amdaxiom

I just got a GS450H and didn't realize that the rear parking sensors were faulty. When they are on there is just a message on the screen to check sonar.

Since I doubt all 4 would fail at the same time I'm assuming a wiring harness is disconnected. Does anyone know how difficult it is to reach? I'm assuming the rear bumper has to be taken off?

bigblack06

iTrader: (20)

What year is it, if its still under warranty just bring it in and Lexus will find which one it is, if not than maybe one of the sensors is faulty not disconnected, and yeah you need to take the bumper of in any case. Not that difficult, once you get the bumper off its easy.

amdaxiom

It's 2008 GS450H, still under warranty, however, the bumper was painted on one side so lexus won't cover the repair. It's most likely just a DC'ed harness they said that the body shop forgot to connect. It'll cost 280$ to pull the bumper through Lexus and connect the harness. All sensors are not reading and the tech really hasn't seen all 4 die at the same time before and since they were not painted over and still appear to be in good shape he said it's most likely just disconnected.

It's helpful to know it requires bumper removal, might see if a body shop can remove the bumper for cheaper and get the harness connected.

bigblack06

iTrader: (20)

Yeah, than just take it off and check, I believe there are some clips under the trunk, under the black seal, and then there are some screws on the rear side wheel wells, but cant be sure double check that.

amdaxiom

Great, thanks a lot for your help, I appreciate it.