Haha, LOL, I thought I am the only one with the CAT PEE smell problem. My 07 GS350 had it first; I tried to wash the car underneath thoroughly because I really thought a cat peed on my car. It did not work so I continue suffered it for about more than a month then it slowly went away. Then the Highlander (2003) got the same problem for the first time and it just got rid of the smell now. I was think about the mould from the cabin air filter…