# Service bulletin S2108000236 REV.B

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: 11021846
- Published by NHTSA: 2025\-08\-13
- Manufacturer's number: S2108000236 REV.B
- Manufacturer's date: 2025\-08\-05
- NHTSA component: ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

## NHTSA's summary

Windshield HUD \(Head Up Display\) Display Features

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021846-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021846-9999.pdf)

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

## Components

Driver assistance, Electrical system, Adaptive cruise control

## Vehicles listed

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

## Other bulletins for the same vehicles and component

- [08\-190\-24 REV. A](/bulletins/11010228.md), 2024-11-07, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; UNKNOWN OR OTHER. "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"
- [101372](/bulletins/11010214.md), 2024-11-07, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; UNKNOWN OR OTHER. FCA Caribbean Warranty Operations Newsletter – Volume 10, Issue 10
- [101371](/bulletins/11010211.md), 2024-11-07, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: WARNINGS; UNKNOWN OR OTHER. Warranty Operations Newsletter – Volume 10, Issue 10
- [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."
- [08\-146\-24](/bulletins/11002755.md), 2024-07-02, Service bulletin: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; UNKNOWN OR OTHER; FORWARD COLLISION AVOIDANCE: WARNINGS. "Mid \- Range Radar Replacement Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● C00C4\-49 Rear Radar Module 'A' \- Internal Electronic Failure. Customers may also experience the following: ● Blind Spot Warning Mid Range Radar warning light on in instrument cluster. This bulletin involves replacing the rear Mid \- Range Radar Module."
- [S2121000011](/bulletins/10223274.md), 2022-10-17, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE. Long Crank With Diagnostic Trouble Code \(DTC\) U0104 ? Lost Communication With Cruise Control Module, Set.

JSON: [/v1/bulletins/11021846](/v1/bulletins/11021846)

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