Key FOB trouble
Thread Starter
Heel & Toe
Joined: Nov 2004
Posts: 19
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Key FOB trouble
Lately i have been experirncing problems with the key fob for my C5. Every time i get near my car, the fob locks and unlocks the doors repeadtedly. The fob is not in passive mode, and i have reset the alarm system on the computer many times with no luck. I even replaced the fob battery and that didnt didn't seem to help. I'm wondering if the key fob has gone bad, or if my security system has a glitch in it. Do you guys have any suggestions? Thanks!
Team Owner
Joined: Aug 2002
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Cruise-In 11 Veteran
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St. Jude Donor '05-'06-'07-'10
It could be just as simple as cycling the passive switch on the fob a couple of times making sure that you engage the detent. This has worked for some. If not:
I thought it would be a good idea for all the new members/owners that bought a used car and may not have received an owners manual to document this procedure. This is right from the owners manual for my 1997 Coupe.
The manual for my 97 says
"Try to resynchronize the transmitter by pressing and holding the LOCK and UNLOCK buttons for seven seconds when standing next to the vehicle." This will attempt to resynchronize the security code in your RFA key fob transmitter.
When resynchronization is achieved the horn will chirp. If attempts to resynchronize your transmitter to the vehicle are not successful, you man need to match the transmitter to the vehicle.
To match the transmitter to your vehicle:
1. Turn the ingnition key to the ON position
2. Clear any warning messages on the Driver Information Center (DIC) by pressing the RESET 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 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, 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 programmer 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.
Hope this helps.
Paul
I thought it would be a good idea for all the new members/owners that bought a used car and may not have received an owners manual to document this procedure. This is right from the owners manual for my 1997 Coupe.
The manual for my 97 says
"Try to resynchronize the transmitter by pressing and holding the LOCK and UNLOCK buttons for seven seconds when standing next to the vehicle." This will attempt to resynchronize the security code in your RFA key fob transmitter.
When resynchronization is achieved the horn will chirp. If attempts to resynchronize your transmitter to the vehicle are not successful, you man need to match the transmitter to the vehicle.
To match the transmitter to your vehicle:
1. Turn the ingnition key to the ON position
2. Clear any warning messages on the Driver Information Center (DIC) by pressing the RESET 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 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, 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 programmer 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.
Hope this helps.
Paul
