I think it is crazy high, should be well below 1-2% for any "mature" (simple) product, for more complex products (let's say cars) it should be below 5%:

Cars: https://www.warrantyweek.com/archive/ww20230511.html

Hvac/appliances: https://www.warrantyweek.com/archive/ww20230706.html

But there are outliers (wind turbines):

https://www.warrantyweek.com/archive/ww20230309.html