Funny this post comes up today.
Just yesterday, I accindently spilled some coffee in my center console (1oz). Stupid travel mug.
Anyway, about 5 minutes later, my check engine light comes on. Related??? Who knows. I called the dealer to ask if there was something in there that could have been affected and was told that there is a gear shift sensor. If it did get coffee on it, he said that the car may not come out of park
He said that they see at least one of these cases once a month.
I will have the ODB-II code read to see if there is a relation between the coffee and the CE light, but no problems shifting so far.
Stupid travel mug!