# Service bulletin 9100768

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: 11029689
- Published by NHTSA: 2026\-03\-05
- Manufacturer's number: 9100768
- Manufacturer's date: 2026\-02\-16
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

If the Power Liftgate \(PLG\) does not operate following battery drainage or when DTCs B2199\-16 or B21DD\-16 are active, perform the following steps: 1. Verify Battery Voltage: Ensure battery voltage is at nominal value \(minimum 12.5 V\). Charge the battery, if necessary before proceeding. 2. Confirm Low Voltage DTCs: After charging, verify that any low battery voltage DTCs are stored. 3. Check PLGM Proxi Alignment: 4. If PLGM is not aligned: \- Perform Proxi Alignment \- Reset the module \- Perform module recalibration. 5. If Proxi Is Correct: \- Reset the module. \- Perform module calibration. 6. Diagnose Active DTCs 7. Inspect wiring and related components associated with those DTCs. Repair as necessary and clear DTCs. 8. Module Replacement: If the module does not accept Proxi alignment, Module reset, or Calibration.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029689-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029689-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

B2199, B21DD

## Vehicles listed

- 2024 to 2026 JEEP GRAND WAGONEER
- 2024 to 2025 JEEP WAGONEER
- 2026 JEEP WAGONEER

## Other bulletins for the same vehicles and component

- [08\-374\-26](/bulletins/11038532.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. R1H U43.17 Software Update \- FOTA Customers may experience the following: SYMPTOM: ● CarPlay® application crash. ● Intermittent CarPlay® connection or extended connection time. ● Apple CarPlay® radio lagging, freezing or display glitches. ● Audio intermittently cuts out. ● Radio display blank. ● Intermittent Android Auto® / CarPlay® reconnection concern. ● Abnormal radio screen display when adjusting audio volume using the steering wheel controls after extended Bluetooth audio playback from an Android device. ● Unable to add or pair a device to the Head Unit \(HU\) while the vehicle is in motion. ● Bluetooth\-enabled devices cannot be discovered when attempting to pair a phone, even when the device is inside the vehicle. ● Turn Signal Activated Blind Spot View activates slower when the left turn signal is used compared to the right turn signal. ● Android Auto® launches automatically with a blank screen. ● Radio display goes blank while audio continues to play, and radio functions become inoperative. ● Vehicle Settings page becomes unresponsive or frozen. ● Android Auto® fails to connect. ● FamCAM softkey requires multiple presses before launching. ● Radio resets or reboots while driving. ● Flashing odometer. ● Selectable Tire Fill Assist application displays an illegible "Save as Preset" softkey. ● Surround View Camera \(SVC\) guidelines remain displayed after the guidelines setting has been turned OFF through the radio. In addition, the following software enhancement is included: ● Improved Wi\-Fi connectivity performance.
- [08\-374\-26](/bulletins/11038495.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. R1H U43.17 Software Update \- FOTA Customers may experience the following: SYMPTOM: ● CarPlay® application crash. ● Intermittent CarPlay® connection or extended connection time. ● Apple CarPlay® radio lagging, freezing or display glitches. ● Audio intermittently cuts out. ● Radio display blank. ● Intermittent Android Auto® / CarPlay® reconnection concern. ● Abnormal radio screen display when adjusting audio volume using the steering wheel controls after extended Bluetooth audio playback from an Android device. ● Unable to add or pair a device to the Head Unit \(HU\) while the vehicle is in motion. ● Bluetooth\-enabled devices cannot be discovered when attempting to pair a phone, even when the device is inside the vehicle. ● Turn Signal Activated Blind Spot View activates slower when the left turn signal is used compared to the right turn signal. ● Android Auto® launches automatically with a blank screen. ● Radio display goes blank while audio continues to play, and radio functions become inoperative. ● Vehicle Settings page becomes unresponsive or frozen. ● Android Auto® fails to connect. ● FamCAM softkey requires multiple presses before launching. ● Radio resets or reboots while driving. ● Flashing odometer. ● Selectable Tire Fill Assist application displays an illegible "Save as Preset" softkey. ● Surround View Camera \(SVC\) guidelines remain displayed after the guidelines setting has been turned OFF through the radio. In addition, the following software enhancement is included: ● Improved Wi\-Fi connectivity performance.
- [9100926](/bulletins/11038319.md), 2026-10-07, Service bulletin: ELECTRICAL SYSTEM. WIRELESS CHARGER Welcome GREEN LED not turning ON after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. Part numbers affected: 68630089AA 68630088AB 68649038AA Welcome Green LED turns on for 1 second after multiple IGN ON/OFF without sleep cycle and no phone on the charging pad. Intent of this condition is to notify the customer/dealership that the Wireless Charging Pad is ready to charge. Do not report as warranty claim, no impact to wireless charger functionality. Part numbers affected: 68630089AB 68630088AD 68649038AB Advice to dealership: Do no replace wireless charger PNs 68630089AA,68630088AB,68649038AA if no Welcome GREEN LED is seen after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. This feature is available in the successor NIKs, no impact to wireless charger functionality.
- [08\-341\-26](/bulletins/11037586.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM. Heads Up Display \(HUD\) Dimming Too Low Customers may experience one or more of the following: SYMPTOM: ● HUD is very dark and hardly viewable. ● HUD cannot be seen in daytime and very dim at night. This bulletin involves inspecting and possibly replacing the HUD module.
- [08\-221\-26 REV. B](/bulletins/11037582.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM. R1H Radio U41.10 Software Update \- Dealer Option Customers may experience one or more of the following: SYMPTOM: ● \*\*Speakers may emit a humming, screeching, buzzing, clicking, or bass noise \(not related to the amplifier\).\*\* ● FCW OFF light ON with no DTCs and can't turn off. ● Blank screen and then reboot every 2 minutes and 40 seconds. \(Rearview Camera Functions Normally\). ● Paddle shifters not working/no longer a setting. ● Autolocks not working. ● Auto headlights not working. ● AM station not working \(Appears some of the vehicles PROXI defaults to "1" which is absent for AM\). ● Album Art flickering issue. ● Blank screen and then reboot every 2 minutes and 40 seconds. ● CarPlay icon disappears from main screen while still active, leaving no navigation path back. ● Light/dark theme mismatch between Radio and temperature screens at key\-on Radio experiences lockups, resets, blank screens, and language issues after FOTA. ● Valet mode sends duplicate requests causing HU and vehicle state misalignment. ● Rear seat media page intermittently shows a blank screen. ● Unable to select or drag 'Pitch and Roll' widget on home screen. ● USB playback resumes incorrectly, skipping to next track after reconnect. ● Album art not displayed on HMI despite availability in media. ● Incorrect call timer displayed for conference calls. ● Call status remains 'active' on widget after call ends. ● Second call status not updated on home screen widget. ● Rear entertainment tab intermittently blank when switching apps. ● System crashes for 20 to 30 seconds after voice reply action. ● Media progress bar continues incorrectly after second call acceptance. ● CarPlay device fails to reconnect automatically or manually. ● Rear HVAC lock/unlock text missing while icon is present. ● Visual glitch observed on Front Passenger Display Module \(FPDM\) display. ● Surround view camera accessible while driving across apps \(unexpected behavior\). This bulletin involves inspecting and if required, updating the radio software level to U41.10. Depending on the radio's current software level the radio may need a one or two USB update
- [08\-069\-26 REV. B](/bulletins/11037461.md), 2026-09-23, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Flash: Power Liftgate Module \(PLGM\) Updates Customers may experience one or more of the following symptoms: SYMPTOM: ● \*\*Continuous chime is heard in the trunk area and does not stop with closing the liftgate, ignition shut off or CAN bus going to sleep. ● Vehicle may not start because the battery has become depleted due to: ○ Noise on the CAN bus. ○ Liftgate left open for more than few hours. ○ Continuous chime. ● Power Liftgate is not responding when first attempting to open after vehicle has sat for an extended period of time. ● Customer is unable to open the liftgate.\*\* ● Power Liftgate does not open using the front interior switch, key fob, Hands Free Entry \(HFE\) kick or exterior handle. The Instrument Panel Cluster \(IPC\) may display "Liftgate Open", a warning light may illuminate even though the liftgate appears fully closed, and an audible chime may be generated at speeds above 8 kph \(5 mph\). ● The power liftgate system chimes when trying to operate the liftgate using a HFE kick while no key is detected in the zone. ● After enabling or disabling the HFE kick or the Power Liftgate Alert feature, the PLGM does not save the changes. ● The power liftgate latch releases after pressing the exterior handle switch, but the liftgate does not power open. This bulletin involves inspecting and possibly reprogramming the PLGM with the latest available software.
- [OTHERDOC\_183](/bulletins/11037357.md), 2026-09-17, Other: ELECTRICAL SYSTEM. Radio Over The Air Update to U43.17 R1H Software Version \(FOTA\) Customers may experience one or more of the following: \- Navigation Stability \- Android Auto \& Carplay stability \& connectivity \- Power management app \- Distorted/glitchy display prior to start‑up animation \- Text appearance display \- Widget incorrect display \- Turn signal blind spot response timing \- Audio cut out \- Drive Modes selection \- Park assist Guidelines selction
- [S2623000052 REV. A](/bulletins/11037262.md), 2026-09-10, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM. Airbag Warning Light On or Intermittent. The Occupant Restraint Controller \(ORC\) May Have The Following DTCs \(Active/Stored\)
- [S2623000001 REV.A](/bulletins/11036771.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. Rotary Shifter Lights Blinking, Shifter Not Moving, Not Going Into Gear.
- [114265](/bulletins/11036757.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. TRANSMITTER KIT \& TRANSMITTER \- INTEGRATED KEY FOB

JSON: [/v1/bulletins/11029689](/v1/bulletins/11029689)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%209100768&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11029689&vehicle=Service%20bulletin%209100768)