Flash: 854RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control...
Ram technical service bulletin 21-025-15 REV-A for 2015 Ram 1500.
- Bulletin number
- 21-025-15 REV-A
- Component
- Power train: automatic transmission
- Summary
- Flash: 854RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following Symptom/Condition(s) and/or a Malfunction Indicator Lamp (MIL) due to an erroneous Diagnostic Trouble Code (DTC): ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory. ? Bump sensation felt during engine start/stop transition on light throttle acceleration (Engine Stop Start (ESS) equipped vehicles only). ? Less than desired overall downshifts during normal driving. ? Less than desired downshifts during passing maneuvers. ? Less than desired upshift quality in lower gears.
Owners of these vehicles have filed 227 complaints in the transmission category.
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