On my way home from the dealer the wrench light on the cluster turned on. After checking the manual it said its a power train failure. Car deffinetly loosed power. I am taking the car back to the dealer today. Any ideas or experiences with this light? I also noticed clusters computer doesn't calculate speed accurately I drive 90 miles from the dealer to my house at around 50 -80 mph and it kept saying the avg speed was 10mph also cruise control did t work. Am thinking its a speed sensor issue of some sort. Any other ideas?