Car Falls into the ground

Im using the RCC asset and i have followed all the steps but when i press play my car just falls, falls do fast it looks like it disappeared plz help i’m so confused

Try to see again your objects of car and ground, make sure do not checkup the "Is Trigger.


Hope it help.

Car Falls into the ground. I’m using the RCC asset and I have followed all the steps but when I press play my car just falls. mypennmedicine