WenmarOpen by Wenmar Pro

Service bulletin 0819023

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)
TypeService bulletin
NHTSA id10248960
Published by NHTSA2024-01-16
Manufacturer's number0819023
Manufacturer's date2023-11-30
NHTSA componentBACK OVER PREVENTION; ELECTRICAL SYSTEM; PARKING BRAKE; TRAILER HITCHES

NHTSA's summary

Radio Over the air update to R255.45.06 Customers may experience one or more of the following: No sound heard when Assist & SOS Call is established. Balance/Fade does not stay on when setup by one press. Wireless Phone interface freezes after User accepts incoming call when in a conference call. System switches to Wireless after key cycle, profile change, theme change, or theme mode change. After overnight sleep cycle defrost vent and dash vent are cut off due to duplicate front defrost. Surround sound image loads incorrectly when activating with Android Auto?. Radio plays different SXM® station than user selected. After a software update, previously added widgets to Shortcuts show up as "Couldn't add widget". SXM® presets grayed out, non-functional and audio intermittently fades in and out. Switch between the Cargo Camera screen and the AUX camera screen while switching between Night/Day modes, camera image may not be displayed. (Rearview camera functions normally). Deleting songs from Artist & Song Notifications, then Sports announcement displayed and "X" to cancel freezes screen. (Rearview camera functions normally). After a long sleep cycle, the left menu bar showing SXM® station categories (i.e. For You, Music, Sports, News, Presets) does not display all categories. When playing SXM®, after switching to a profile with a different Theme Mode, starting Bus Sleep cycle causes Presets Shown to change from 20 to 15. (Rearview camera functions normally). When call received from another vehicle, the voice of the receiving end is echoed back, the caller's vehicle has no echo issue. No response from Browse hard button when SXM® source is selected. Screen graphics/Theme - Shortcut widgets show up as "Loading", even after full sleep cycle. Android Auto? - Call duration displayed on status bar notification area is different than the actual duration. Widget view and Android Auto? screen are showing correct. Back Camera Icon is grayed out and it's not accessible f

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

Brakes, Driver assistance, Electrical system, Trailer hitch, Backup camera, Parking brake

Vehicles listed
RAM 15002023
RAM 25002023
RAM 35002023
RAM 45002023
RAM 55002023

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

Recalls for the same vehicles and component
23V6540002023-09-28. BACK OVER PREVENTION:DISPLAY FUNCTION
23V0590002023-02-09. BACK OVER PREVENTION:DISPLAY FUNCTION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1032892025-03-04. Service bulletin. CAMERA - REAR VIEW
S2208000045 REV.B2024-12-11. Service bulletin. Backup Camera Poor Image Quality Inspection
09001242024-03-18. Service bulletin. Cold Engine Ticking Noise The customer may describe a ticking noise from the exhaust manifold location(s) when cold. This bulletin involves replacing the exhaust manifolds.
08244232024-01-16. Service bulletin. Radio R255.45.06 USB Software Update The customer may experience one or more of the following: No sound heard when Assist & SOS Call is established. Balance/Fade does not stay on when setup by one press. Wireless Phone interface freezes after User accepts incoming call when in a conference call. System switches to Wireless after key cycle, profile change, theme change, or theme mode change. After overnight sleep cycle defrost vent and dash vent are cut off due to duplicate front defrost. Surround sound image loads incorrectly when activating with Android Auto?. Radio plays different SXM? station than user selected. After a software update, previously added widgets to Shortcuts show up as "Couldnt add widget". SXM? presets greyed out, non-functional and audio intermittently fades in and out. Switch between the Cargo Camera screen and the AUX camera screen while switching between Night/Day modes, camera image may not be displayed (Rearview camera functions normally). Deleting songs from Artist & Song Notifications, then Sports announcement displayed and 9X9 to cancel freezes screen (Rearview camera functions normally). After a long sleep cycle, the left menu bar showing SXM? station categories (i.e. For You, Music, Sports, News, Presets) does not display all categories. When playing SXM?, after switching to a profile with a different Theme Mode, starting Bus Sleep cycle causes Presets Shown to change from 20 to 15 (Rearview camera functions normally). When call received from another vehicle, the voice of the receiving end is echoed back, the callers vehicle has no echo issue. No response from Browse hard key when SXM? source is selected. Screen graphics/Theme - Shortcut widgets show up as "Loading", even after full sleep cycle. Android Auto? - Call duration displayed on status bar notification area is different than the actual duration. Widget view and Android Auto? screen are showing correct. Back Camera Icon is grayed out and its not accessible from
08237232024-01-16. Service bulletin. Transfer Case Shift Motor Wire Harness Connector Not Secured Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? U0418-00 - Implausible Data Received From Brake System Control Module. ? C1444-98 - T-Case Motor Overuse-Component or System Over Temperature. ? C00A8-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open. ? C00A7-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open. ? C149E-64 - Transfer Case Motor Position Sensor-Signal Plausibility Failure. ? C1423-64 - Transfer Case Internal Performance-Signal Plausibility Failure. ? C1406-13 - Transfer Case Brake Control-Circuit Open. ? C1477-4B - Transfer Case Clutch-Over Temperature. ? C140A-13 - Transfer Case Motor Control-Circuit Open. ? U041E-00 - Invalid Data Received From All Wheel Drive Control Module. ? U0422-00 - Implausible Data Received From Body Control Module. ? U0418-00 - Implausible Data Received From Brake System Control Module 1. ? U041E-00 - Invalid Data Received Form All Wheel Drive Control Module. ? U0403-00 - Implausible Data Received From T-Case. The customer may also comment on the following: ? 4WD Service light displayed in the Instrument Panel Cluster (IPC). This bulletin involves performing a push?pull?push test on the transfer case shift motor wire harness connector.
0805123A2024-01-02. Service bulletin. Incorrect Audio Configuration The customer may describe the following: ? Menu button on steering wheel control will activate Voice Recognition on the Head Unit (129 Cluster Vehicles Only). ? Suspension menu tile will be missing from vehicle settings list. ? Power side-step setting is missing from ?Safety & Driver Assistance? list. This bulletin involves performing a wiTECH routine.
08051232024-01-02. Service bulletin. Incorrect Audio Configuration The customer may describe the following: ? Menu button on steering wheel control will activate Voice Recognition on the Head Unit (129 Cluster Vehicles Only). ? Suspension menu tile will be missing from vehicle settings list. ? Power side-step setting is missing from ?Safety & Driver Assistance? list. This bulletin involves performing a wiTECH routine.
08044232024-01-02. Service bulletin. Radio Over The Air S24.13 and S24.18 Updating to S26.17 Software Version Customers may experience one or more of the following: ? **Blank screen (Rear view camera is not affected and will still function normally).** ? Battery drain. ? Radio resets (Rear view camera will still function normally). ? Wireless connectivity device disconnect. ? CarPlayT icon does not appear in device manager. ? Climate icon missing. ? Audio disruptions. ? SXMT inoperative. ? Audio muted. ? Passenger screen blank. ? Passenger screen apps missing. ? Missing profiles icon. ? Instrument Panel Cluster (IPC) displays incorrect audio source. ? Radio is slow to respond. ? Trailer tire pressure configurations deleted. ? Steering wheel controls skipping SXMT channels. ? Recent calls not displayed. ? Phone audio playing with ignition off. The following improvements are also included with this update: ? Apple CarPlayT and Android AutoT improvements. ? Voice Recognition (VR) command improvements. ? Uconnect phone improvements. ? FOTA improvements. ? Passenger screen camera app improvements. ? Icon size/layout improvements. 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 S24.13 or S24.18 to S26.17. NOTE: The national launch for the FOTA is expected to begin November 25, 2022.
S20250000012024-01-02. Service bulletin. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
S21080000152024-01-02. Service bulletin. Uconnect Box Require Service Message