Engine Belts And Pulleys problems of the 2011 Buick Lacrosse

When turning left at a traffic light, my car lost power and I wasn'¿¿t sure I was going to make it around the corner. After a few seconds my car regained power. 45 minutes later, I made a right turn into heavy traffic and then felt a sudden lurch. I looked in the rear view mirror and saw that my trunk had popped open. I managed to get off the highway, parked the car and turned off the ignition. I got out, closed the trunk, got back in the car, and fastened my seatbelt. Before I could close the door, the trunk popped open again. This occurred three times before the trunk finally stayed closed. A few minutes later, I parked the car, opened the door, started to get out and the warning chime sounded. I got back in and saw that the ¿p� on the console shift lever that indicates your car is in park was lit up even though the car was turned off. In order to get the ¿p� light to go off, I had to restart my car and then turn it off again. Next I pushed the onstar phone button and asked to ¿call my home�. I got a busy signal. I called a second time and my husband at the number I was calling, heard me telling onstar ¿call my home� but I couldn't hear him trying to talk to me. All of these things happened within 1 1/2 hours. The next day, I found that I could not lock the door by touching the lock spot on the outside door handle. Then I could not unlock the car door by pulling on the door handle when the key was in my pocket. I have had the car for 1 year and eight months and the driver¿s memory seat has often lost its memory. Sometimes just one button but most of the time both buttons. Prior to this I had been having trouble with my trunk. I'd leave my car parked in a public parking lot and come out to find my trunk wide open. On may 3rd the gm dealer replaced a part hoping to fix this problem.