Tereska, that's about what we got here in Oakville too :)

And yes, I had the rattle too, solution #3 is also quite acceptable... drive it and it will probably go away... I didn't notice it anymore by the time I got to work (~30min at 50-80kph)

 

Welcome, I also take mine to car wash to clean out wheel when it gets snow packed. Chevy service dept. told me that after I took it in last year for the shakes when NW Ohio got 2 feet in a day, I felt 2 feet tall when Service Tech told me the problem cause I checked the wheel well

 

Good to know it's happened to someone else. Am now on the lookout for snowy windy conditions, everything's great now that we have warmer weather and it all melted. Am in love with the HHR (even though I can't see the traffic lights, it has a blind 'country' (instead of a blind spot), and the window controls are in the strangest place...) - it's still a cool baby truck.

Thanks y'all.