Mom 80 yrs old, victimized by grandson, cosigned 4 his car, he no pay, Repossessed $16,779 owed. Alternatives?

My 80 year old Mother has been helpful and generous to each of us. Chase is the bank which repossessed vehicle. There is limited financial available. Chase requires full payment on account for return of vehicle ($16,779.--) and has until 11/06/06 to do so. Very concerned about my Mom's finances and her depleated emotional state because of this situation and the fact that her grandson doesn't seem to care. Is there a beneficial way for my Mom to end this?