DIY, change the front grille on your Honda CR-V, the model produced in the years 2002, 2003, 2004, 2005 and 2006. The repair process will require a flat blade screwdriver and probably a Phillips screwdriver (to move the chrome parts and the Honda emblem from the old grille to the new one). You should be able to finish the replacement in less than half an hour.
First, open and secure the hood of the car and then go above the grille and remove the six plastic body pins that you can see in the image below. They secure the grille at the top side. Use the tip of a flat blade screwdriver, insert it and pry up the middle of the pin first and then the whole plastic retainer can be pried out and removed.
Once you take those pins out, the bottom of the grille should pull out easily. So, grab on and pull it towards you, then lift the cover on top of it, to remove it completely. At the bottom, the grille has two clips that slide into pins on the front bumper (see an example in the picture below).
Before you install a new grille, you can transfer the chrome parts from the old one. These bezels are held by Phillips screws, so use an appropriate screwdriver to remove them and reinstall them on the replacement grille. Put the new grille back into the front bumper, make sure you secure it at the bottom first, into those pins and then secure it at the top, with the six retainers. This is all you have to do, if you wish to remove and replace the front radiator grille on your Honda CR-V, the model made between the years 2002 and 2006.