Test drove a 2010 LaCrosse today
 

It was 85 degrees, car had been sitting in the sun, and the air conditioner
did not work at all. Drove the car 10 miles, salesman was with me, and
he couldn't get it to work either. This was a 2010 LaCrosse CXL with a sticker price of 40k.

Sounds like a Lemon.

I liked everything else about the LaCrosse except the center stack and console
are not as nice as the 2010 Taurus I'm currently driving. I'm considering trading
the Taurus for a LaCrosse at the end of this year, but haven't made up my mind
for sure yet.