How much does it cost to replace an ignition key to a 1990 Cadillac Seville?

Replacing an ignition key for a 1990 Cadillac Seville typically costs between $50 to $150, depending on whether you need a standard key or a more complex transponder key. Costs may vary based on the locksmith or dealership you choose, as well as any additional programming required. It's advisable to contact local locksmiths or dealerships for precise quotes.