VolkswagenJetta2011-2018VW Jetta Trunk Tail Light Replacement By Rushit Hila, ASE Certified Mechanic Updated: 02/01/2022. In this guide, we will be showing you how to replace a rear taillight. Table of Contents Procedure Park the vehicle, set the parking brakes, and open the trunk lid. On the side with the worn-out bulbs, remove the little plastic cover behind the trunk lid that allows you to access the bulbs. Depress the two plastic clips that hold the light assembly in. Be careful not to break those or the light won't go back in.