Service bulletins for the 2021 Ram 4500
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.
445 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Parking brake are shown. Show all
| S1623000028 Rev. | 2023-02-13. Service bulletin. VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position. |
|---|---|
| S2108000170 | 2023-01-17. Service bulletin. PARKING BRAKE. Head unit button stuck DTC code B14DA-2A |
| S2108000170 | 2022-09-26. Service bulletin. PARKING BRAKE. Head unit button stuck DTC code B14DA-2A |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.