Oil pressure, coolant temp, and voltage guages work intermittently

On my 03 Silverado SS, the oil pressure, coolant temp, and voltage guages sometimes do not work. If I turn the ignition off, and restart, it will usually make them work correctly. Any ideas?

On my 03 Silverado SS, the oil pressure, coolant temp, and voltage guages sometimes do not work. If I turn the ignition off, and restart, it will usually make them work correctly. Any ideas?

since this is only when the ignition switch is in operation I would suspect the switch..when it fails rather than moving the key locate the switch and give it a tap..if it then corrects the issue I would replace the switch..