How to Reduce Wind Noise in a Trailblazer
- 1). Park your vehicle on level ground and turn off your vehicle's engine. Ensure that all of your vehicle's doors and windows are closed.
- 2). Spray your vehicle's windows with the garden hose. Open the doors and inspect the inside of your vehicle for signs of water leaks. Inspect the weather stripping around the door for signs of damage as well as leakage.
- 3). Insert the silicone sealant into the caulking gun. Apply the silicone sealant to the areas that had signs of leakage and visible damage. Allow the sealant to dry before closing the door.
- 4). Wait approximately one hour for the sealant to dry. Close the doors and spray the windows with the garden hose again. Check for any water leaks and reapply sealant as necessary.
Source...