Correction of the last message:
I looked at the link that you sent me and put in Cadillac STS 2001 - there were NOT matches. Then I put in Cadillac Seville 2001 and got multiple matches. The car is a Cadillac Seville STS 2001 so I'm confused. I am a 56-year old woman and I'm trying not to get taken by a dealership on what is wrong and how much it should cost. How should I look at this? Is it a 2001 STS or a 2001 Seville??