I have replaced batteries and tried to program my remotes several times, but after 2 minuets they fail to work. Any ideas?

 

I have similar problem. Only I can not access the retraining program on DIC.

Think the dealer screwed something up doing column lock recall.

 

yep. i had a corvette tech check mine out. its the modual reciever. its in the driver side rear fender. just pull the carpet back and you'll see the modual. that is going out you'll need to replace that.

 

You may just need a new fob.

 

For some strange reason the FOBs stop keeping their programming after about 8 years or so and exhibit the same problem you're describing. If you have a 2000 or older you most likely need to replace the FOB, replacing the battery won't help. You can get a good deal on them from GMPartsHouse.com here: http://www.gmpartshouse.com/c5partslist.html. Once you get a new FOB, follow the instructions below to program it (note this is different than retraining your already programmed FOB). Good luck!

1. Turn the ignition key to ON.

2. Clear any warning messages on the Driver Information Center (DIC) by pressing theRESET button.

3. Press the OPTIONS button on the DIC several times until the blank page is displayed, then press and hold the RESET button for two seconds.

4. When the message FOB TRAINING is displayed, push the RESET button once. The message HOLD LK + UNLK 1ST FOB in the DIC will be displayed.

5. Press and hold the LOCK and UNLOCK buttons on the transmitter simultaneously for 15 seconds.

6. When a transmitter is learned (matched), the DIC will display FOB LEARNED and then prompt you to learn the next transmitter.

7. Repeat Steps 5 and 6 for each additional transmitter.

8. Remove the key from the ignition.

The programming mode will shut off if:
You don’t program any transmitters for two minutes.
You take the key out of the ignition.
You have programmed three transmitters.

 

 

You need fobs. Cheapest available new are listed in previous post from Gene Culley. If you go back and search key fobs, you'll find dozens of threads on 2000's with your exact problem. They start failing to retain the programming. Feel free to read up on the forum, but you need the fobs.

 

I had the same problem and couldn't figure out the cause so I did what some others have done. There is a thread here on tech (they should make it a sticky). They upgraded their whole system to export FOB's, receiver and TPS. I bought mine for less than $220 shipped and just installed it yesterday. Works great! This kit works in all 97-00. If you calculate buying new FOB's/reveiver, this is the way to go. Besides, these are all NEW parts and I like the FOB's better (they look same to 01-04 FOB's). Just something to think about..........

 

The factory FOB is a POS.......I replaced mine over 4 years ago with a Clifford security system..... it has worked flawlessly. It comes with 2 FOBs and can be programmed to open the gas flap from the FOB. It has a meter that shows how much battery life is left so you will never get caught with a dead FOB. I have a hidden backup battery that keeps the system active even if your battery cable gets cut.

Another big plus is the FOB reacts over 150 feet from the car...I keep one FOB on a hook next to my bed and shotgun.... . If the alarm goes off, the FOB shows what area of your car is being violated. The FOBs never loose programming....even when replacing the battery....just keep the batteries up and they always work.

The factory FOB is junk.....GM did not do their homework on this aspect of the car....check out the Clifford system....light years ahead of GM.

 

Haven't had any problems with my 2000 yet (knock on wood) but it's good to hear some alternatives.

 

I agree with EDenney.

The fobs appear to die after 8-9 years or so. Chevrolet is unwilling to state who the manufacturer is although I know they are assembled in Mexico. Mine failed within about 3 months of each other. Re-programming does nothing and replacing the battery doesn't help either. Whatever memory chip is inside the fob, fails. The issue will later be for the C-5's when GM/Chevrolet decides to stop prodcuing them. Glad to hear the aftermarket is getting onboard with fixes.

 

Most likely the fob, especially if the Tire Pressure Air Sensors work (they share the same radio receiver).

My 1998 fob stopped, replaced and it was fine.

There was a post where a person examined the fob circuit board under a microscope, and resoldered bad connections, and it worked. If you have a microscope and these talents, try it, otherwise buy a new fob.

 

Yeah, I looked at both of my failed ones under a scope and found nothing wrong with them when they failed. I'll take a wild guess here that its a static electricity issue that fries the memory circuit but its just a guess.

 

Yeah, the key FOB's are not the best designed product for the money. Mine would act up every now and then and I cracked it open and noticed the solder joints were cracked on a couple of parts. I re-flowed the solder and cleaned the solder connections with isopropyl alcohol and have not had a problem since. I am very rough with all of my key FOB's, they are constantly dropped everyday. My case may be extreme, but I am willing to bet you have cracked solder joints causing it to loose communication with the receiver. I would learn/try to solder before I spend $100 bucks on a key FOB. You will also need an eye loop or a powerful magnifying glass to see the cracks, and usually its the biggest part on the circuit board. Oh, one more thing, remove the battery before you solder!!!!!!!!!!!!!!!!!!!!!!!!