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May 22, 2021 Service bulletin

Flash: Transmission Control Module (TCM) Updates

Ram technical service bulletin 2101821 for 2021 Ram 1500 and 2021 Jeep Gladiator.

Bulletin number
2101821
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. The customer may describe one or more of the following:During a 2 - 3 transmission upshift, the engine is hitting rev limit. Hesitation feel during a pedal tip in, while engine is warming up below 1 °C (30 °F) ambient temp.

Owners of these vehicles have filed 173 complaints in the transmission category.

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