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Service bulletins for the 2018 Jeep Cherokee

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.

211 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
W20 Combo2021-03-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Customer Satisfaction Notification W20 Reprogram Powertrain Control Module
W20 Combo Phase22021-02-16. Service bulletin. POWER TRAIN. Customer Satisfaction Notification W20 Reprogram Powertrain Control Module
S20210000042020-08-24. Service bulletin. POWER TRAIN. Valve Body Learn Procedure On WiTech Shows The Transmission Is Not In The Proper Gear After Repairs
S20180000032020-05-26. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Customer complaint may include MIL/Check Engine lamp on. Upon further inspection, fault code P219A - Bank 1 Air-Fuel Ratio Imbalance may be found in the powertrain control module (PCM) as pending, active, or stored. Other fault codes P1066, P1068, P106A, or P106C (Solenoid Valve Switch Off Time Out of Range) may also be stored. Customer may also complain about loss of power or engine running rough while P219A is active.
90042442020-05-26. Service bulletin. POWER TRAIN; FUEL SYSTEM, GASOLINE. COOLER, Transmission Oil Work procedure to address fluid leak issue with the transmission oil cooler on the MP (Part # 68249191A$), KL (Part # 68399021A$) and RU (Part # 68217322A$) needs to be followed. Service Instructions for the Condition of a TOC fluid leak: 1) Mark the leakage area if visible to assist in diagnosis and determination of the area where the leak has occurred. 2) If fluid leak was caused by damage or leakage at the transmission oil cooler: - Replace transmission oil cooler - Test drive and verify no additional fluid leaks 3) If fluid leak was caused by leak at quick connect fittings: - Replace transmission oil cooler lines - Test drive and verify no additional fluid leaks
21-018-202020-05-26. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customer may experience a undesirable or long 5-4 shift during a vehicle coast-down.
21-018-202020-05-18. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customer may experience a undesirable or long 5-4 shift during a vehicle coast-down.
21-018-202020-04-27. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customer may experience a undesirable or long 5-4 shift during a vehicle coast-down.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.