Service bulletin 0815823

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	10248958
Published by NHTSA	2024-01-16
Manufacturer's number	0815823
Manufacturer's date	2023-11-29
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Radio Over The Air Update to T25.48 Software Version Customers may experience one or more of the following: ? Unable to exit FamCam. ? Electric vehicle pages inoperable. ? Ambient Light Setting inoperable. ? Radio reset (Rear view camera functions normally). ? Voice Recognition (VR) inoperable. ? Scheduled cabin cooling inoperable. ? Unable to exit electric vehicle page. ? Audio sources inoperable. ? Wireless CarPlay® inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. 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 S26.17 to T25.48. NOTE: The National campaign for this FOTA update launched July 17, 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, Software

Vehicles listed
RAM 1500	2022
RAM 2500	2022
RAM 3500	2022
RAM 4500	2022
RAM 5500	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
0802824	2024-03-18. Service bulletin. Radio Over The Air Update from QR39.82F to QR40.12 Software Version Customer may experience one or more of the following: ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone when trying to connect to a device. 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 QR39.82F to QR40.12. NOTE: National launch for this FOTA update is expected to begin Feburary 19, 2024.
0802624	2024-03-18. Service bulletin. Radio Over The Air Update from QR39.5 to QR40.11 Software Version Customer may experience one or more of the following: ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone when trying to connect to a device. 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 QR39.5 to QR40.11. NOTE: National launch for this FOTA update is expected to begin Feburary 19, 2024.
0818523	2024-01-08. Service bulletin. Radio Over The Air Update From 136.10.04, 139.01.53 and 145.00.15 to R160 Software Version. Customer may experience one or more of the following: ? Media source changes to AM after the theme mode is changed (ex. headlights on - dark mode). ? Audio cuts out at volume levels 30 or above. ? System switches to Wireless after key cycle, profile change, or theme mode change. ? Wireless phone interface freezes after user accepts incoming call when in a conference call. ? Wi-Fi Hotspot gets disabled automatically when turning the vehicle ignition off for a long period. ? Loss of SXM/AM/FM presets. ? Blank Screen and Home Screen Loading (Rearview Camera not affected). ? Radio Reboot (Rearview Camera not affected) 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 136.10.04, 139.01.53 and 145.00.15 to R160. NOTE: Radio version 141.01.12 population not included in FOTA RSU due to active safety investigation and recall Z47 for RVC (Rear View Camera Blank) issue. NOTE: The National campaign for this FOTA update is estimated to be launched on April 17, 2023.
0821223	2023-12-18. Service bulletin. Radio Over The Air Update From S26.17 and T25.48 to T25.51 Software Version Customers may experience one or more of the following: ? Missing Side Camera and Trailer View SoftKeys. ? Ambient Light Setting inoperable. ? Radio reset (Rearview camera functions normally). ? Voice Recognition (VR) inoperable. ? Audio sources inoperable. ? Wireless CarPlay® inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. This bulletin supersedes Technical Service Bulletin (TSB) 08-212-23, date of issue September 01, 2023, which should be removed from your files. This is a complete revision and no asterisks have been used to highlight revisions.
0820923	2023-10-02. Service bulletin. Radio Over The Air Update from S24.6, S26.15 and T25.43 to T25.48 Software Version Customer may experience one or more of the following: ? Ambient Light Setting inoperable. ? Radio reset (Rearview camera functions normally). ? Voice Recognition (VR) inoperable. ? Audio sources inoperable. ? Wireless CarPlayT inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. 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 S24.6, S26.15 and T25.43 to T25.48. NOTE: The National campaign for this FOTA update is estimated to be launched on September 29, 2023.
0820323	2023-10-02. Service bulletin. Radio Firmware Over The Air (FOTA) Update to T25.48 Software Version The customer may experience one or more of the following: ? Ambient Light Setting inoperable. ? Radio reset (Rearview camera functions normally). ? Voice Recognition (VR) inoperable. ? Audio sources inoperable. ? Wireless CarPlayT inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. 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 S26.17 to T25.48. NOTE: The National campaign for this FOTA update launched July 17, 2023.
S238A000041	2023-10-02. Service bulletin. The Side Mirror Camera Option Is No Longer Available After FOTA Update To T25.48
0818123	2023-09-25. Service bulletin. Radio Over The Air Updating to QR40.12 Software Version ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone, when trying to connect to a device. 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 QR39.62 and QR39.57 to QR40.12. NOTE: National launch for this FOTA update is expected to begin August 16, 2023
0808223	2023-09-25. Service bulletin. Radio R160.00.21 USB Software Update
0813023	2023-07-31. Service bulletin. Telematics Box Module (TBM) Over The Air Software Update to 5.39.1 Customers may experience one or more of the following: ? Uconnect Box Message at Startup. ? Uconnect Box Error Or Requires Service Message. ? Connectivity: Uconnect Mobile App trunk status showing as closed when trunk is open. ? Connectivity: Diagnostic Trouble Codes (DTCs) for Electronic Control Modules (ECUs) won?t be shown to customer through the Vehicle Health alert (Mobile app or email). 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 5.13 to 5.25 to 5.39.1 (DS) and 5.25 to 5.39.1 (DJ, DD, D2, DP, DF). NOTE: The (DS) TBM software update will be a two-step update. NOTE: The national launch for the FOTA is expected to begin June 16, 2023.