Keffer Kia

My wife and I purchased a car from here, long story short, at around 40k miles it would shut off while driving down the road...took it in 3x. They couldn't duplicate the problem so they couldn't fix it which is understandable...we got it back and it happened again this time locking up the steering wheel...the GM here told me there was nothing he could do and I should contact Kia....I thought they were Kia?? The service department was great in trying to find the problem but unfortunately couldn't. My issue here is no one in management attempted to help us...the vehicle is still under warrante and we bought the extended one as well...now I own a car that shut off by itself driving down the road...just what I want my wife and kids in...you would think the dealership would be doing everything they could to keep this car off the road...but nope they just want me to trade it in for another Kia as if it were a regular trade in putting me upside down on our loan. great sales idea!! Have your cars fail and try and upsell them...wonderful, why would I become a repeat customer