Flash: Transmission Control Module (TCM) Updates
Jeep technical service bulletin 21-018-20 for 2017-2018 Jeep Cherokee.
- Bulletin number
- 21-018-20
- Component
- Electrical system
- Summary
- 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.
Owners of these vehicles have filed 532 complaints in the electrical category.
Vehicles covered
- Jeep Cherokee 2017-2018 20172018
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