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Service bulletin 18-161-22

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10229791
Published by NHTSA2023-01-17
Manufacturer's number18-161-22
Manufacturer's date2022-12-03
NHTSA componentELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; VEHICLE SPEED CONTROL; EXTERIOR LIGHTING

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P02EE - Cylinder 1 Injector Circuit Performance. P02EF - Cylinder 2 Injector Circuit Performance. P02F0 - Cylinder 3 Injector Circuit Performance. P02F1 - Cylinder 4 Injector Circuit Performance. P2C90 - Crankcase Ventilation System - Hose "A" Disconnected. P1D73 - AGS performance fault. P04FC - Crankcase Ventilation System Performance. P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation(Enlarged Europe and Middle East/Africa) only equipped with Gas ParticulateFilter (GPF))(DTC will set when driving above 72 kph (45 mph). 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. P050B - Cold Start Ignition Timing Performance. P258B - Electric Vacuum Pump Performance. C1252-92 - Vacuum Pump Control Circuit - Performance Or Incorrect Operation. P2B95 - Cold Start Injection Pulse Performance. P062A - Fuel Pump Control Performance. P058C - Battery Monitor Module Temperature Monitoring Performance. P0607 - ECU Internal Performance. Injector performance faults for cylinders 2 - 4 map to DTC for incorrect cylinders. In addition the following software enhancement are included: AGS stuck condition (The customer won't see an issue, but this calibrationallows AGS performance fault - P1D73, to work correctly). Software corrects an issue with the wrong cylinder identification if an injectorcircuit performance fault is set in the PCM: If any of the series of injector control circuit faults are set, please refer tothe bullet-pointed list below to determine which injector to address.

The document

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.

Components

Driver assistance, Electrical system, Fuel system, Lighting, Throttle and cruise control, Backup camera

Trouble codes named

C1252, P02EE, P02EF, P02F0, P02F1, P0456, P04FC, P050B, P058C, P0607, P062A, P152F, P1D73, P258B, P2B95, P2C90

Vehicles listed
JEEP CHEROKEE2019

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

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