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Service bulletin S2118000001RevB

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 id10230318
Published by NHTSA2023-01-17
Manufacturer's numberS2118000001RevB
Manufacturer's date2022-07-27
NHTSA componentEXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION

NHTSA's summary

Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 Performance, Set.

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, Lighting, Backup camera

Trouble codes named

P0471

Vehicles listed
RAM 25002021, 2022
RAM 35002021, 2022
RAM 45002021, 2022
RAM 55002021, 2022

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

Recalls for the same vehicles and component
24V4360002024-06-13. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
23V6540002023-09-28. BACK OVER PREVENTION:DISPLAY FUNCTION
22V4070002022-06-09. 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
08203232024-01-16. Service bulletin. Radio Over The Air 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 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.
08212232024-01-08. Service bulletin. Radio Over The Air Update From S26.17 and T25.48 to T25.51 Software Version Customer 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 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 and T25.48 to T25.51. NOTE: The National campaign for this FOTA update is estimated to be launched on September 29, 2023.
08064232024-01-02. Service bulletin. Radio Over The Air Updating to QR40.12 Software Version Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 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 QR39.7 to QR40.12. NOTE: National launch for this FOTA update is expected to begin March 10, 2023. DISCUSSION: Vehicles sold in the U.S. and Canada can now receive software updates ?over-the-air?. Updates to software will occur in a phased roll-out. The software is updated through the built-in cellular modem in the radio.
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.
18018232024-01-02. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customer or technician may experience the following: ? **Power Take Off (PTO) disable to high engine oil temperature (DD and DP Cab Chassis only)**. ? Customer may complain of slow PTO idle ramp up. ? Message will appear ?Hot Oil? and exit high idle or PTO mode, when in high idle or PTO mode and running between 10-30 minutes (no load). ? High frequency exhaust noise at idle after cold start. This bulletin involves reprogramming the PCM with the latest available software.
18017232024-01-02. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customer or technician may experience the following: ? High frequency exhaust noise at idle after cold start. ? Power Take Off (PTO) disable to high engine oil temperature. ? Multiple Displacement System (MDS) transition causing a transmission clunk noise under light throttle when coasting in fourth gear. This bulletin involves reprogramming the PCM with the latest available software.
08040232024-01-02. Service bulletin. Radio Over The Air R141.01.12, 139.01.53, 136.10.04 to R145.00.15 Software Version Updates Customers may experience one or more of the following: ? **Intermittent Blue Screen (rear view camera still operable).** ? Radio wireless connectivity Inoperative. ? Screen Lockup, Slow Response (rear view camera still operable). ? Caller cannot hear the driver and/or driver cannot hear the caller. ? Cannot switch stations after a call, lockup due to the phone remaining on the call. ? Radio displays ?Code Error? or Lockup In Accessory Mode?. ? Display shows a black screen on start up (rear view camera still operable). ? SXMT presets are lost for all profiles. ? SXMT has no volume and stuck on channel. ? Radio does not allow BUS to go to sleep. ? AndroidT auto not connecting on vehicle start up. ? When radio is in light theme mode and in audio Balance/Fade menu, it is hard to see the position icon. Black on black coloring. ? Black out on SXMT after switching Profiles. ? During connecting phone radio does not handle audio source correctly when making a phone call. ? Climate buttons out of place and move to settle in correct location. ? In the shortcuts menu pulled down from the status bar, the right side arrow is highlighted as if it can be selected. ? Presets with 9Hold to Save99 numbered above 9 have text cutoff. ? Profile edit not allowed while in movement for 9Memory Seat9. ? While switching between Driver Profiles, Phone Notification Volume pops up. ? Inconsistently SiriT assistance. ? Compass does not work. ? Wireless device echo. ? Satellite antenna error message. ? Display flickers before SXMT background displayed. ? Radio 9home9 screen background is theme 1 background when Theme 2, theme 3 or theme 4 is selected. ? Mirror dimmer button when added in shortcut widget does not work while driving. ? Missing one shortcut in the custom shortcuts widget. ? Cluster does not display incoming phone call popup when in o
S21080000152024-01-02. Service bulletin. Uconnect Box Require Service Message