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Service bulletins for the 2023 Ram 1500

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.

547 on file from NHTSA, as of 2026-10-19.

About C1444 on the 2023 Ram 1500: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: C1444 are shown. Show all

Bulletins, newest first
91004092024-09-06. Service bulletin. POWER TRAIN. TRANSFER CASE Before replacing a transfer case unit for fault codes C1444-98 and/or C1477-4B, be sure to reference TSB 21-048-24 for potential transfer case shift motor replacement
21-048-242024-09-04. Service bulletin. POWER TRAIN. "Transfer Case Active Shift Motor Replacement Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C1444-98 - T-Case Motor Overuse-Component Or System Over Temperature. ● C1477-4B - Transfer Case Clutch-Over Temperature. Customers may also comment on the following: ● ""4WD Overheated Temporarily Unavailable"" message displayed in the Instrument Panel Cluster (IPC). This bulletin involves replacing the transfer case shift motor."
08237232024-01-16. Service bulletin. WHEELS; AIR BAGS; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING; STRUCTURE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.