What is a Certified Pre-Owned Cadillac? This car has earned eligibility into Cadillacs certification program. Earning Cadillac certified status is a true mark of distinction and quality. To be eligible a pre-owned car must still be within the original factory warranty and pass a 172-point inspection by a certified Cadillac technician. The vehicle must also be in tip-top running condition and with all the scheduled maintenance performed by the dealer. For the fee, a dealer can then apply to Cadillac for certification status. The benefits of certification are: an extension of the standard factory warranty from 4 years or 50,000 miles to 6 years or 100,000 miles an extension of Cadillacs free roadside service for the same term, as well as possible better access to better - sometimes much better - finance rates through GMAC (credit permitting). The warranty coverage alone is worth close to $3,000. Only franchise deal