Service bulletins for the 2025 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.
262 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| 103318 | 2025-02-06. Warranty extension. ENGINE; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Warranty Bulletin D-25-04 FFB Program - 6.7L Cummins Engine (Sales Codes ETM and ETN), Base Engine Comp, Electronic Comp, Cooling System Comp, Exhaust Gas Recirculation System, Fuel System and Aftertreatment System - Select 2025 2500/3500/4500/5500 Ram Pickup (DD/DJ/D2/DP) |
|---|---|
| 9003980 | 2025-01-29. Service bulletin. ELECTRICAL SYSTEM. SWITCH Headlamp Before replacing the Headlamp Switch for faulty dimmer operation. Please follow the next steps to corroborate if the Headlamp Switch is malfunctioning: 1.- Please disconnect and reconnect the headlamp Switch. And verify if the issue is corrected. 2.- Review the internal resistance of the switch: a.- For the Right Dimmer (IP) between Pins 6 & 3. The value should be around 5.74 KOhms, when in the lowest position to 311 ohms in the top position (Parade Detent). b.- For the left Dimmer (Ambient Light) between pins 8 & 3. The value should be around 14.52 KOhms, when in the lowest position to 182 ohms in the top position. If a problem is found in the resistor values. Please replace the Switch. |
| 100774 | 2024-11-01. Service bulletin. ELECTRICAL SYSTEM. SWITCH - HEADLAMP |
| 97802 | 2024-10-08. Service bulletin. ELECTRICAL SYSTEM. SWITCH - HEADLAMP |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.