AfterDeath

Hey all - so with all of the snow we've been having in the north east this is usually an error message I get almost every week. Normally this is due to the front sonar sensors being covered in ice or snow and will go away once it melts when I'm parked in the garage or is washed off.

However the past few days, I've had the car washed a few times to make sure the salt is off of the sonar on the front bumper but I'm still getting the error message stating to check the front sonar. If I leave the park assist on it works for the sides but not the front and the error message still stays on the screen. I've hand-washed the sonar sensors several times and 'massaged' them in place to maybe break up some ice behind the bumper or get the sensor to work but I've gotten nothing. Upon further inspection, one of the sensors has a deep scratch in it to where you can see past the paint of the car slightly.

Anyone have any experience or had a similar issue? I'm really not looking forward to taking the car to the dealer to have them look at the sensor because they will most likely charge me a ton. I saw a few other posts on the forums about the LS400 from '99-'00 having a similar issue and it cost them $550 to get it fixed. Obviously it's not the same car but I'm expecting a similar quote. I'm assuming the paint scratch is what is causing the issue as another post for the LS mentioned the same thing and said they had to scratch all the paint off of the sensor to make it work again.

jonathanz

iTrader: (2)

sensor on my MDX been beeping, i need to wash my car. sure nothing cover your sensors?

AfterDeath

Yup - got it washed yesterday. After pulling 20 feet out of the car wash it started going off again. Drove home and washed the front sensors again with warm water and still nothing.

yardie876

Looks like a visit to the dealership is in store. You can at least confirm it is the scratched sensor causing the issue. They're ~$275 from Sewell if you want to take the task on yourself and save a few bucks. Not sure if they're are any initialization requirements for new sensors though...

AfterDeath

I don't think there should be as there wasn't for the '99 LS...but a lot has changed in 15 years so it wouldn't surprise me.

GS250

could polish away the scratch and see if that helps?

Tobiastrus

Hi everybody, I am new here and have a 2008 GS460. When I start the car I get a check parking sonar system message. 2 arrows at the front passenger side of the car diagram appear.
. Please advise