It will not hurt to try the battery cable "trick."
Also remember that the "deck lid ajar switch" is what signals the info center reminder message, so check that switch. If it doesn't operate properly the message will not go away.
The switch has 2 wires, one is power the other is ground. Once the trunk is closed (or the switch removed and lowered to simulate the closing of the trunk) the contacts inside of the switch will close, thus completing the circuit to ground and then the computer will "know" that the trunk is closed and the light will not come on. I believe that either your trunk doesn't close all of the way (likely not the problem) or that the switch is faulty.
Tuesday, July 22nd, 2014 AT 4:25 AM