KIMBERLI
Statute of limitation is calculated from the date of last activity in the account. In other words, the time period of the SOL will be calculated from the date of last delinquency in your account.
Since I don't have the complete information from you in this matter, I am framing it in this way. As your debt is secured, creditors can try to sell the repossessed item and make you pay for the balance amount that is owed after the sale of the item. Thus, the balance amount that you will pay becomes unsecured debt. If it gets past the SOL period, you can legally refuse to pay it further and also avoid all legal actions. Check the laws on statute in your state. Remember, if your debt is past the SOL period, a promissory note or a payment towards the account can actually renew the SOL period from the beginning and you will be brought back under legal actions.