Youu need to open trunk lid remove the two screws
holding tailight pull out tailight replace bulb very simple
In a 2004 Mitsubishi Lancer replacing the rear light bulb is relatively easy. First remove the plastic cover from the dome light. Unscrew the light bulb and insert the replacement.
See sources and related links below for the 2002 Mitsubishi Lancer headlight bulb info.
peel off carpeting behind the tail light from the trunk. there should be bulb holders- pull out the holder that holds the busted bulb. you can do this by slightly turning it and pulling it out. change the bulb and replace the holder the same way you removed it.
The bulbs are LEDs (light emitting diode). It is a set of bulbs, fused together, you cannot change individual bulb. You can buy a set from any dealer or from the Internet and change it by yourself or you can go to a mechanic.
On the lancer its easy just pop the trunk open find out which lights are out and take the screws out that hold the lights in place and pop the bulb out that isn't working by turning it and replace it.
With out car make model and year with the location of the bulb this question can not be answered
how do i change front interior light for lexus rx 300 2004 model
its like changing a light bulb and depends on the car model 2007 volkswagen beetle
light bulb's
Phone your local Mitsubishi dealer
how can i change bulb
2004 Mitsubishi Lancer tail light bulb replacement: Purchase the correct replacement tail light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the tail light bulb 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).