I have about 2000 ev miles on my 2016 VOLT and in general it has been working fine and am very happy with it. On two occasions it has flashed a message to have the rear camera serviced and yet the camera appears to be working fine. This has just happened twice. On another occasion for a prolonged period the tire pressure system was reported as not working properly with the tire warning lit. I was going to schedule it for service but the next day the error no longer appeared and it has been over a week since I received the error. Should I take the car into the dealer to have these things checked our or will it just amount to no trouble found.