Use the lift tool on the inside corner of the trunk door. When a corner opens, you will hear clicking noise and you should work hard. After removing the inside of the trunk cover, use the enclosed 10mm wrench to remove the remaining screws. Then carefully clamp the key switch and light, then remove the cover and dispose of the garbage car. Insert the lights and buttons and reinsert the new tailgate and reinstall it using the new strong screw bolts.