For the 2006 Jeep Grand Cherokee, the low-beam headlight uses a 9006 bulb, while the high beam uses a 9005. The supplied fitment data does not identify a projector versus non-projector headlight variation, so use the listed sizes for the applicable factory headlamp configuration.
The fog lights are listed for a 9145 LED bulb. Other useful exterior replacements include 3157A bulbs for the front turn signals, parking lights, and rear turn signals; 3157R for the brake and tail lights; and 3157 for the reverse lights. The front side marker uses 194NA, while the license plate light uses 168.
Interior and utility locations include 194 for the glove box and map lights, 2825 for the courtesy light, 214-2 for the trunk, 906 for the step light, and 161 for the ash light.