I have an 07 Tribeca and last night I replaced the passenger side low beam bulb. I noticed now that the tail lights don't shut off, even when the switch is in the off position. I used to turn the switch to off and the tail lights would turn off. I know that the head lights stay on because of the drl feature, but are the tail lights supposed to stay on too? The lights are completely off when the key is turned to the "acc" position and the switch is turned off, but when I turn the ignition and start the car then the tail lights and head lights come on even though the switch says off. I know for sure it is NOT the parking switch on, as I've fiddled with it already. I've also tried switching the position of the wires that attach to the bulb. Has anyone had this problem before?