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When this light comes on, it’s important to get your vehicle inspected by a professional as soon as possible to prevent any potential damage. It’s hard to say exactly what the issue is without a proper diagnosis. Your Lexus dealer or a trusted mechanic should be able to read the specific error code from the OBD system and determine the exact cause of the problem. That being said, I should also advise you to check or have checked your battery. Sometimes a failing battery or even a cell with no visible liquid in it can cause very strange warning lights to illuminate.

Sounds like might be a brake light switch that needs adjusting. Do you brake lights also wait until you press hard to come on?

Since Lexus has made it's customer service form so cumbersome, I have reported the key fob issue to NHTSA. On the Lexus app, the 2nd Key Program Campaign is not even listed (23LJ01). The dealership cannot provide a clear answer on when this will be fixed. For my wife and me, both 70 years young (I am a disabled Army veteran), this is a potential safety and security concern.

Same here. I just bought a new RX-350 and they only gave me one key. They are supposed to send me a letter regarding the 2nd key. Did you get your 2nd key? How long did it take?