Changing the bulbs by removing the grill and plastic "radiator cover" is actually very simple. I drove myself crazy until I broke down and bought a Chilton's manual. To change all four bulbs and remove/replace all the necessary plastic only took about 20 minutes... a small price to pay for knowing the correct way to change them. I do a fair bit of maintenance on my 02 TB. I recently heard someone tell me they paid $120 to have their fuel filter changed. The Chilton manual, Fuel filter and 15 minutes only cost me $40. By the way, the Trailblazers are great Trucks! If you don't want to buy a manual, e-mail me and I'll try to help you out by referencing mine.