Flash: Transmission Control Module (TCM) Updates
Jeep technical service bulletin 2102421 for 2020 Jeep Wrangler.
- Bulletin number
- 2102421
- Component
- Exterior lighting
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience one or both of the following conditions: A Malfunction Indicator Lamp (MIL) event or failure with no Diagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event.
Owners of these vehicles have filed 9 complaints in the lights category.
Vehicles covered
- Jeep Wrangler 2020 2020
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