Just to expand on what Franco said.......
Open the back door, under the taillite you'll see a small strap with one Philips (I think) screw holding it. Remove the screw and remove the strap. At the base of the taillite you'll find two screws, remove them and remove the taillite by the bottom first. The top is just locked in, pull it out. Replace the bulb and replace the taillite in reverse order.......
The bulbs aren't replaced in the 4.1 from inside the vehicle, as it is with many other makes...... :roll: BUT.......they are replaced from the inside in the 4.2..........go figure.....
Any problems, give us another post...... 8) ......been a while since I did this........ :?