Easiest way is to drive up on a small ramp and remove the plastic panel from under the bulb. Has 6 screws holding it on. Bulb holder twists out. It has a gasket around it to be water tight when reinstalling it. Bulb is amber 3157. got 2 for $4.10 at Riley. Another way is to reach in and push the front brake duct back and with small hand reach in and up to twist holder loose. My hand was to big.