I've been using this site for many years, just joined.
My GX has the VSC and stability control on the dash with out a check engine code. I've been searching the web and everything I look up has check engine code accept try my gas cap. I hooked up my computer to ecu and noting is coming up, no codes to read. Does anybody have any suggestions that would help me before I have to take her to Lexus and spend an obscene amount of money.
Just a side bar i do all of my own work to my truck. I have raised it 3.5" (that was a nightmare my shocks had to be grinded off the lower mounts) but I do all the work myself.

 

Replace the gas cap first with a new OEM one. They're like $30 or so.
p/n is 77300-47010

Chip H.

 

This could be a number of things. But over the years it has happened to me twice. First was a burnt out exterior mirror motor. Yes you read that right. Second time was brake switch under dash next to brake pedal. But with this one you’d also get ABS light.