Transmission cooling line leak locations

What is your question?

Where are the common places a slow transmission cooling line leaks. After driving about 10 miles there is a faint smell of either transmission fluid, brake fluid, or power steering fluid and no signs of leaks. Could it possibly be a small brake fluid leak from the brake system on front drivers side brake system

What makes this problem better or worse?

Minor issue to correct before it turns into a bigger problem

How long has your 2010 Cadillac DTS had this problem?

One week