Buzz Squeak Rattle \(BSR\) Shaking Felt In Steering Wheel.
- [08\-190\-24](/bulletins/11006628.md), 2024-08-26, Service bulletin: LANE DEPARTURE: ASSIST; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; UNKNOWN OR OTHER; LANE DEPARTURE: BLIND SPOT DETECTION. "Flash: Central ADAS Decision Module \(CADM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● C008E \- ECU Internal Performance. ● C2203\-00 \- Current VIN Missing/Mismatch. ● U015C\-00 \- Lost Communication With Automated Driving System Control Module ""A"". In addition, the customer may comment on one ore more of the following: ● Active Lane Management \(ALM\) settings do not save and turns ""Off"" between key\-cycles. ● Adaptive Cruise Control \(ACC\) settings do not save between key\-cycles. Defaults back to ""4 Bars"". ● ""Automatic Emergency Braking \(AEB\) Unavailable Service Required"" pop up intermittently on the Instrument Panel Cluster \(IPC\). ● ""Active Lane Management \(ALM\) Unavailable Service Required"" warning message appears on the IPC with no active fault codes. ● Blind Spot Monitoring \(BSM\) Warning Light LED ""flickering"" when activated. ● Traffic Sign Information \(TSI\) feature Indicator on the IPC ""blinking"" when driving past consecutive speed signs. This bulletin involves reprogramming of the CADM with the latest available software."
- [S238A000046](/bulletins/10248579.md), 2024-01-08, Service bulletin: LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE. Maps Over The Air \(MOTA\) Is Causing The Navigation App To Continuously Reboot Or Map loading Screen Shown
- [S2308000074](/bulletins/10244402.md), 2023-10-30, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:ADAS; LANE DEPARTURE: LANE KEEP: STEERING ASSIST. Central ADAS Decision Module \(CADM\), Advanced Driver Assist System \(ADAS\), Lane Assist Inoperative, Service Active Lane Management Message
- [S2208000061](/bulletins/10229025.md), 2023-01-09, Service bulletin: LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE. Navigation Crashes, Freezes, Or displays ?Loading? Message
- [S2208000158](/bulletins/10225997.md), 2022-11-07, Service bulletin: LANE DEPARTURE: WARNING; LANE DEPARTURE. Service Lane Departure Warning Message

JSON: [/v1/bulletins/11031339](/v1/bulletins/11031339)

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