When a car loan is not repaid, the lender has the right to repossess the car as a means of recovering the debt. The lender may pursue both the primary borrower and the co-signer to satisfy the debt, which could involve legal actions such as lawsuits or wage garnishments.
It's important for co-signers to be aware of the risks and responsibilities associated with co-signing a loan, including the potential for legal consequences and damage to their credit if the loan goes into default.