Is not paying car loan is a crime?

I've been ask this scenario by one of my co worker, if they took a loan of a car and not paying at all from the beginning can that be consider a criminal matter like such arrest can occur or its only repossession that will likely to happen? My personal answer would be a repossession that would most likely occur... show more I've been ask this scenario by one of my co worker, if they took a loan of a car and not paying at all from the beginning can that be consider a criminal matter like such arrest can occur or its only repossession that will likely to happen? My personal answer would be a repossession that would most likely occur since it's not a theft considering the lender approve the loan and the borrower went default. Please let me know if you have experience in the past or have knowledge. No stupid answer please. thanks.
Update: I live in California
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