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Service bulletins for the 2016 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.

604 on file from NHTSA, as of 2026-10-19.

About P0456 on the 2016 Ram 1500: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P0456 are shown. Show all

Bulletins, newest first
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
18089192022-09-15. Service bulletin. ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
18-006-16 REV. A2022-08-08. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Flash: 3.6L and 5.7L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · **P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance. (5.7L only).** · P0456 - EVAP System Small Leak. · P1D73 - Active Grill Shutter (AGS) Performance. **In addition to the above DTCs, this software release also includes: · Improved shift quality during initial operations of a vehicle in cold ambient temperatures. (5.7L only). · Improved key-on engine-off oil pressure lamp behavior.**
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
18-006-16 REV. A2018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: 3.6L and 5.7L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · **P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance. (5.7L only).** · P0456 - EVAP System Small Leak. · P1D73 - Active Grill Shutter (AGS) Performance. **In addition to the above DTCs, this software release also includes: · Improved shift quality during initial operations of a vehicle in cold ambient temperatures. (5.7L only). · Improved key-on engine-off oil pressure lamp behavior.**
18-006-16 REV. B2017-11-03. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; ENGINE. Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: · **P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible.** · P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance (5.7L Engine). · P0456 - EVAP System Small Leak. · P1D73 - Active Grill Shutter (AGS) Performance. In addition to the above DTCs, this software release also includes: · Improved shift quality during initial operations of a vehicle in cold ambient temperatures (5.7L Engine). · Improved key-on engine-off oil pressure lamp behavior.
18-006-162017-10-21. Service bulletin. ELECTRICAL SYSTEM. Flash: 5.7L and 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · P0456 - EVAP System Small Leak. · P1D73 - Active Grill Shutter (AGS) Performance. · P2610 - PCM Internal Engine Off Timer Performance.
18-006-16REV.A2016-09-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. "FLASH: 3.6L AND 5.7L POWERTRAIN DIAGNOSTIC AND SYSTEM ENHANCEMENTS THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH THE LATEST AVAILABLE SOFTWARE. SOME CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION THE TECHNICIAN MAY FIND ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS): · **P0335 - CRANKSHAFT POSITION SENSOR CIRCUIT. · P2610 - PCM INTERNAL ENGINE OFF TIMER PERFORMANCE. (5.7L ONLY).** · P0456 - EVAP SYSTEM SMALL LEAK. · P1D73 - ACTIVE GRILL SHUTTER (AGS) PERFORMANCE. **IN ADDITION TO THE ABOVE DTCS, THIS SOFTWARE RELEASE ALSO INCLUDES: · IMPROVED SHIFT QUALITY DURING INITIAL OPERATIONS OF A VEHICLE IN COLD AMBIENT TEMPERATURES. (5.7L ONLY). · IMPROVED KEY-ON ENGINE-OFF OIL PRESSURE LAMP BEHAVIOR.**"

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.