2003 Avalanche Instrument Panel problems

I have a 2WD 2003 Avalanche. Recently it started acting up. Specifically, it starts no problem, but when it's cold, the instrument panel cluster will not come on (i.e. no digital odometer, gauges, tach, etc...). I still have lights, radio, fan, and can drive no problem. After a few minutes a buzzer will go off and the cluster will come on.

Thoughts?

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mprefo
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