Please I need help on my lexus Rx 350, 2010

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Hi, my lexus Rx 350, 2010, I took out the battery and luck the cat with manual key and travel for a week, when I came back, the manual key could not open the door anymore, I managed to open the bonnet and fix the battery, but remote key could not open the door too. I changed the remote battery all the same, this is strange to me. Manual key and remote could not open the door. Please do anyone have an idea on this? Is there anyway I can fix this myself? Or is there anyway I can open my car without keys, please help thank you
 

Sulu

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Are you saying that you cannot unlock and open the driver's door manually, with the hard, physical key in the key slot in the door? Have you tried the key in the other door (if there is a key slot in the passenger-side door)?

If this is what you are describing, I don't know what the problem is or what the solution is, other than calling a locksmith.

I can understand if the remote lock/unlock buttons do not work after you disconnected the battery: When you disconnect the battery, the computers (including central locking) are reset, and you have to reprogram the remote lock/unlock feature so that your car can recognize the key(s) again.
 
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Both the remote key and manual key not working. The car door is luck and non of this keys can open it.
 

Sulu

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If the manual key does not unlock the car, I guess you need to call in a locksmith, then you need to drive it to the dealer to re-program the remote key.