airmaxon1

So on occasion, when I turn my car on after sitting, the trip odometer resets and the gauges will all shoot up to the top, come back down then go to normal. But then sometimes if the cars only sitting for half hour maybe and I start again, everythings normal? what is going on here?

2001NBMZ28

Is it a '99? Was a common problem with low battery voltage. GM issued a TSB on it to replace the gauge cluster - but a good battery makes it go away.

airmaxon1

yeah it is a 99'. a TSB, really? How would I find out about that? but replacing the battery is a fix too, guess I gotta go with that then

2001NBMZ28

TSB# was 99-08-49-009 about trip odo resetting, doesn't mention the gauges sweep, but usually happened at the same time. If the battery is a few years old bring it somewhere for a free load test.

airmaxon1

alright, i plan on doing that tomorrow. if the battery does the trick, much easier than the gauges. thanks for the help.

JamesR311

iTrader: (6)

does that mean I could go get a new cluster now or is it too late? Mine was doing that but I got a new battery that stopped the flickering lights and a slew of other problems previously blamed on the alternator.

bigcraig987

Work for TSBs is only free for vehicles still under warranty, so you could get a new one but you would have to pay for it

SSucese

iTrader: (1)

My 99 had the same problem many years ago, every time the temp dropped below freezing it would reset. Fortuanatly i was still under warranty as they swapped my cluster out for me.