Service bulletin 2101921

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	10223502
Published by NHTSA	2022-10-17
Manufacturer's number	2101921
Manufacturer's date	2021-05-27
NHTSA component	POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN; WHEELS; ELECTRICAL SYSTEM; STEERING; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

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.

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, Steering, Transmission and driveline, Wheels, Automatic transmission, Software, Transmission control module

Vehicles listed
RAM 1500	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
23V265000	2023-04-13. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

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
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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.
0802524	2024-03-18. Service bulletin. Radio Over The Air Updating to QR40.12 Software Version Customers 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 QR39.2 to QR40.11. NOTE: National launch for this FOTA update is expected to begin February 19, 2023.
ReferenceY40	2024-03-18. Service bulletin. Customer Satisfaction Notification Y40 Control Module Software Updates
0825223	2024-01-16. Service bulletin. Radio Over The Air Update to LR34.31 to LR35.41 Software Version Customers 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 LR34.31 to LR35.41. NOTE: The National launch for this FOTA update campaign is expected to begin December 04, 2023.
0824523	2024-01-16. Service bulletin. Radio Over The Air Update to Q339.3 to QR39.62 Software Version Customers 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 Q339.3 to QR39.62. NOTE: The National launch for this FOTA update campaign is expected to begin December 04, 2023.
1808623	2023-10-02. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software.
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
9100179	2023-08-21. Service bulletin. Transmission, Valve Body For 2021 DT with concerns related to DTC P0731 (Gear 1 Shift Incorrect ratio) contact FCA Redacted Content. If no response in 15 minutes, proceed with order.