The requirement to make parts for 10 years after a car is discontinued is false.

Video lonked below goes over this in detail.

TL/DR: there is no federal or state law requiring auto manufacturers to continue making parts for cars 10 years after they stop sales of the car. There are possibly industry standards that suggest that as a good practice but it is bot required.

https://youtu.be/2M7iTxLD0MA?si=8oA2z3WlLoOEaGEQ