1. Disconnect the wire from the negative terminal of the battery.

2. Fold down the rear seat back.

3. Remove the rear shelf trim (see "Removal and installation of interior trim").

4. Remove the retainer...

5. ...and disconnect the wiring harness connector from the additional brake light connector.

6. Remove the mounting screws...

7. ...press the latch...

8. ...and remove the additional brake light.

9. Install the additional brake light in the reverse order of removal.
(The article was borrowed from the website: «CHEVYMAN.RU»)
