Remove the cowl cover (plastic piece that runs the width of the engine compartment and has the leaf screens in it) and its an easy repair. There are 6 or 8 plastic clips holding it in place. These clips work by pushing them into place, than inserting a plastic pin in the center that expands the end of the clip to hold it in place. To remove, push the center pin all the way through, remove the clip and retrieve the pin.
If your plastic pins don't look like that, send me a picture and I will tell you how to remove them.
Thinking about it, you also have to remove the windshield wiper arms to remove the cowl screen. Remove the plastic cap from the pivot point, remove the nut, and gently pry up to remove the arm and blade.
2001 Bonneville SSEi (retired at 365,000 Kms.)
2014 Jeep Grand Cherokee Overland (yes, I know its not a GM)