430 Canada

I have an '06 430. Every time the temperature goes to freezing or below I get a rattle from behind the Nav system. The dealer was advised and they say they put foam around the winshield/dashboard interface, but this did nothing. This has happened for three winters now and it's getting worse. At the last servicing I advised the service technician who told me " that Lexus makes a good car, but its not perfect". My old Mercedes S430, BMW 540 and X5 never had rattles like these. It's just a rattle, but it freaks me out when I drive a rental Buick that's peaceful and quiet!

I've experienced this several times. The sensor is located behind the "L" of the Lexus Badge on the front grill. If it gets blocked with snow, the PCS warning light will come on. If possible, I'll pull over and clear the sensor.