How do you remove a headlight on a 2002 Hyundai Elantra?
1. Disconnect the negative (-) battery terminal.
2. Remove the head light mounting bolts. There are 3 of them. 2 are clearly seen when you open the hood, the third one is a little trickier. It's in the middle back of the headlamp. Once you remove these 3 bolts, the headlight comes right off. Be careful and don't pull too hard, there are 2 harnesses attached to the headlight which must be disconnected before you can remove the head light assembly.
3. Installation is the reverse of removal.