Our 2003 GX470 has problems with riding very hard in rear as though the truck is bucking/bouncing with no suspension. Often, when this occurs the yellow off light flashes below the Normal height setting in center of dashboard. It comes and goes and is very unpleasant. Had in twice to dealer and they can't find the cause.

Has anyone else experienced this rough/ harsh ride issue? I believe the entire air suspension system may not be operating too ... contributing to the hard bouncy ride. Please advise if anyone has experienced similar problems, the potential cause, and importantly the remedy. Thanks .
Spyderman

 

Hello how are you? I had the same problem in my LX470 the front was bouncing and the car in the front was higher than the back which is the opposite side than yours but same problem. It was found to be the height sensor if you look under the truck you might be able to see it. The height sensor costs about 1800.