Service bulletin 18-040-16

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.

NHTSA's summary

Flash: 3.6L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. The following powertrain system improvements/enhancements are included in this software release: · **P0335 - Crankshaft Position Sensor Circuit.** · P0480 Cooling Fan 1 Control Circuit/open. · P0456 EVAP System Small Leak. · U0402 Implausible Data Received From TCM. · P0441 EVAP Purge System Performance. · P0116 Engine Coolant Temperature Sensor Performance. Other enhancements included in this update: · **Elimination of (disable) Low idle 550 RPM to mitigate rough idle complaints (Base idle fully warm maintained at 648 RPM).** · New software to address customer?s concern of extended crank times when starting engine. · Software to enable the clearing of erroneous DTC U0140 Loss of communication with the Body Control Module (BCM). · New software to enable the ?Transmission Quick Learn? feature.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline

Trouble codes named

P0116, P0335, P0441, P0456, P0480, U0140, U0402

Listing a model year does not mean every vehicle of it is concerned: the document says which.

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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