nklemens

I have a 2000 Conv. This can happen in 8 hours or a week or 20 days.

The fobs (both) lose programming, display of hud resets to default etc.Radio has not lost it's station.

Battery volts before start is 11.8 and 13.8-14.2 on the road.

I thought it was my ipod drawing the car too low, but I took it out. The other day the fobs lost programming in 10 hours while at work. Sometimes a week, other 3 days. Is there a battery in the bcm that could be bad? Car has 39k miles.

Trip computer and fuel history stays. Reprogram and its back to normal until the next time.

65GGvert

If you're measuring battery voltage at the battery with a meter, that's too low. When you crank the car the voltage will drop below the minimum and cause your HUD to reset to default (oil pressure) and other things also. I'm afraid the problem on the 2000 fobs is the fobs themselves. It's a very common problem. If you search fob loses program, you'll be surprised by how many are 2000's. There's a thread titled legendary problem solved that explains how to solder which connections and has fixed some of the fobs. Others have not and had to be replaced, and the 2000 fobs have become very rare. Don't buy used or you'll be in the same shape as now. I'd try a good battery in the car first and then work on the fobs if you still have the problem.

rebelheart

Time for a new battery(if you do not have a draw)

Bill Curlee

Have the battery professionally checked out and make sure that the CCA and Reserve capacity is SAT!

My guess,, like the above recommendations,, it s the battery.

BC

gotz06?

nklemens

Battery did it. Haven't lost a memory since. The only strange thing was sitting for 20 minutes dead after the new battery was installed. Then finally it started. Something security related I guess.

BigGun

There is no security feature that would do that. You probably have a bad or loose connection.

nklemens

Security flashed the whole time. The dash lit up. The starter would not engage and security flashed on the dash. The starter was immobilized. After 15 minutes I pulled the fuse for the bcm then 15 minutes later it started like normal.

My dad remembers having the same issue 7 years ago when the last battery was swapped.

Anyway, I am not concerned. In 6 years when I need a new one, I will be sitting in my driveway or a Chevy dealers lot. Just In Case. It was a long 30 minutes in an autozone parking lot hoping I would not need a tow.

Thanks for the reply. The great thing is all of my issues went away with the battery swap. The fobs always work, the heads up does not reset and all my settings stay.

It's almost time to put it away for the winter. i have been driving daily for the past two weeks. I will miss it for sure.

28 mpg for my 8 mile commute is pretty nice rather than 13 with my burb.