For the 2009 Jeep Grand Cherokee, the high-beam headlight uses a 9005 bulb. Low-beam fitment depends on the headlight assembly: models with halogen headlights use 9006, while models with HID headlights use D1S. Confirm the headlight type before ordering, since these low-beam bulbs are not interchangeable.
The fog lights use 9145 LED bulbs. Front turn signals, parking lights, rear side markers, and rear turn signals use 3157A bulbs. Brake and tail lights use 3157R, while the reverse lights use 921. Other useful fitments include 168 for the license plate lights and 194NA for the front side markers.
Interior and auxiliary locations include 906 step lights, 161 ash lights, 194 glove-box lights, 578 map lights, and 579 trunk lights.