Adjust the Ram TCM

Nov. 1, 2022

2014 Dodge RAM 3500 and 4500/5500 cab chassis owners may complain about a harsh 1-2 downshift if equipped with the AISIN AS69RC automatic transmission.

2014 Dodge RAM 3500 and 4500/5500 cab chassis owners may complain about a harsh 1-2 downshift if equipped with the AISIN AS69RC automatic transmission.

The simple fix involves reprogramming the TCM (transmission control module), recalibrating with release 14.03 or higher. This recalibration should eliminate the complaint.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of  specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

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