victoriahimmel1

Lexus UX Brake Light Failure

Hey, I've got a weird brake light issue with my 2023 Lexus UX gasoline. 242314 km on the clock. I'm getting a brake light failure and an error message. OBD-II shows an error stored. I'm thinking it might be the brake light switch. Anyone seen this before?

A 2023 Lexus UX owner experienced a consistent brake light failure and error message, suspecting the brake light switch as the cause. Another person suggested checking the brake pedal return spring, but the issue was ultimately traced to improperly installed aftermarket floor mats obstructing the brake pedal's full return. Removing the obstruction resolved the problem without any cost.

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4 comment(s)

I had something similar on my UX recently. Is it happening all the time, or just now and then? Have you had a look at the brake pedal return spring? A weak spring can sometimes act like a bad switch.

Thanks! It's happening consistently. I didn't think about the return spring. What fixed it for you?

Mine was the switch itself. Like a light switch wearing out in your house. If you're comfortable, test the switch with a multimeter. Otherwise, a shop might be the way to go. Good luck!

Thanks for the confirmation and the advice. Turns out it was the brake light switch, but because I messed up installing aftermarket floor mats. They stopped the brake pedal from fully returning. No money spent, just removed the obstruction. Thanks again!

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LEXUS

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