Smart Key And Vehicle Won't Talk To Each Other.

[Flyballpaddy]

My car is not recognising the smart key which had a new Battery a few weeks ago, it will not open the doors or turn in the ignition even though it did last week after being left for a month unused. I have tried resetting by pressing the door button at the same time as the key button but to no avail. Does anyone have any idea of how I may resolve this please? Cheers.

P.S., I'm not keen on Lexus' idea of the AA trailering there for a ride on their diagnostic machine @ £50 + VAT.

[brendangeorge]

Do you have any working keys? If you do you can reprogramme a key that does not work - here is the thread where the answer is http://www.lexusownersclub.co.uk/forum/index.php?showtopic=45917

I saw this somewhere so it also may help. - I think it was ehow.

1. 
   
   • 1
     Close all of the doors and windows for your Lexus, then lock and unlock the driver's side door with your key.
     
   • 2
     Enter the car through the driver's door and close the door behind you.
     
   • 3
     Insert your key into the ignition and leave it there until the security light turns on.
     
   • 4
     Leave the key in the ignition for 15 seconds after the light turns on and press the brake pedal five times.
     
   • 5
     Remove the key from the ignition and insert it again to start the car with the smart key.
     

Good luck

Bren

[lexusdaduk]

Check your manual i was looking through it the other day and i read something about smart turning off after 10 days to preserve the battery's in both fob and on car.