Brake Lights staying on (09GX)

[OverlandLexusTN]

All three brake lights on rear are stuck on unless I pull he 10amp fuse under hood. I've pulled the plug on brake light switch under pedal and they still stay on. I pulled the whole switch and tried to fiddle with it. Still they stay on.

Any ideas? This is maddening.

 

[OverlandLexusTN]

Does anyone know where the tail lamp relay is?!

 

[langsen]

I think the relay is under the dash on the driver side. Have you checked your trailer socket to see if it's shorted out?

 

[OverlandLexusTN]

I think the relay is under the dash on the driver side. Have you checked your trailer socket to see if it's shorted out?

So I solved the issue late last night after speaking with a Lexus tech through a local cruisers FB group. The GX doesn't have a "tail lamp relay" on it's own. The tail lamp relay is tied in with the DAC relay. I had not considered checking that one. Pulled the ACC fuse to test in the DAC slot and lights operated normally.