The green dashboard cluster illumination becomes very dim (but stays on) when I turn on the ignition, or start the car. (mechanics.stackexchange.com)
Here's a bonus oddity: If I turn the lights on without ignition, and someone closes or opens a door, then the green dashboard cluster illumination temporarily dims and then, after half a second, returns to being fully illuminated. (mechanics.stackexchange.com)
«Samsung Granted Design Patents for an In - Vehicle Dashboard Cluster, a Series of New Tablet User Interfaces & More Main HP Sells their Palm Patent Portfolio to Qualcomm» (patentlymobile.com)