you didn't disconnect the battery when bleeding the brakes, that triggered all kind of errors because of the ECB system. you might need to get to dealership or someone with the scan tools to clear the codes

 

I had the same issue with all the lights coming on.. I removed the driver side caliper and had to bleed the brake line..same issue happen, the driver side caliper wasn't working and the passenger side was locking on me. I bleed the system as usual... went to my friend with a snap on scanner and removed the codes.. Everything started working fine..so you just need to clear out the codes to get everything back to normal.. just thought of adding my 2 cents of info..

 

So for 08 gs350, other than disconnecting the battery, I can just bleed the brake normally without doing any other special procedures mentioned in this thread right?

 

Here you go... this works if the lights come on after a pad change.. I am doing mine Saturday so I wanted to find the thread before hand so I can be prepared... It happens everytime to me.

https://www.clublexus.com/forums/gs-...ecb-light.html