I've never had any problems with my transmission for the 4 months I've had it, never. I'm the original owner and its now got about 4500 on it. On my drive to work (which is about 5 miles) my car was fine, until I pulled into the parking lot and it didn't want to go into second or first. I thought it was just acting up for no reason so I forgot about it until I left. Then when I left work, I couldn't get it into reverse. I had to roll backwards out of my spot to get out. Now, none of the gears are easy to get into and 5th is very bad and reverse is nearly impossible. 6th made a slight grinding noise with the clutch all the way to the floor. I'm thinking of briging it to a dealer tomorrow to look at it but I'm curious about my warranty. Does my Corsa exhaust void it at all? If it doesn't and they say it does should I fight it? Also, I know GM is tight with loaning cars to people who aren't 23. I'm only 20 and I don't know if they'll give me a loaner while my car is in the shop. I'm sure they'll give me a sunfire or something with a million miles on it if they do. I just want to know what to expect when I go in tomorrow.