Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the...
Jeep technical service bulletin 21-045-20 for 2019 Jeep Cherokee.
- Bulletin number
- 21-045-20
- Component
- Power train
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience any one of the following: An audible clunk after applying throttle from a coasting condition, predominantly in fifth and sixth gear while driving 48-72 kph (30-45 mph). Poor shift quality or ?bump? experienced during 2-1 coast downs with light brake or no brake applied. Vehicle does not default to automatic drive. Paddle shifters are disabled. "Shift not allowed' displayed in cluster when attempting to upshift while already in 9th gear.
Owners of these vehicles have filed 836 complaints in the transmission category.
Vehicles covered
- Jeep Cherokee 2019 2019
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