low voltage relay 2015 prostar isx

[boondocker]

Hello all
My power saving relay kicked out. I usually get up and restart the truck to charge the batteries and get some warmth. Turned key no start no cluster lamps or info center. Kicked off battery main switch for 15 min. Still nothing, checked fuses and relays swapping around in dash panel ,nothing. Sitting there scratching my head the key is on and out of o where the panel lights up and wala it back on. Any suggestions where to look for the power relay for the instrument cluster. Thanks Steve Was also showing 11.8 volts on my inverter readout