Transmission leak on 2006 Buick Lucerne

This is my mom's car. She has less than 70,000 miles on it and has a transmission leak. Are these cars prone to having transmission leaks? I think it is coming from somewhere on the drivers side. Where could this fluid be leaking from? It is not a super bad leak, but is leaving spots on the driveway and she said that she had to get fluid added sometime ago and it is low again. I don't know how much fluid was added then or how long ago it was.

Asked by for the 2006 Buick Lucerne
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