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have you tried to press/hold lock button for 30 secs.
the code changes everytime you use the remote so that only your remote unlocks your car,not everybody elses.the key has a code inbuilt into it so the car will only start with your key...(this is dealer programmable)
Check the remote battery or replace. Check all fuses. If you need to reprogram, try this.
key not in ignition. driver door open-others closed driver door unlocked
1-insert and remove key from ignition two times
2-close and open driver door two times
3-insert and remove key once from ign.
4-close and open drvr door twice
5-insert key into ign.,then close driver door
6-turn key to on (not start) then off, twice this is rewrite mode,have all remotes to reprogram it will clear any lost remotes.
7-remove key from ignition,the door locks should cycle twice.if not start over.it may take a few tries.
8-press lock/unlock together and hold for a second
9-release,and press lock on remote,the door locks will cycle confirming program.continue to do other remotes you have,steps 8 and 9.if only one in possesion,you are done.
to end mode open door or insert key into ig.you can do up to 4 remotes.read this a couple of times to get the sequence down.there are time restraints,but if you go in order it will work.do not wait more than a second b/t each step and you will be ok.i know from experience that you can do this as fast as you can and it will enter mode.if steps out of order or you wait to long it wont.print this and have in lap,read ahead of what you are doing.good luck
try putting key in ignition turn to on position
then press lock & unlock several times slowly if door locks cycle up & down after 1st press it lost code and is now resynconised.
now try remote with all doors closed and key out of ignition
if this dont work need to register key(program)back into system which dealer must do with Tech2 if round heart shapped remote
Disconnect the battery from your car (negative cable only) overnight. Make sure you have your radio reset code before doing so.
Then reconnect after 10 hours, and make sure you have remote handy as alarm may go off. Then if that doesnt fix it, go to driver door, then insert master key, pull up on handle first all the way and hold it. Then turn the key slowly all the way so the doors unlock and continue turning the key. This will reset the central locking system as yours may have gotton stuck. then remove key let go of handle, open door and try to lock and unlock doors from switch inside car.
Then try remote. It should work, this is what the dealer will do and charge you about $350...if it doesnt work order a new remote b/c yours may have become damaged by liquid or dropping?
My first question is has it been programed? This is a simple process of cycleing the key from off to on 7 times with leaveing the key in the on postions the 7th time (without starting the car). The door locks should cycle down then up showing you are in program mode. Then press any button on the remote and then the secound remote. The door locks will cycle eachtime it reads a new remote. Then turn off your key and the locks will cycle showsing your out of program mode. then try your remote. If this doesnt work i would have to ask you to call your local dealer to make sure you have the correct remotes. These key FOBs (remote) are not normally interchangeable from one car to the next.
Let me know if this helps