Auto Loans — Tyndall Federal Credit Union is a auto loan from Tyndall Federal Credit Union. The ongoing APR is New Auto Loan originated at 3.24% APR financed for 36 months; New Auto Loan originated at 5.69% APR financed for 84 months; Used Auto Loan originated at 3.24% APR financed for 36 months; Used Auto Loan originated at 5.69% APR financed for 84 months; Rates shown are generally the lowest currently available..