I just bought a SRX - I've read through the owner's manual front to back, and can't seem to find this. On the front bumper, towards the passenger's side, there's a cutout in the bumper of some sort - it almost looks like the cutouts for the headlight washers. I know it's not that though, because there's only one -- the SRX does have optional headlight washers that pop out, but they're right next to each headlight (there's 2), and I don't have that option on mine anyways. I know it's not a parking sensor either - they're only on the back bumper.
Does anyone have a SRX, and/or know what the hell that plastic thing is on the front bumper? Click this link to see what I mean. I got a pic from the Cadillac site, and circled what I'm talking about...
http://www.geocities.com/siciliano25m/SRXbumper.JPG