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September 5, 2014 Service bulletin

Flash: MIL Illumination For P0733, P061B, P1DB8

Jeep technical service bulletin 21-027-14 for 2014-2015 Jeep Cherokee.

Bulletin number
21-027-14
Component
Electrical system
Summary
Flash: MIL Illumination For P0733, P061B, P1DB8 This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. The following Transmission Control Module (TCM) calibration improvements are available. ? P0733 Gear 3 Shift Incorrect Ratio ? P061B Internal Control Module Torque Calculation Performance ? P1DB8 Due to erroneous DTC ? Improved downshift response in Adaptive Cruise Control (ACC) operation when there is a driver override.

Owners of these vehicles have filed 777 complaints in the electrical category.

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