JEEP

18-079-25

Manufacturer communications

Publication date: 2025-08-21
Received by NHTSA: 2025-08-27
NHTSA record numbers: 11022166

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):
• P24B9 - Evap System Leak Detection Pump Pressure Sensor Circuit Range/Performance.
• P1CEA - Boost Side Evap Purge System Performance. Customers may experience the following:
• Check Engine warning lamp on in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming the PCM with the latest available software.

NHTSA manufacturer communications ↗

Reported code forms

P1CEA P24B9

Manufacturer wording

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

JeepP1CEA

Boost Side Evap Purge System Performance

NHTSA 11020751 · NHTSA 11022166 · NHTSA 11022559

JeepP24B9

Evap System Leak Detection Pump Pressure Sensor Circuit Range/Performance

NHTSA 11022166

Check vehicle applicability

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

Make	Model	Model year
Jeep	GRAND CHEROKEE	2025
Jeep	GRAND CHEROKEE 4XE	2025
Jeep	GRAND CHEROKEE L	2025

Data coverage →