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December 19, 2013 Service bulletin

Jeep: transmission control module (TCM), on some jeeps, with new software robustness improvements,...

Jeep technical service bulletin SB-21-014-13 for 2014 Jeep Cherokee.

Bulletin number
SB-21-014-13
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Jeep: transmission control module (TCM), on some jeeps, with new software robustness improvements, experiencing inconsistent and/or harsh 1-2 or 2-3 upshifts. Model 2014 cherokee.

Owners of these vehicles have filed 1,472 complaints in the transmission category.

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