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Service bulletins for the 2013 Dodge Grand Caravan

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.

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

About P0456 on the 2013 Dodge Grand Caravan: what the code means, and the bulletins and recalls about the same components.

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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
18-099-152019-05-20. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; STRUCTURE. Flash: Powertrain Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of 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) set in the PCM: ? U0140 - Lost Communication With Body Control Module (BCM) (RT Vehicles Only). ? P0456 - Evap System Small Leak. Transmission Enhancements are also included with this software release. These changes include the following: ? Garage shift engagements into D may be harsh at times after shutdowns of 10-30 minute duration. ? 5/6 Upshift timing adjusted to improve top speed performance (markets where speeds in excess of 161 kph (100 mph) are permitted). NOTE: The Transmission Enhancements only apply to vehicles equipped with the 3.6L engine (sales code ERB).
18-050-162018-06-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of 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) set in the PCM: **JC Vehicles 3.6L: · P0335 - Crankshaft Position Sensor Circuit. P2610 - PCM Internal Engine Off Timer Performance. · U0140 - Lost Communication With Body Control Module (BCM). · P0456 - Evap System Small Leak.** JC Vehicles 2.4L: · P0456 - Evap System Small Leak. JS Vehicles: · P0456 - Evap System Small Leak. RT Vehicles: · U0140 - Lost Communication With Body Control Module (BCM). · P0456 - Evap System Small Leak. The following transmission enhancements are also included in this software update: · Garage shift engagements into D may be harsh at times after shutdowns of 10-30 minute duration. · 5/6 Upshift timing adjusted to improve top speed performance (markets where speeds in excess of 161 kph (100 mph) are permitted).

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