Service bulletin 18-077-25

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: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **U0104-00 - Lost Communication With Cruise Control Module. (NA Market Only) ● U0405-00 - Invalid Data Received From Cruise Control Module. (NA Market Only)** ● P018B - Fuel Pressure Sensor "B" Circuit Range/Performance. ● P00C6 - Fuel Rail Pressure Too Low - Engine Cranking Bank 1. ● P06DD - Engine Oil Pressure Control Circuit Performance/Stuck Off. ● P0461 - Fuel Level Sensor "A" Circuit Range/Performance. ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. ● P0604-00 - Internal Control Module Random Access Memory Ram Error. ● P060C-00 - Internal Control Module Main Processor Performance. Customer may also experience one or more of the following: ● Undesirable vehicle drivability behavior causing a Shift to Park event during Engine Stop Start (ESS) while Adaptive Cruise Control (ACC) is active. ● Pressing the ACC button while ESS is active can shift the vehicle to park. ● Idle speed oscillations observed when in "Snow" and "Mud" modes. ● Poor engine performance (undershoots engine speed) for ESS and for non-ESS engine start. ● Screen two incorrectly pops up on the Instrument Cluster Panel (IPC) for five seconds during "Terrain" and "Rock" mode. ● Poor or reduced Air Conditioning (A/C) performance during wide open throttle or heavy acceleration. **In addition, the following software enhancement is available: ● Software update to prevent false DTC detection of U0104-00, U0405-00 and P018B. (NA Market Only)* This bulletin involves reprogramming the PCM with the latest available software.

The document

• NHTSA's copy of the document (PDF)
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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.

Trouble codes named

P00C6, P018B, P0461, P0604, P060C, P06DD, P2C90, U0104, U0405

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

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