shifting

My 2003 Toyota Corolla LE has lost all power and gears lock up, My battery light turns on and off but when I popped the hood and pressed down on some sort of electrical connector(I don't think it's a fuse) my hazard lights start blinking and I have to press the unlock button on my key to turn...

Sometimes after warming up my 2013 Corolla S, when I start to drive, I get a hard shift from 1st to 2nd gear. The car juts forward real fast. Sometimes I don't let car warm up all the way, but I try not to just start the car, and drive off right away. But the hard shift is more noticeable when I...