Recently just changed the tail brake bulb by myself. Super easy to DIY.
1. Remove the clips from the liner. The liner is soft and can be bent so I just removed 3 clips. Use a flat head screw driver to pry the clip.
2. Bend the liner and you will see the tail light connectors. There is no need to remove the whole assembly. You can actually remove the individual bulb connects by twisting it.
3. Twist the bulb out from the socket. And put in the new bulb.
The rear brake bulb is P21/5W. Socket type is 1157. I bought from Autobacs @5.9 which is expensive. You should be able to find cheaper online or from other retailers.
