How to Program a Lexus Ignition Key
- 1). Close all of the doors and windows on your car and lock and unlock the driver's side door with your key before entering.
- 2). Insert your first ignition key into the ignition and wait for the security light to turn on. Leave the key in the ignition for five seconds and remove it.
- 3). Repeat the last step with any additional keys---up to three keys---and wait 30 seconds after removing the last key for the programming sequence to end. You can then remove the key from the ignition.
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