JEEP

18-064-24

2024-07-25 · NHTSA 11005322

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** ● **P018B - Fuel Pressure Sensor ""B"" Circuit Range/Performance.** Customer may also experience one or more of the following: ● **Undesirable vehicle drivability behavior causing the a Shift to Park event during Engine Stop Start (ESS) while Adaptive Cruise Control (ACC) is active. ● Pressing ACC button while ESS 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 5 seconds during Terrain and Rock mode.** ● Poor or reduced air conditioning performance during wide open throttle or heavy acceleration. This bulletin involves reprogramming the PCM with the latest available software."

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.