What could cause all the warning lights to come on and off along with the gauges for rpm and mph ?
When the engine dies this occurs or the engines computer loses power for a moment such as an intermittent open circuit.
Dodge Warning Lights on Dash
Testing the operation of the warning lights on your dash is easy. All you need to do is turn the ignition key to the “ON” position and they should illuminate. Generally the lights will only illuminate when there is an issue that needs some attention. However, when the check engine light is flashing, the engine should be turned off as soon as possible to ensure no internal engine damage has occurred. A steady light is fine and driving will not cause damage.