REAR SPOILER (for Sedan): Disassembly

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE HIGH MOUNTED STOP LIGHT ASSEMBLY
1. Tie a piece of string to the tip of the wire harness.
2. Remove the 2 screws and the high mounted stop light.
  
  Fig 1: Locating Screws And High Mounted Stop Light
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002