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Service bulletin 1900121

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 id10223338
Published by NHTSA2022-10-17
Manufacturer's number1900121
Manufacturer's date2021-05-11
NHTSA componentSTEERING

NHTSA's summary

Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice there is a noise coming from the tailshaft of the steering column while turning.

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

Steering

Vehicles listed
RAM 15002020, 2021

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

Recalls for the same vehicles and component
25V7650002025-11-06. STEERING:STEERING CONTROL MODULE; AIR BAGS:FRONTAL
21V9180002021-11-23. STEERING:STEERING CONTROL MODULE; 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
S25190000092025-10-02. Service bulletin. Diagnostic Trouble Code (DTC) C221F-00, C2223-00, C221C-00, C0051-54 Present After Electric Power Steering (EPS) Replacement.
S25190000062025-07-23. Service bulletin. Steering Repair Information Involving Toe Angle. Tie Rod And Or Electric Power Steering (EPS) Units.
S23190000082024-01-08. Service bulletin. Clicking Noise From Steering Column While Turning Steering Wheel.
S23190000082023-10-30. Service bulletin. Clicking Noise From Steering Column While Turning Steering Wheel.
S23080000422023-10-02. Service bulletin. EPS And Other CAN C Modules Offline, U0001-00, U0002-00, and U0131-00 Can C Bus Diagnostic Trouble Codes (DTCs).
08-008-232023-02-13. Service bulletin. UAS and UCS Radio Enhancements Customers may experience one or more of the following: **Wi-Fi hotspot connection failure. Speaker popping, crackle noise during Voice Recognition (VR) response and navigation guidance. Mobile Station Integrated Services Digital Network (MSISDN) missing from radio, no connected services working.** Wireless connectivity pairing and/or connection issues. Lost radio presets. Radio channels change by itself. SXMT icon inoperative. SXMT favorite song not displaying/playing. High pitch squeal, pop or hum noise from speakers. Anti-theft code request message. Lines appear across screen. Radio will not switch modes between AM, FM, SAT or Media. Performance control home screen shows ?Norm? mode for engine/transmission even when the vehicle is in ?Drag? mode (LA, LD, LX only). Can not change the time on the clock (LA, LD and LX only). USB hub inoperable (D-Trucks only). Backup camera gridlines missing (D-Trucks only). Device not supported message (D-Trucks only). Remote app inoperative (D-Trucks only). Unable to adjust volume (D-Trucks only). Heated steering wheel inoperable (D-Trucks only). In addition, the following enhancement are included in this update: CarplayT connectivity improvements. Improvement to wireless connectivity phone pairing. Improved sound quality when using a wireless connectivity phone. **This bulletin involves inspecting and if required, updating the radio software level to 40.1. Depending on the radio?s current software level the radio may need a one or two USB update.**
21020212023-01-17. Service bulletin. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the follwing:Unable to set desired gear manually from the steering wheel controls.
21019212023-01-17. Service bulletin. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the follwing:Unable to set desired gear manually from the steering wheel controls.
19001212023-01-17. Service bulletin. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice there is a noise coming from the tailshaft of the steering column while turning.
S21080000072023-01-17. Service bulletin. Increase In Steering Effort After Recent Repairs, DTC?s B210B-00 System Voltage High Or C2129-17 Battery Voltage Circuit Voltage Above Threshold, No Crank, No Start, Stop Start Inoperative