Intermittent warning lights while driving. GMC Jimmy.

rbateairbateai Member Posts: 1
edited January 2015 in GMC
When driving the warning lights on the instrument panel come on, sometimes all of them sometimes abs, belt fuel gauge fluctuates, trip mileage indicator changes or others come on. Go off within seconds, but is very disconcerting. Saw a dealer, he said it was the fuel brain, 984 to fix and may actually be the main brain, another 984. Any suggestions what it really is?
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