I took car in 3 times. It was bogging down, loosing power. On the 3rd time I returned I was told. Guess what, we just received a bulletin from Toyota saying there is a calibration problem with the 2011 corollas. Everything you complained about is actually what Toyota said was wrong. It took 3 times for me to get this fixed.
NOW..living in Texas I never rolled down my windows till the week of 18th of Sept 2011. Cooler weather, don, t need A. C. in morning. I rolled down back windows and a thunderous..I mean loud noise occurred hurting my eardums. you can, t hear radio it is so so loud.
I called them and was told yes in the CHEAPER MODELS you have to roll down the front window in order for the noise to stop. I don, t want my front windows down driving on freeway. I would of bought a convertible if I wanted to get wind blown.
Please roll back windows down before buying.