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Key Fob Issue

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Old Jan 24, 2019 | 11:10 AM
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Default Key Fob Issue

My 2000 C5 came with two key fob's but one of them appears to keep losing memory. I've replaced the battery and programmed it through the DIC on screen menu's, and it works for a few days and then none of the buttons will work (lock/unlock, etc.)

Any help would be appreciated

RPG
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Old Jan 24, 2019 | 11:59 AM
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Originally Posted by RPGR90s
My 2000 C5 came with two key fob's but one of them appears to keep losing memory. I've replaced the battery and programmed it through the DIC on screen menu's, and it works for a few days and then none of the buttons will work (lock/unlock, etc.)

Any help would be appreciated

RPG
This is gonna be a dumb question but i have to ask.
Does both FOBS have the same part # and are they labeled 1 & 2 ?
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Old Jan 24, 2019 | 12:00 PM
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They are the same. But they are not labeled 1 and 2. Only in the computer are they designated key fob 1 and key fob 2
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Old Jan 24, 2019 | 12:14 PM
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Originally Posted by Robrote
They are the same. But they are not labeled 1 and 2. Only in the computer are they designated key fob 1 and key fob 2
Odd, I believe ya brother but mine have an embossed 1 & 2


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Old Jan 24, 2019 | 12:19 PM
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That's odd mine do not have that. They're for a 2000. Not sure if they've been replaced over the years.

Last edited by Robrote; Jan 24, 2019 at 01:48 PM.
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Old Jan 24, 2019 | 12:24 PM
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Originally Posted by SG Lou
This is gonna be a dumb question but i have to ask.
Does both FOBS have the same part # and are they labeled 1 & 2 ?
Certainly not a dumb question. I will look this evening after work.
Thanks,
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Old Jan 24, 2019 | 12:25 PM
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Originally Posted by Robrote
Not sure if they've been replaced over the years.
Yours or mine ? I know mine are original to the car and have never been replaced. I got an 04

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Old Jan 24, 2019 | 12:43 PM
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Originally Posted by SG Lou
Yours or mine ? I know mine are original to the car and have never been replaced. I got an 04
I was speaking about mine. Now I'm curious.
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Old Jan 24, 2019 | 01:49 PM
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Originally Posted by Robrote
I was speaking about mine. Now I'm curious.
A little research and it looks like after 2001 the FOBs were numbered #1 and #2. (Based on photos of the backs of pre owned 2001- 2004 FOBs for sale on the infamous auction site. Other members will likely chime in to confirm.

The 99's didn't have numbers. Well mine didn't, nor both of my brothers 99s didn't.

Last edited by Johnny Hardcore; Jan 24, 2019 at 04:23 PM.
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Old Jan 24, 2019 | 05:42 PM
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My 98 FOB keeps loosing memory also. To reset it, I just aim it at the passenger footwell and hold both buttons down for 15 seconds or more, The horn will beep and its reset til next time. I have no idea what causes it to loose memory. Good car battery and a good fob battery. Wore out maybe???
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Old Jan 24, 2019 | 06:39 PM
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My 2000's don't have numbers either.
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Old Jan 24, 2019 | 08:15 PM
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Just checked mine and neither have 1 or 2 on them.

Here's what's on the back of both.
GM 10432147
Canada 218 102 108
Model/FCC ID AB00216T

Like I said, one works flawlessly and the other works for awhile before failing.

RPG
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Old Jan 25, 2019 | 09:05 AM
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I reset the one unit last night (holding the lock/unlock) until the horn blew and it's working now. We'll see for how long.

I'm sure I did something wrong in previous steps.

RPG
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Old Jan 25, 2019 | 11:49 AM
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Originally Posted by RPGR90s
I reset the one unit last night (holding the lock/unlock) until the horn blew and it's working now. We'll see for how long.

I'm sure I did something wrong in previous steps.

RPG
Cool
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Old Jan 27, 2019 | 12:22 AM
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There is a thread on this forum that explains a cold solder joint on a couple of the chips in the fob . If you hit them with a soldering iron and remelt
the solder it will retain it's memory again
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Old Jan 27, 2019 | 12:21 PM
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Old Mar 28, 2019 | 10:45 AM
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My problem is back. The 2nd remote can be programmed and works for about 30 min and then nothing.

I've tried the solder flow trick and have replace the battery a couple of times now. I think I'll just get a new/used one.

Can someone recommend a retailer?

The numbers on mine are:

GM 10432147
CANADA 218 102 108
MODEL/FCC ID AB00216T
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Old Mar 28, 2019 | 09:21 PM
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I have a '98 and upgraded the receiver to a 2003. I then bought 2 new remotes on Ebay for $10.00. They were programmed and have worked flawlessly for over a year.

GOOD LUCK!
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Old Mar 30, 2019 | 12:30 PM
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amazon has fobs 16 bucks
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Old Mar 30, 2019 | 07:13 PM
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Originally Posted by bc6152
I have a '98 and upgraded the receiver to a 2003. I then bought 2 new remotes on Ebay for $10.00. They were programmed and have worked flawlessly for over a year.

GOOD LUCK!
Yeap I did this too. Got tired of the short range and I also tried the re solder and it still would lose memory
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