Car is being used on short runs only.
The second most common problem is related to the vehicle's service brakes, hydraulic 17 problems.
However, my mechanic said that speed sensors can go out in any car at any time, and it is not just a Hyundai thing believe me, I asked.
After a bit even they went dead.
I've been having this problem for quite a long time now and, when scanning it, there is no error indicated.
If yes then, the problem is probably not in the speedometer, but the signal going to it.