How do you change a front side light bulb?

It will vary by vehicle and this can't be answered specifically without the make, model and year of the vehicle. The general headlight bulb lamp replacement procedure: Purchase the correct replacement headlight bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information and full light bulb part numbers list. Then consult your owner's manual for the headlight bulb lamp replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).