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July 1, 2021 Service bulletin

Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not...

Ram technical service bulletin S2121000010 for 2019-2021 Ram 2500, 2019-2021 Ram 3500 and 2019-2021 Ram 5500 and others.

Bulletin number
S2121000010
Component
Power train: axle assembly
Summary
Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage

Owners of these vehicles have filed 118 complaints in the transmission category.

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