I've had my trailblazer for two years now about 4/2010 the windows would go up and down on their own and the power lock stopped working so chevy replaced the main control switch then about 6/2011 i had to replace the wheel bearings and the sensor twice and about 01/2012 the wipers and washer fluid wouldn't shut off got a new wiper motor put in and now the truck has been sitting since 4/2012 had to have it towed from albany because the truck just all of a sudden slowed down even with my foot on the gas pedal and now i have ten different codes that came up two for the camshaft sensor and solenoid the knock sensor the crankshaft sensor and a few other ones... we called chevrolet and they have no clue what is going on nor what is wrong with it. *tr