# Service bulletin 0815623

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: 10241136
- Published by NHTSA: 2023\-08\-21
- Manufacturer's number: 0815623
- Manufacturer's date: 2023\-06\-29
- NHTSA component: ELECTRICAL SYSTEM; EQUIPMENT

## NHTSA's summary

Telematics Box Module \(TBM\) Over The Air Software Update to 4.36 Customers may experience one or more of the following: ? Uconnect Box requires service message at start up. ? Losing WiFi Hotspot streaming connection: internet data is not reliable. ? User is unable to setup the Charge schedule/Climate schedule events in Uconnect App \(TBM is sending failure message\). ? LED blinking on overhead console after ignition cycle. This bulletin provides information regarding the latest Firmware Over The Air \(FOTA\) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 4.27i \(WD\) and 4.29d \(RU\) to 4.36.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241136-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241136-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2023 CHRYSLER PACIFICA
- 2023 DODGE DURANGO
- 2023 DODGE DURANGO1

## Recalls for the same vehicles and component

- [26V296000](/recalls/nhtsa/26V296000.md), 2026-05-11: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:CRITICAL FASTENERS
- [25V877000](/recalls/nhtsa/25V877000.md), 2025-12-17: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
- [25V876000](/recalls/nhtsa/25V876000.md), 2025-12-17: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
- [25V388000](/recalls/nhtsa/25V388000.md), 2025-06-12: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
- [23V753000](/recalls/nhtsa/23V753000.md), 2023-11-09: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- [2023008](/recalls/tc/2023008.md), 2023-01-18: Electrical
- [23V010000](/recalls/nhtsa/23V010000.md), 2023-01-17: ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; HYBRID PROPULSION SYSTEM: INVERTER

## Other bulletins for the same vehicles and component

- [S2621000006](/bulletins/11038331.md), 2026-10-07, Service bulletin: ELECTRICAL SYSTEM. Note: Document released 10/2/2026. Multiple Warning Indicators On In The IPC. ESM \- PRNDL Flashing. And The Vehicle Will Not Shift Into Gear. The Wipers May Be On, With An Electric Parking Brake Unavailable.
- [08\-335\-26](/bulletins/11037464.md), 2026-09-23, Service bulletin: ELECTRICAL SYSTEM. Flash: Integrated Dual Charge Module \(IDCM\) Updates 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 \(DTCs\): ● B22A9\-87 \- ECU Internal Performance\-Missing Message. ● P0D21\-00 \- Battery Charger "A" Output Voltage Too Low. Customers may experience the following: ● Vehicle will not charge. This bulletin involves reprogramming the IDCM with the latest available software.
- [9100900](/bulletins/11037346.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [113803](/bulletins/11036166.md), 2026-08-13, Service bulletin: ENGINE; ELECTRICAL SYSTEM. HOSE AND TUBE \- HEATER SUPPLY AND RETURN
- [08\-294\-26](/bulletins/11035317.md), 2026-07-29, Service bulletin: ELECTRICAL SYSTEM. Telematics Box Module \(TBM\) Firmware Over The Air Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Codes \(DTCs\): ● B22A9\-00 \- ECU Internal Performance. ● B1560\-13 \- Cellular Antenna 1\-Circuit Open. ● B1561\-13 \- Cellular Antenna 2\-Circuit Open. ● B1562\-12 \- GPS Antenna\-Circuit Short To Battery. Customers may also comment on the following: ● "Uconnect Box Requires Service" message in the display screen module.
- [9100860](/bulletins/11035068.md), 2026-07-18, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [9100803 Rev 3](/bulletins/11035065.md), 2026-07-18, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Front Fog Lamp RT 1\) If the lamp contains moisture, do not replace it immediately. Turn the fog lamp on for one hour and inspect it afterward. Refer to 23\-008\-25 Rev.A. Exterior Front Lamps Condensation Clearing Procedure for details. 2\) If the fog lamp\(s\) do not light. Refer to Star Online Publication S2523000085 for details.
- [08\-268\-26](/bulletins/11035043.md), 2026-07-18, Service bulletin: ELECTRICAL SYSTEM. SXM Radio Doesn't Reflect Station Or Song Changing Customers may experience the following: SYMPTOM: ● When playing SXM stations the radio does not reflect the current station or recognize a song changing.
- [S2508000025 REV. B](/bulletins/11034926.md), 2026-07-08, Service bulletin: ELECTRICAL SYSTEM. Instrument Panel Cluster \(IPC\) and Radio Compass Display has Dashes \(\-\-\)
- [113153](/bulletins/11034915.md), 2026-07-08, Service bulletin: ELECTRICAL SYSTEM; ENGINE. THERMOSTAT – NONE.

JSON: [/v1/bulletins/10241136](/v1/bulletins/10241136)

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