843de

Yeah, just had most of the 100,000 mile service done to the '06, and that belt was toast, the '07 will be getting its belt done shortly.

In case you're wondering, didn't forget the 100k trans fluid change, the previous owner did that at 75k so no need to touch it.

ChevroletCustomerService

Dear urbexHHR,

I have read your post about maintenance at 5 years and 51,000 miles. I recommend following the information about your maintenance schedule in your owner's manual. You can find this information on page 6-5.

Michelle, Chevrolet Customer Service

Marzipan

General Motors have some recommendations. They are in the Owner's and Service Manuals.

BlackScreaminMachine

Brake fluids most times do not need to be replaced unless you auto crossing the car and you boiled the fluid. I would make sure the bleeds are not stuck but would not go out of the way to swap fluid at this point. MAYBE a drum brake adjustment if needed.

Factory coolant should be swapped, for a good amt of years GM had issues with Dex-cool. My daily driver 2000 Buick Century got that dreaded sludge as well as my Trans Am.

Until you hit major intervals you should be fine. I myself will be having the Automatic Fluid swapped before the factory recommended timeframe/milage.