2002 Pontiac Montana--your message center lights are all on and the gauge needles dont work tried a dissconnect on the battery and check the fuses?
I just recently had this issue. Once I pressed the power button on the radio all gauges started working again. No idea why. A short in the system somewhere maybe? I dunno. It hasn't happened again in the past 1000kms. 2002 Montana AWD EXT 112,000kms