Owners/service Manual problems of the 2011 Nissan Rogue

Going down the interstate at cruising speed, with speed control set, it would just drop off cruise control on it's own and speed decreased rapidly. Manual acceleration would also not work. I had to exit the interstate at very low speed. We allowed the Rogue to sit for about 10 minutes thinking that is was overheating as we had been on a road trip and were heading home. After turning it back on it was acting normal again. We didn't have any trouble withit again until the next summer when we took a road trip again. Since then it has happened several times so I knew that it couldn't be from the car overheating. I took it back to the dealership where they told me that there was a service bulletin concerning this issue, but the 2011 model was not covered. This is insane. I was told it would cost approximately $5,000 to repainr. This is a major safety concern. I have no idea how long this problem has existed becaues we had never taken in on a road trip until about 50,000 miles when it occurred. We took it to the dealership after the second incident at 62,000. They said they would have repaired it had we brought it in prior to 60,000 but since it was over they would cover nothing even though they admitted there are problems with many of thier transmissions!! they also said they would only replace or add a cooling fan but they would not try to repair it because that was not allowed by Nissan. They said Nissan will not even let them open it up. This is very wrong!.