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  #13  
Old 09-16-2013, 05:53 AM
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Re: ACC / FCW Error Message

I have a GC 2012 diesel and had a similar issue.
Problem s I have ascertained is that when parking that the front bumper actually had touched the garage wall. Sensor originally showed i still had one bar showing but actually touched the wall. No visible damage but driving next day square bezel around radar sensor moving causing error messages FCW / eTC.

After pulling plastic under cover off front bumper bar found that because of the light bump on the plastic front bumper their is 3 screws holding the radar sensor. They are easily popped as they are only held in by a plastic grommet which each thread screws thru. Unless checked and are firmly in place the sensor will slightly distort its level even with square bezel in place.
If you still get error messages FCW etc it is one of the 3 metal screws which are held in place by a plastic insert that hold the radar sensor is still loose- causes radar sensor to either pick up road to the left or right or elevation is down.
The parts look minimal- just a plastic grommet which one off the small screws screw into needs replacing.

Hope this helps -
Strategy from Australia
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Old 10-18-2013, 04:30 AM
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Re: ACC / FCW Error Message

Hi all

has anyone fitted a bull bar and looked at moving the ACC sensor from a very exposed bottom location to the top of the bumper bar section of a bull bar?

Gazz
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Old 06-21-2014, 05:03 AM
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Re: ACC / FCW Error Message

At 9600 miles I began to receive FCW/ACC errors to wipe radar, pull over to wipe and radar protective shroud missing. I did not hit, nor was I hit with anything that I am aware of. Took to dealer and the service manager looked at it with a befuddled look and then said he would order a new cover under warranty. Hopefully system will work correctly once new cover is installed. Been waiting 3 days now for the part to come in. Will update after part installed. It's nice that parts just fall off a 50k vehicle.
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Old 06-21-2014, 11:53 AM
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Re: ACC / FCW Error Message

Quote:
Originally Posted by Gazz1958 View Post
Hi all

has anyone fitted a bull bar and looked at moving the ACC sensor from a very exposed bottom location to the top of the bumper bar section of a bull bar?

Gazz
Ummmmmmm......that doesn't sound like a good idea unless you are going to disable the ACC system and not use it. I would bet you can't just relocate it and have it work like it should since it is calibrated / work in conjunction with a camera on top.
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Old 06-28-2014, 05:03 AM
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Re: ACC / FCW Error Message

Follow up to ACC/FCW errors and missing shroud at 9600 miles. Turns out my radar eye must have been hit with road debris as dealer claims radar camera eye is damaged as well as mounting bracket screw - replacement unit with installation is 1600$. Thankfully my dealer is completing this entirely under warranty. Obviously these units are very vulnerable due to physical location.
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