Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the...
Ram technical service bulletin 21-005-21 for 2021 Ram 1500.
- Bulletin number
- 21-005-21
- Component
- Exterior lighting
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following on a vehicle with less than 64 km (40 miles) on the odometer:A Malfunction Indicator Lamp (MIL) event or failure withnoDiagnostic Trouble Codes (DTCs) and the vehicle has less than 40 miles on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event. Do not use this software update if vehicle odometer has over 64 km (40 miles).
Owners of these vehicles have filed 13 complaints in the lights category.
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