Service bulletin 0819823

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10243258
Published by NHTSA	2023-10-02
Manufacturer's number	0819823
Manufacturer's date	2023-08-17
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL

NHTSA's summary

Telematics Box Module (TBM) Firmware Over The Air (FOTA) Software Updating from 4.29C to 4.36 Customers may experience one or more of the following: ? Uconnect Box requires service message at start up. ? Losing Wi-Fi 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. These conditions do not affect the rear view camera display. 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 4.29c to 4.36. NOTE: The national launch for the FOTA is expected to begin September 08, 2023.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Software

Vehicles listed
CHRYSLER PACIFICA	2021, 2022
CHRYSLER VOYAGER	2021, 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
ReferenceY40	2024-03-18. Service bulletin. Customer Satisfaction Notification Y40 Control Module Software Updates
0821023	2023-10-02. Service bulletin. Radio USB Software Update to T25.50 The customer may describe one or more of the following: ? Amplifier module sets Diagnostic Trouble Code (DTC) U0485 - Implausible Data Received Set. ? Radio reset (Rearview camera functions normally). ? Voice Recognition (VR) inoperable. ? Wireless CarPlayTT inoperable. ? Audio sources inoperable. ? Display switches to Nav on VR prompt. ? Vehicle Positioning (Lat/Long) inoperable. ? Surround View Camera inoperable (Rearview camera functions normally). ? Unable to exit FamCam. ? Audio Repetition inoperable. ? Electric vehicle pages inoperable. ? Translated text is incorrect. ? Profile avatar changes in Valet Mode. ? Display does not return to idle mode after call. ? Dynamic rear view camera guidelines inoperable (Rearview camera functions normally). ? FOTA popup won?t dismiss. ? Ambient Lights Setting inoperable. ? Call Status on after all ended Favorites available in valet mode. ? SXMTT Favorites inoperable. ? Tutorial App inoperable. ? Audio Repetition stops during incoming calls. ? Unable to connect second device. ? Unable to exit Seat Comfort popup. ? Call does not end on the Instrument Panel Cluster (IPC). ? Seat Comfort graphic incorrect. ? Headphone button for front passenger display inoperable. ? Schedule update inoperable. ? USB media source inoperable on front passenger display. ? SXMTT inoperable. ? Wireless Android AutoT inoperable. ? Media sources duplicated. ? Audio unmuted at door close. ? Radio freeze (Rearview camera functions normally). ? Radio input lagging. ? Navigation active with no active route. ? Scheduled cabin cooling inoperable. ? Incorrect phone repetition displayed ? Navigation routing inoperable. ? Unable to exit Electric Vehicle Pages. ? Comfort softkeys incorrect. ? Comfort graphic overlap. ? Unable to change audio sources. ? Audio sources unavailable after profile switch. ? No incoming call popup on Uconnect
0819923	2023-10-02. Service bulletin. Radio Firmware Over The Air (FOTA) Update from R16.28 or R17.98 to R17.99 Software Version Customers may experience one or more of the following: ? Radio resets at times. ? Wireless disconnects. ? Intermittent display screen blank. ? Radio slow to respond and lockup. ? Radio inoperative intermittently. ? Apps not able to update. Additional enhancement included with this software update: ? CarPlayT and Android AutoT improvements and robustness added. 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 radio software will be updated from R16.28 and R17.98 (RU) and from R17.98 (WD) to R17.99. NOTE: The National campaign for this FOTA update launched September 8, 2023.
0819423	2023-10-02. Service bulletin. Radio Over The Air S26.17 and T25.48 Updating to T25.50 Software Version
0808223	2023-09-25. Service bulletin. Radio R160.00.21 USB Software Update
BulletinA	2023-07-31. Service bulletin. Customer Satisfaction Notification ZD7 - Radio Software Update
0812122REVA	2022-10-31. Service bulletin. Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash 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 radio software will be updated from S21D.5 and S23.13 to S24.18The national launch for the FOTA is expected to begin on:WS - May 24, 2022 WL - May 31, 2022 RU - S21D.5 to S24.18, June 06, 2022 RU - S23.13 to S24.18, May 21, 2022 Customers may experience one or more of the following: Navigation inoperative. Black or blank radio screen (Rear View Camera (RVC) will still function normally). Radio lockup (RVC will still function normally). Surround sound inoperative. Blu-ray DVD unavailable. Listen in/Mirror feature inoperative. PHEV radio does not turn off when opening door or after charging. No Verbal warnings on navigation. Audio Overlap between sources. Radio doesn?t recognize the vehicle is in park. No keyboard pop up, vehicles setting are hidden. Radio presets are not saving. Audio mute on calls (Phone, SOS and Ecall). Radio resets. Radio screen freezes. The rear view camera display, will work properly if the radio display screen freezes. Audio disruptions. Unable to connect compatible wireless connectivity device. Wireless connectivity disconnecting. Improvements are included with this update: Apple CarPlay® and Android Auto® improvements. Voice Recognition improvements. Uconnect Phone improvements.
0812122REVA	2022-10-31. Service bulletin. Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash 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 radio software will be updated from S21D.5 and S23.13 to S24.18The national launch for the FOTA is expected to begin on:WS - May 24, 2022 WL - May 31, 2022 RU - S21D.5 to S24.18, June 06, 2022 RU - S23.13 to S24.18, May 21, 2022 Customers may experience one or more of the following: Navigation inoperative. Black or blank radio screen (Rear View Camera (RVC) will still function normally). Radio lockup (RVC will still function normally). Surround sound inoperative. Blu-ray DVD unavailable. Listen in/Mirror feature inoperative. PHEV radio does not turn off when opening door or after charging. No Verbal warnings on navigation. Audio Overlap between sources. Radio doesn?t recognize the vehicle is in park. No keyboard pop up, vehicles setting are hidden. Radio presets are not saving. Audio mute on calls (Phone, SOS and Ecall). Radio resets. Radio screen freezes. The rear view camera display, will work properly if the radio display screen freezes. Audio disruptions. Unable to connect compatible wireless connectivity device. Wireless connectivity disconnecting. Improvements are included with this update: Apple CarPlay® and Android Auto® improvements. Voice Recognition improvements. Uconnect Phone improvements.
0814722	2022-10-31. Service bulletin. Flash: Radio Frequency Module (RFHM) Updates This bulletin involves reprogramming the RFHM with the latest available software. Customers may experience: Intermittent passive entry feature on the front doors are inoperative.
1805121	2022-10-17. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2-Sensor 1/2 Heater Circuit High. P0051 - O2-Sensor 2/1 Heater Circuit Low. P0052 - O2-Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2-Sensor 2/2 Heater Circuit High. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).