Question about Lexus Cars & Trucks
i have the same problem but mine is the sensor that is under the dash that is faulty so i had them disable it untill i can get a part that they need to order so i would have your dealer check the sensor .. if it is under warranty they will replace it for free
Posted on Mar 08, 2009
I have a 2001 C240 with the same issue. I removed the positive battery cable from the battery and kept it off for 30 seconds then replaced it. Everything was reset and the key worked.
Posted on Feb 10, 2010
unlock the door then press the lock button on remote and hold down for 20/30 secs.manual does say hold button.....
Posted on Mar 02, 2010
Insert key into door barrel or ignition lock and turn key, whilst doing this press the unlock/lock button, the led on the dash should flash to indicate this has initialised the key to the car, then remove key and test operation of remote. If this fails then a new remote plus coding to the car by your dealership is needed
Posted on Apr 29, 2010
SOURCE: 2003 Monte Carlo SS, FOBS
did you think to check the remote batteries. change them. if thats not the issue ....then sounds like the power is not getting full power from battery of vehicle. clean cables and try again. Some vehicles have a way that you have to use to reset automatic doors that open by remotes and such so if any of this helps let me know. Certain ones have to be reset by a diagnostic scan tool.
Posted on May 02, 2014
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