How do you put replacement taillight cover back on car. The tall red plastic cover on driver side rear. It fell off & I bought a replacement & don't want this one to come back off.

All you need to do is get to the back of each housing. Open the trunk, remove the bottom floor, and then pull back the paneling the covers the rear of the housing. There will be small clips holding it in. Then there are 2 10mm nuts that you remove for the taillight. Alex