Flash: Transmission Shift And Drivability Enhancements
Jeep technical service bulletin 21-026-15 for 2014-2015 Jeep Wrangler.
- Bulletin number
- 21-026-15
- Component
- Power train
- Summary
- Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following transmission related concerns. ? Less than desired shift response when towing or driving up steep hills in high ambient temperatures. ? Delayed shift when driving in 4WD Low. ? Vibration or resonance in the cabin on acceleration from a cruising speed.
Owners of these vehicles have filed 139 complaints in the transmission category.
Vehicles covered
- Jeep Wrangler 2014-2015 20142015
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