Removal Procedure

Cycle sunroof window to the full rearward position.
Push air deflector pivot bracket outboard tab (1) inward to release from the track (2). Repeat for the other side.

Fig 1: Pushing Air Deflector Pivot Bracket Outboard Tab
Courtesy of GENERAL MOTORS COMPANY
Using a small flat bladed screwdriver, release inboard air deflector pivot bracket tab (3) from the track. Repeat for the other side.
When air deflector pivot brackets (1) are released from the track (2), raise the rear of the air deflector up and the front of the air deflector (3) will disengage from the retainers in the sunroof module.

Fig 2: Air Deflector Pivot Brackets And Track
Courtesy of GENERAL MOTORS COMPANY
Remove air deflector (3) from vehicle.