Lexus LC System Readiness Error

Interesting. I've got an LC too, and something similar happened last year after a car diagnostics. I kept getting the same error, even though everything seemed normal. Was it related to the exhaust system check?

That's the weird thing! I'm not getting any specific codes related to the exhaust system, just the generic 'System readiness check incomplete' message. Were you able to clear it yourself, or did you have to take it to a shop? What kind of diagnostics did you do? Just a basic scan for error codes?

I tried everything I could think of to clear it myself, but no luck. Eventually, I took it to the workshop. They told me it was something to do with the ECU not fully resetting after the OBD2 read. They cleared it within 5 minutes. Felt like I was paying them to plug it in and press a button. I did a complete car diagnostics and vehicle inspection. I think you should be fine.

Thanks for the insight! Sounds like I'm dealing with the same issue. Good to know it's likely a quick fix at the shop. Appreciate you sharing your experience! I went to the shop and got it fixed, they just reset the error memory. Cost 0€! Unbelievable!