The third brake light on a 2007 Toyota Avalon is replaced by first removing the rear, retaining screws. The wiring harness can then be disconnect and the light bulb removed.
Step by step procedure for replacing the high brake light, with pictures. https://picasaweb.google.com/thaalsm/ToyotaAvalonHighBrakeLightReplacement
You take your foot off the brake pedal.
Above the brake pedal, on top of the pedal lever.
brake light switch above the brake pedal
it means a brake-lamp bulb has burned out
To replace your brake light, you need to unscrew the brake cover from the inside of the trunk. Then you will be able to pull the old bulb out and replace it.
Your best bet would to take it to the Automobile store.
The lamp in the top brake light of a Toyota Highlander can be replaced by the locating the light housing from the trunk. Find the light cover and remove it to access the lights. Replace the bulbs.
replace the break light bulbs?
How do you reset the Airbag warning light on a 1995 Toyota Avalon?
only toyota could be this stupid and incompetent...
Take out the side indicator light assembly (which is most difficult part) and then replace the bulb.