Flash: Transmission Control Module (TCM) Updates
Jeep technical service bulletin 21-026-19 REV. A for 2019 Jeep Wrangler.
- Bulletin number
- 21-026-19 REV. A
- Component
- Power train
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following (DTC) has been set:P1614-00 - ECU Reset-Recovery Occurred. Customers may also experience excessive gear shifting above 120 kph (75 mph) at highway speeds.
Owners of these vehicles have filed 81 complaints in the transmission category.
Vehicles covered
- Jeep Wrangler 2019 2019
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