Sorry if I posted this in wrong spot. I have an 08' silverado. My service tire monitor system light has been coming off and on while driving. Then the last couple of days it comes on with the service airbag light and then all my gauges drop to zero. The gauges go back to normal after a couple of seconds. The airbag light goes off a little bit later and then the tire monitor light. There is no change in driving performance when this happens. I'm not sure if it is related but my stereo also quit working before all this started. I would appreciate any help.