The way I did it was to remove the grille and unscrew the headlight housing from the truck. Very easy to replace the bulb that way. Not too difficult to remove the grille at all.
Make sure the rubber grommet from the old bulb is not still stuck in the headlight housing. There is not room for two rubber grommets when you go to install the new bulb.
2008 Liberty Sport 4x4 Automatic