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If both remotes light up and don't work even right next to the car, the car and remotes may need to be paired again. I found where someone mentioned disconnecting the car batter for more than one minute but less than five and seeing if it works again. If not, you may have to get it checked at a dealer. Most of these fobs are only programable with special tools at the dealer. I've purchased nissan oem fobs new on ebay, but still had to pay the local dealer to get them to work.
Depending on the specification of your vehicle, the FOB generally serves one (or both) of the following functions:
1) Communicate with the vehicle's Keyless Entry system (operates central locking). 2) When inserted into the ignition, the transponder within the key will communicate with the vehicle's Body computer (BEM) to validate entry, before disengaging the immobilizer - allowing the vehicle to start.
When the key fob fails, you may lose functionality of the above systems.
Keyless entry failure - usually due to flat battery in the fob. Reprogramming of keyless entry can be done without dealership assistance.
Transponder/Immobilizer failure - this requires the key fob to be re-programmed by your local dealership.
Well, you basically have only 3 choices: 1. Pay the fee at the dealership 2. Purchase the high-dollar equipment that is required to perform the programming procedure 3. Forget about adding another key fob to tor vehicle.
TECHNICAL SERVICE BULLETIN
Group 90 - ELECTRICAL
Date October, 2003
Model Elantra 2001-2004, Santa Fe 2001-2004, Sonata 2002-2004, Tiburon 2003-2004, XG(NNN) NNN-NNNNand XG(NNN) NNN-NNNN2004
Subject SECURITY SYSTEM KEYLESS ADAPTER CABLE
This bulletin supersedes TSB # XXXXX DESCRIPTION: The security system keyless adapter cable (SPX/Kent-Moore P/N 09900-21300) is a special service tool (SST) that is used for programming new keyless entry remote transmitters to the factory security systems. The keyless adapter is used in conjunction with the Hi-Scan Pro (with Hi-Scan SOL Pro Software Version 09-29-03 or newer) and Data Link Connector (DLC) Cable. SERVICE INFORMATION: The keyless adapter cable can be used on the following vehicles: ^ 2001 -2004 Elantra ^ 2001-2004 SantaFe ^ 2002 - 2004 Sonata
Yes the 03 and up sorento has a keyless remote entry, You do not need to reset the ECU, you however need to reprogram the remote trasmitter to your car so they communicate, otherwise it will never work if you do not program it. You will need to take this to a kia dealership with the remote transmitter. They may or may not charge you for a fee. However I did had a remote, and it became damaged when my kid drop it in the fish tank. I was able to get it done at the dealship, 35 for the remote, and 50 for service fee. I did however found some link referal to manually do it yourself, Please check this forum out http://www.kia-forums.com/2003-2010-sorento-forum/34549-remote-keyless-entry.html. For me, I did not bother, because I did not want to take the chance to mess up something else.
the mechanic should be able to let you know what is the problem and what it takes to get it to work.
if the car was not equipted with the keyless entry and the dealer tried to sell you the remotes then you need to return the remotes.
by running the VIN on their computer, the dealer can tell you if you have it or not.
if I was you, I would just get a remote starting system from best buy or sam's then either have them install or have a good mechanic to install the system. it may be cheaper too!