JEEP

1809319

Manufacturer communications

Publication date: 2019-11-06
Received by NHTSA: 2022-09-15
NHTSA record numbers: 10220087

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) have been set:P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. P06EF - Engine Restart Performance.

NHTSA manufacturer communications ↗

Reported code forms

P0456 P06EF

Manufacturer wording

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

JeepP0456

EVAP System Small Leak.If DTC

NHTSA 10169221 · NHTSA 10169222 · NHTSA 10169225

JeepP06EF

Engine Restart Performance

NHTSA 10168431 · NHTSA 10168464 · NHTSA 10169221

Check vehicle applicability

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Make	Model	Model year
Jeep	GRAND CHEROKEE	2018

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