Chrysler Town & Country inaccurate speedometer and odometer after cluster conversion from kilometers to miles, requiring computer reprogramming on Chrysler Town & Country

Some Chrysler Town & Country owners report experiencing inaccurate speedometer and odometer readings after converting the cluster from kilometers to miles, which may necessitate computer reprogramming. These issues can arise due to discrepancies between the digital and analog speedometers, with some readings showing up to 9 miles slower, indicating a need for recalibration. Additionally, owners may find that performing an Instrument Cluster self-test is helpful for diagnosing these inaccuracies, and if the speedometer does not move during the test, it could signal a problem with the Mechanical Instrument Cluster that requires replacement. Erratic behavior of the fuel gauge and inaccurate odometer readings may also occur, suggesting further inspection is needed to ensure correct functionality.