NC_John
Full Access Member
Yesterday morning my gauge cluster went funny. All my gauges were reading way too high and didn't reset when I keyed off. See attached pic. This is with the truck idling with the transmission in park. I had to disconnect the battery for a second to rezero them. Then they were fine.
09 tahoe LTZ - 138k miles.
Temp was 4 degrees and truck was still cold (one remote start cycle but hadn't left the neighborhood yet and everything in the cabin/interior was still ice cold)
Gauges were working, though nearly pegged, tach and speedo were tracking, but reading way too high.
No idiot lights, no MIL, nothing. Truck ran perfect, all other electrical/electronic functions were fine.
I asked a GM tech buddy but he hasn't seen this on this generation cluster. His guess was the cluster might be going bad or there was a ground issue. I've only had the truck for four or five months but it has a duralast brand battery of unknown age so I am suspecting that. At this very low temperature maybe the battery is struggling and the voltage issue is pissing off the cluster. The truck seems to be starting ok (though i do remote start it from inside the house this time of year). There is no problem with the cluster the rest of day when the sun comes up and its slightly warmer. Since ALL the gauges did it I don't think a servo is going bad - there is no way they would all go at once.
Anybody else seen this? A forum and google search came up with nothing.
Thanks.
09 tahoe LTZ - 138k miles.
Temp was 4 degrees and truck was still cold (one remote start cycle but hadn't left the neighborhood yet and everything in the cabin/interior was still ice cold)
Gauges were working, though nearly pegged, tach and speedo were tracking, but reading way too high.
No idiot lights, no MIL, nothing. Truck ran perfect, all other electrical/electronic functions were fine.
I asked a GM tech buddy but he hasn't seen this on this generation cluster. His guess was the cluster might be going bad or there was a ground issue. I've only had the truck for four or five months but it has a duralast brand battery of unknown age so I am suspecting that. At this very low temperature maybe the battery is struggling and the voltage issue is pissing off the cluster. The truck seems to be starting ok (though i do remote start it from inside the house this time of year). There is no problem with the cluster the rest of day when the sun comes up and its slightly warmer. Since ALL the gauges did it I don't think a servo is going bad - there is no way they would all go at once.
Anybody else seen this? A forum and google search came up with nothing.
Thanks.
