Auto loan default question

I had recently lost my job and missed 3 car payments. Now I got a letter saying that the loan is in default and that full payment of the value of the loan, which is about 13K, is due immediately. The notice says to call or make a payment. Now I have already found another job and I'll be able to pay the past due amount plus the current months payment in three weekly installments. Even if the loan is in default, will they still accept the money that would bring me current on my payments?