Why does Eyesight system go offline shortly after turning on vehicle?

So my Eyesight system goes offline about 3min after ignition. This will happen even if I don't use Eyesight for cruise control driving, just leaving the system to detect lanes or crash avoidance. If I do use Eyesight cruise control it will work fine for those first three minutes. Doesn't seem to me a calibration issue, cause when its working before time it works just fine. Is there a fuse or something?