Jiangxi Isuzu pickup truck looks at the kilometers on the dashboard. How to look at the kilometers on the dashboard: There are two sets of numbers on the dashboard of a general car. The top line is thousands of digits, recorded once every 1000 km. The following are the total kilometers traveled by vehicles. The speedometer is actually composed of two instruments, namely speedometer and odometer. The odometer is a digital instrument. The transmission gear of the counter drum meshes with the worm on the transmission shaft of the speedometer to make the counter drum rotate.