Ram Towing Requires an Upgrade

This bulletin applies to 2015-2016 RAM 1500, 2500, 3500 and 4500 trucks, and involves updating the integrated trailer brake module (ITBM) with the latest software. The customer may describe an intermittent condition where the trailer brakes feel as if they are not working for the first few brake applications.

Information courtesy of Mitchell 1

Mike Mavrigian

June 20, 2022

Using a scan tool, first verify that all systems are functioning as designed. Address any issues before the update. Reprogram the ITBM with the latest available software and clear any DTCs that may have set during the reprogramming.

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.

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.