Flash: Transmission Control Module (TCM) Updates
Jeep technical service bulletin 21-034-21 for 2021 Jeep Renegade.
- Bulletin number
- 21-034-21
- Component
- Power train
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience one or more of the following concerns:Harsh 1-2 or 3-4 upshifts
Owners of these vehicles have filed 6 complaints in the transmission category.
Vehicles covered
- Jeep Renegade 2021 2021
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