ssfromsd Posted March 19, 2006 Report Share Posted March 19, 2006 So i just got out my parents c5 convertable a couple weeks ago and the key fob is dead so today i got a new battery for it and it still doesnt work... Does it have to be reprogrammed or something? Thought someone would know because it is so close to the SS's setup. Thanks for your help Quote Link to comment Share on other sites More sharing options...
ThePDB Posted March 19, 2006 Report Share Posted March 19, 2006 So i just got out my parents c5 convertable a couple weeks ago and the key fob is dead so today i got a new battery for it and it still doesnt work... Does it have to be reprogrammed or something? Thought someone would know because it is so close to the SS's setup. Thanks for your help <{POST_SNAPBACK}> One of mine for my sss did that a while back. I tried a new battery and everything. After a while I forgot about it. Just the other day I was too lazy to go in my room and get my main set of keys, so I tried the old ones. For some reason after all this time it decided to work again. I know you can reprogram them... I'm not sure if the process is the same for c5's though. Wish I could help more. Quote Link to comment Share on other sites More sharing options...
Ldogss Posted March 19, 2006 Report Share Posted March 19, 2006 my one remote chooses when it will work and when it wont...might just need to reprogram Quote Link to comment Share on other sites More sharing options...
Jonmalibuss Posted March 19, 2006 Report Share Posted March 19, 2006 If you wanna give it a shot here is the procedures for the silverado: eTransmitter Programming silverado: Important Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. There are 3 methods for programming transmitters which are listed below as method 1-3. Up to four transmitters may be programmed to the passenger door module (PDM). Each programmed transmitter is given a position of #1-#4 in the PDM memory. Method 1 - No Tools Required, Program All Transmitters Important All transmitters which are to be recognized by the PDM must be programmed in a single programming sequence. When using this program method, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter. The order in which the transmitters are programmed will determine its numbering position within the PDM memory. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number stamped on the transmitter case is for reference only: #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available. Close all the vehicle doors. Insert the ignition key into the ignition lock cylinder. Press and hold the door unlock switch. While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF. Release the door unlock switch. The doors will lock and unlock to confirm the program mode. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter. Repeat the previous step to program up to four transmitters. Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter programming mode. Operate the transmitter functions in order to verify correct system operation. Quote Link to comment Share on other sites More sharing options...
mcwarren Posted March 19, 2006 Report Share Posted March 19, 2006 There are a few possible problems........try this first. From GM Service Information: The keyless entry system uses rolling code technology. Rolling code technology prevents anyone from recording the message sent from the transmitter and using the message in order to gain entry to the vehicle. The term "rolling code" refers to the way that the keyless entry system sends and receives the signals. The transmitter sends the signal in a different order each time. The transmitter and the RCDLR are synchronized to the appropriate order. If a programmed transmitter sends a signal that is not in the order that the RCDLR expects, then the keyless entry system will not function. Preform the following procedure if a transmitter cannot communicate or becomes out of synchronization with the receiver: Move a programmed transmitter within range. Press the LOCK and UNLOCK buttons on the transmitter simultaneously for 7 seconds. The horn will chirp once when the transmitter is synchronized. Repeat this procedure for each additional transmitter if needed. Quote Link to comment Share on other sites More sharing options...
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