I had went to the dealer when the car had 80000 miles and the dealer said I had to replace the $700 drivers side catalytic converter. I ended up not having it fixed and waited until 103000 miles had both catalytic converters removed to analyze the problem but it still stalled and completely stopped the car. I ended up going to the dealer and found out it was the Electronic Brake Control Module needed to be replaced. It would have been fixed under warranty if I removed both catalytic converters to analyze the problem but I had to fix the problem out of pocket.