Service bulletin 1811722

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	10221490
Published by NHTSA	2022-09-26
Manufacturer's number	1811722
Manufacturer's date	2022-06-17
NHTSA component	POWER TRAIN

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following software enhancements are available:Engine REV stationary exhaust noise restrictions. Complaint of noticeable low RPM during a hard braking procedure.

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

Transmission and driveline

Vehicles listed
DODGE CHALLENGER	2018

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

Recalls for the same vehicles and component
2018422	2018-08-09. Powertrain
2018223	2018-05-01. Powertrain
18V280000	2018-05-01. POWER TRAIN:AUTOMATIC TRANSMISSION

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
S2621000004	2026-10-07. Service bulletin. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
S2621000003 REV.A	2026-03-18. Service bulletin. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
S2221000003	2024-01-08. Service bulletin. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
S2221000003	2023-10-30. Service bulletin. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
S2321000006	2023-08-21. Service bulletin. Service Transmission Message Illumination. Diagnostic Trouble Code (DTC) P0700-E4 ? Transmission Control System (MIL Request), Set.
S1808000152	2023-04-17. Service bulletin. CEL (Check Engine Lamp) Illuminates, Recent PCM Replace or Flash Update Performed, Diagnostic Trouble Codes (DTCs) P057B Brake Pedal Position Sensor Circuit Performance, P1572 Brake Pedal Stuck, C0042-54 Brake Pedal Missing Calibration
2102322	2023-01-09. Service bulletin. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. The following software enhancements are available: Engine REV stationary exhaust noise restrictions. Complaint of noticeable low RPM during a hard braking procedure.
S2221000003	2023-01-09. Service bulletin. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
9003704	2023-01-09. Service bulletin. Transmission Oil Pan, Heater (TMU), Tube or O-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips (snap ring) for the quick disconnect fittings are missing. (This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
0500122	2023-01-09. Service bulletin. Front Click Noise at Low Speed Turns This bulletin involves installing a friction disc kit on both front hub bearing surfaces between the hub and rotor. The customer may comment on the following:When making a sharp turn at low speed (parking lot) maneuvers, a click noise is heard. Most of the time the noise can be heard if the windows are open.