I bought an 06' GX470 with 140k miles about 2 months ago. I was very pleased with it and even towed a race car to a 24 hours of lemons event 2 weeks ago. After towing it sounded like the drivers side exhaust manifold gasket was bad, so I took it to my fiance's dad's shop and we diagnosed a small hole in the driver's side header. We replaced it with a factory Lexus header, new gaskets and bolts. It took about a day with his shop lift, didn't remove any engine mounts and aside from a few stuck bolts, it went smoothly. After completing everything, the tick noise is gone from the drivers side. I hear a little bit from the passenger side, but I'll probably wait to fix it until I get a bit more time. All that in mind, the dash is lit up with the VSC OFF, VSC TRAC, CHECK ENGINE lights all on. As far as I can see, everything is reconnected and plugged in as it was when we took it apart. I don't have an OBD II reader to know exactly what codes it's throwing out, but I was wondering if there is a reset button anywhere that I can just get the system to recalibrate and maybe turn off the lights?

 

Nevermind... I just went outside to move my GX so that my fiance could park in the driveway and miraculously the dash lights turned off. Yay, but sorry for the post.

 

This combination is often seen when you still have the original gas cap on the vehicle. The o-ring decays over time and causes an evap leak. New cap is around $28 at the dealer, and some people have been able to replace just the o-ring (I don't have the p/n)

Chip H.