key fobs not staying programmed
Thread Starter
Cruising
Joined: Apr 2010
Posts: 10
Likes: 0
From: ohio
key fobs not staying programmed
hi,
i have a 2000 hardtop and the key fobs won't stay programmed. every weekend i have to hold down on the lock and unlock buttons on the fob to reactivate the fob but it doesn't last long. sometimes i do this 2 times a night. i've tried to reprogram both fobs using the dash method but that only lasted a couple of days. what's wrong that i could fix?
thanks
i have a 2000 hardtop and the key fobs won't stay programmed. every weekend i have to hold down on the lock and unlock buttons on the fob to reactivate the fob but it doesn't last long. sometimes i do this 2 times a night. i've tried to reprogram both fobs using the dash method but that only lasted a couple of days. what's wrong that i could fix?
thanks
Tech Contributor
Joined: Jan 2007
Posts: 19,353
Likes: 1,125
From: Dyer, IN
hi,
i have a 2000 hardtop and the key fobs won't stay programmed. every weekend i have to hold down on the lock and unlock buttons on the fob to reactivate the fob but it doesn't last long. sometimes i do this 2 times a night. i've tried to reprogram both fobs using the dash method but that only lasted a couple of days. what's wrong that i could fix?
thanks
i have a 2000 hardtop and the key fobs won't stay programmed. every weekend i have to hold down on the lock and unlock buttons on the fob to reactivate the fob but it doesn't last long. sometimes i do this 2 times a night. i've tried to reprogram both fobs using the dash method but that only lasted a couple of days. what's wrong that i could fix?
thanks
Instructor
Joined: Oct 2006
Posts: 204
Likes: 0
From: Ithaca NY
I had the same thing happen to my 2000 and started reading about it. It's a poor connection inside the fob that's causing the issue. It's possible to tear it apart and re-solder the loose connection, but it was easier for me to buy new fobs. I haven't had the problem since. GMPartsHouse has them for $61 plus shipping: http://www.gmpartshouse.com/c5partslist.html
Tech Contributor
Joined: Jan 2007
Posts: 19,353
Likes: 1,125
From: Dyer, IN
Tech Contributor
Joined: Jan 2007
Posts: 19,353
Likes: 1,125
From: Dyer, IN
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The re-solder thing is a valid repair but,,,here is something that I experienced first hand. I had the exact same symptoms.
How old is your battery and or what is the charge state of your battery. If your battery is weak or aged, it will NOT supply the proper voltage to all the C5 computer modules during extreme current loads like (CRANKING)
When you suck 300 amps out of the battery, if the battery is weak, it will allow VOLTAGE to drop LOW. Attach a DC Volt Meter to the battery terminals. During a COLD start, measure the B+ (battery Voltage during the crank cycle. If it drops below 10 VDC,,,your on the verge of causing the modules to shutdown and revert to factory settings. Check to see if your memory functions and (if you have it) HUD settings change after you start the engine.
How old is your battery and or what is the charge state of your battery. If your battery is weak or aged, it will NOT supply the proper voltage to all the C5 computer modules during extreme current loads like (CRANKING)
When you suck 300 amps out of the battery, if the battery is weak, it will allow VOLTAGE to drop LOW. Attach a DC Volt Meter to the battery terminals. During a COLD start, measure the B+ (battery Voltage during the crank cycle. If it drops below 10 VDC,,,your on the verge of causing the modules to shutdown and revert to factory settings. Check to see if your memory functions and (if you have it) HUD settings change after you start the engine.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Did you replace the battery in the remote?
You can also buy factory remotes here
http://www.originalkeyless.com/categ...3?categoryId=6
I was having a problem with my alarm going off sometimes when I opened the door. I noticed that the unlock button on my remote would not consistently unlock both doors unless I pushed it just right. I had to push the button right in the middle, or the door would not unlock. May not have been the problem, but my alarm has not gone off since I started using the other remote.
You can also buy factory remotes here
http://www.originalkeyless.com/categ...3?categoryId=6
I was having a problem with my alarm going off sometimes when I opened the door. I noticed that the unlock button on my remote would not consistently unlock both doors unless I pushed it just right. I had to push the button right in the middle, or the door would not unlock. May not have been the problem, but my alarm has not gone off since I started using the other remote.
Last edited by TEXHAWK0; Apr 17, 2010 at 06:23 PM.
Thread Starter
Cruising
Joined: Apr 2010
Posts: 10
Likes: 0
From: ohio
battery is 1 year old,..its a ac delco from the chevrolet garage. i'll check it .
i'm going to start using the spare fob,..because so far so good,it seems to be still working from the last reset
thanks
i'm going to start using the spare fob,..because so far so good,it seems to be still working from the last reset
thanks
Last edited by rigor; Apr 17, 2010 at 06:38 PM.
Safety Car
Joined: Jan 2001
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From: Boise ID
