if it is the top hi viz lamp,if you open the tailgate I think there are two slots behind the lamp and a couple of spring loaded clips which a small screwdriver will help release the clips and the lamp should pull out,can`t remember the part no but it is a large capless bulb,if it is on the side of the motor then there is a large plastic wing nut accessed in the boot area at the lower end of the lamp and I think a couple of Phillips screws up the side,then the whole lamp should pull off the body for access.
cdc, September 2013