Service bulletins for the 2021 Ram 5500
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
369 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Axle are shown. Show all
| S2121000010 | 2022-10-17. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage |
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| S2121000010 | 2022-09-26. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.