how do i change upper brake light in a 1999 lexus?

Answer 1

Not sure what year they went to LED lighting, but if it is a bulb assembly →
Open the trunk. There will be a fabric liner around the taillight assemblies. It is held in by black push in fasteners. Carefully remove the fasteners. Gently pull back the liner to expose the lamp sockets. Twist to the left to remove.
The same method applies for LED lighting except the bulbs are not replaceable. The whole asssembly must be replaced.

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