Modern car odometers can record up to a million miles driven. What happens to the odometer reading when a car drives beyond its maximum reading?

The odometer reading of a modern vehicle resets to Zero, once it's maximum odometer reading is reached.

Learn more : link

  Unlike old vehicle odometers that will reach 999999 and stay there(though it is very unlikely to reach that figure) new vehicle odometers have the seventh digit reading and when it passes 999999 it would clock to 1000000.

     But in reality it is less likely for vehicles to reach the 999999 mark and most vehicle owners do not get to see their vehicles reach this mark as the vehicle will either be scrapped or abandoned before it gets to that million mile

Further, the ideal behind this million miles is due to the act of bad guys who tend to spin vehicle odometers to falsify their readings making it seem as though it has not gone a long mile.

answer ingenuity;