just be carefull. there is a tsb for the deflectors breaking.
Date: December 02, 2008

Subject:
Wind/Air Deflector Bracket on Sunroof Module Broken (Replace Bracket)

Models:
2006-2009 Chevrolet HHR

Condition

Some customers may comment that the sunroof will not close because the wind deflector won't fold down properly when the sunroof glass closes
The end on the wind deflector retaining bracket may have broken off, which causes the wind deflector to function improperly.

Correction

1. Remove the headliner following SI procedures.

2. Open the sunroof and protect the interior.

3. Clean the sunroof tracks around the broken bracket.

4. Tape off the area around the bracket to contain the drill shavings in the next step.
5. Using a 1/4 inch drill bit, drill off the head of the two rivets.

6. Vacuum the drill shavings.

7. Using a small drift, pound out the rest of the rivet in the sunroof module
8. Attach the wind deflector to the new bracket and clamp the bracket in place.

9. Using the holes as a guide in the sunroof module, drill 1/8 inch holes through the bottom of the new brackets
10. Install two 1/8 x 3/8 inch long rivets (obtained locally) through the BOTTOM of the sunroof module to the new bracket.

11. Apply weatherstrip adhesive to the top of the rivet head.

12. Replace the bracket on the other side following steps 3 through 10.

Important: Make sure the tracks are clean and no metal shavings are present.

13. Cycle the sunroof several times to make sure the sunroof functions properly.

14. Reinstall the Headliner following SI procedures

 

TIP of the DAY......If you run around with your sunroof open, do not engage in a game of tweaking off the truck drivers, especially those drivers who like to chew..or dip...
This has been a public service announcement

 

Mine closed at 60mph is horrible and at 80 can't hear the radio. Its so bad I thought it was open. maybe just silicone it shut?

 

Try adjusting the tracks