I've been reading this site for over a year now and I appreciate all of the effort and input that everyone has shared. I'm not sure if this has been discussed so please bare with me. I own a 2014 LS 460L. Really a great car. The problem that I am having is the anti lock break light, BSM light and PCS light will come on and off periodically. When they are on the dealer maintenance message appears and the chime rings. The cruise control disengages and messages dealer service needed. I've had my car back to the dealership 3 times and when they do the diagnostic test the computer shows no fault messages. I've had 1 wheel speed sensor replaced. Other repairs have been lower control arms and sway bar bushings which I know have nothing to do with this problem but I list for background information. I have had the dealership drive the car but they have not been able to duplicate the condition. I'll try to post a picture of the dashboard lights.

 

I've been reading this site for over a year now and I appreciate all of the effort and input that everyone has shared. I'm not sure if this has been discussed so please bare with me. I own a 2014 LS 460L. Really a great car. The problem that I am having is the anti lock break light, BSM light and PCS light will come on and off periodically. When they are on the dealer maintenance message appears and the chime rings. The cruise control disengages and messages dealer service needed. I've had my car back to the dealership 3 times and when they do the diagnostic test the computer shows no fault messages. I've had 1 wheel speed sensor replaced. Other repairs have been lower control arms and sway bar bushings which I know have nothing to do with this problem but I list for background information. I have had the dealership drive the car but they have not been able to duplicate the condition. I'll try to post a picture of the dashboard lights.

 

Get error codes, otherwise it is a waste of time.

 

Having the battery tested, or replacing it if it is 3 years old or older would not be the wrong thing to do.

 

Very mysterious there are no codes. I agree that battery test and connections should be checked as well. It's rainy season in FL, perhaps water has affected some connections. That will take time and patience to check connectors.