Service bulletins for the 2015 Ram 1500
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.
590 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Air suspension are shown. Show all
| 08-051-16 | 2016-07-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. SUBJECT: Flash: Air Suspension Control Module (ASCM) This bulletin involves updating the ASCM with the latest available software. SYMPTOM/CONDITION: Customers may experience no ride height change with the vehicle in real cold conditions and in addition they may also have a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · C15A1-00 - Unable To Obtain Desired Ride Height. · C1562-98 - Ride Height Air Pump Control - Component Or System Over Temperature. · C1562-92 - Height Air Pump Control - Performance Or Incorrect Operation. · C159F-92 - Air Suspension Reverse Valve 1 Control - Performance Or Incorrect Operation. · C15A0-92 - Air Suspension Reverse Valve 2 Control - Performance Or Incorrect Operation. · C155E-92 - Height Pressure Vent Control - Performance Or Incorrect Operation • C15AA-00 - Air Leak During Vent. In addition, the customer may notice the following condition: • Vehicle does not change ride heights when selected in cold weather. |
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| 08-051-16 | 2016-07-07. Service bulletin. SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. SUBJECT: Flash: Air Suspension Control Module (ASCM) OVERVIEW: This bulletin involves updating the ASCM with the latest available software. SYMPTOM/CONDITION: Customers may experience no ride height change with the vehicle in real cold conditions and in addition they may also have a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · C15A1-00 - Unable To Obtain Desired Ride Height. · C1562-98 - Ride Height Air Pump Control - Component Or System Over Temperature. · C1562-92 - Height Air Pump Control - Performance Or Incorrect Operation. · C159F-92 - Air Suspension Reverse Valve 1 Control - Performance Or Incorrect Operation. · C15A0-92 - Air Suspension Reverse Valve 2 Control - Performance Or Incorrect Operation. · C155E-92 - Height Pressure Vent Control - Performance Or Incorrect Operation. • C15AA-00 - Air Leak During Vent. In addition, the customer may notice the following condition: • Vehicle does not change ride heights when selected in cold weather. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.