On May 12, 2015 I was driving on I35 near Hewitt Texas at 70 MPH when the car almost stopped with no warning. A pick-up behind me just did get stopped about 12 inches behind me. I thought I was going to be killed. On May 17, 2015, I was on Highway M31 going about 60MPH the same thing happened. This time I could pull to the right shoulder. A semi loaded with chickens pulled to the left and missed hitting me. It happened again on May 21. A friend was with me on Waco Drive going about 50 MPH and the same thing happened. Each time I would take the car to Buick and they said we repaired the car, yet it did the same thing. I purchased the car March 13, 2015. I owe monthly payments. I am not going to pay any more on this LEMON. The Buick company says all problem was taken care of. My credit will be messed up. Bad credit or killed, I choose bad credit. I am going to give this car to the lean holder.