Home18-063-24 · JEEP
JEEP

18-063-24

Manufacturer communications

Publication date
2024-07-25
Received by NHTSA
2024-07-30
NHTSA record numbers
11005321

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 one or more of the following Diagnostic Trouble Codes (DTCs):
• P06DD - Engine Oil Pressure Control Circuit Performance/Stuck Off.
• P00F3 - Humidity Sensor Circuit Range/Performance. Customer may also experience one or more of the following:
• Customers may experience coasting complaints at lower speed.
• Undesirable vehicle drivability behavior causing a vehicle 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. This bulletin involves reprogramming the PCM with the latest available software."

NHTSA manufacturer communications ↗

Reported code forms

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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MakeModelModel year
JeepGRAND WAGONEER2024
JeepWAGONEER2024

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