The repossession itself probably is not damaging. The damage is done by the default that resulted in the reposession. Failing to pay the loan hurts your credit.
Repossession happens when payments are not made on a purchase. In this case, your credit score will be adversely affected and you may be unable to obtain credit again.
It takes years to repair,New credit cards require building trust, and with higher interest rates. About 20 years ago this happen and I satisfied within one year of repo.