About 3 out of 5 times I drive my truck 00 silverado, It may do it on startup, or after driving a while, but the gas gauge & temp gauge go dead.The dic flashes the battery, check gauges, and maybe security as well. It also seems the abs light come on to. It may come back on after I drive a while, and everything still runs and starts fine. I don't know if its something in the ignition switch or what but those are the only things that quit working. Thanks for any help.