[yspert]

very simple to do....for most people.
take the trim piece off from around the "glass". typically, it will have
a couple or four screws holding it on. then a socket to remove the cluster.
disconnect the plug(s) and move the "L" bulb to the "D" slot.
reverse procedure and test drive. the bulb may have a green cover
that you have to transfer to the new bulb. lowering the steering wheel
to the lowest position normally helps and don't turn on the key. yspert