Hello, I recently replaced my front emblem myself, I did not unplug the cc radar and placed everything back exactly as it was, however it gives me the clean sensor error when I try to use cc. Any ideas on how to fix this without having to pay a ton at the dealership.

Thanks

 

Sorry, but you have become a victim of misinformation : Cheap knockoffs are available everywhere, but WILL NOT WORK on cars with Adaptive Cruise Control (radar) !!! The one you MUST use is the OEM part (around TEN TIMES the cost), or you will discover the radar is attenuated by the cheap emblem, ans WILL NOT WORK. I spent days proving this was the case, and ended up polishing up my old one, rather than paying $250 for an OEM replacement.

 

Mine is a 2017 RX350 Luxury, and the front emblem clouded over something fierce after five years. My car is perfect otherwise, so I inquired at the dealership and got quoted $1200 total cost for replacement/calibration. Yikes!!! So I ordered the emblem myself, PN XXXXX-48100 for the radar compatible/PreCrash System/etc. model. Super easy installation after removing the upper trim piece under the hood. Looks so great, but then on the road, I kept getting the PCS warning triangle. Stopped by the dealership and spoke with the sec mgr. I'll need to get it properly calibrated. Honestly wish I would have just coughed up the dough and gotten it done at the dealership the first time. Dang I love this car though!

 

I guess it depends on how important radar CC is to you. I tried it maybe twice and didn't like it. I like to control my car myself, so never used it again. I do use regular CC though.

 

I am having a similar issue with an aftermarket emblem. Although, I am not convinced it is a calibration issue. My, new to me, '16 rx350, had a faded emblem. I replaced it myself with an aftermarket emble. I took great care not to disturb the radar mounts, so it should remain aimed correctly. I get the yellow triangle and the message "radar cruise not available, clean sensor" after about 45 minutes of use. If, the AM emblem would not allow radar to pass through, It would not work from the start. I also note that it functioned properly until the failure warning. I drove with the radar cruise for about a half hour yesterday and it worked fine with the AM emblem. I am interested in this thread, would love to know if the expensive dealer 'calibration' fixes the problem with the OEM emblem. Also, does the failure notification come on right away, or after awhile? I will be watching this. Love the car so far.

 

Ravenuer, can you select regular cruise in lieu of radar cruise? If so, how?

 

The mounting points as we all know are "hard points". No wiggle, so after being super careful during the emblem process, I was sure I had this project whipped. Yeah, right. I used the cruise yesterday for about 15 minutes of backroads driving, with very few vehicles around, then the warning triangle popped on. First time I've tried in well over a week since I hate dash warning lights. Only way to get it to turn off is to stop and restart the car, even after turning that feature off on the dash. Just the thought of immediate anti-collision braking with no warning is frightening enough. Came home and spent time reading about ADAS calibration. There are indeed several places here in the Tucson area that will do the calibration. Still not cheap. I'll get something done this week hopefully.

 

Push the cruise control button in and hold it for 3 or 4 seconds. You will then be on cruise control without the radar.

 

Great information! Thank you. I just had to make a trip to the doc and back, and had never thought of holding the button for 4 secs. Worked perfectly, just like CC of old!

 

By doing this, which I did this morning, do I lose the pre-collision safety features? IOW, should I still get the system recalibrated so I have all the safety features this car was designed with? I've been trying to contact my local dealer, but they haven't returned my phone calls in over 3 weeks.

Michael

 

I don't know your answer. Can you drive to your dealer and ask them in person? 3 week wait is ridiculous.

 

I made an appointment for next Tuesday, drop off at 7am with a loaner, at the other dealership across town. I'll repost with my final cost. They were able to pull up all my service records/history and were super cordial on the phone.

Michael

 

Hi.
I had the same problem. When I bought the car the car has original emblem. Unfortunately ACC doesn't work. I was checked correctly emblem on lexus web .( Price was ridiculous 940£) I found correctly used emblem on eBay (300£) . First, remove existing emblem from your car and make a drive test if everything works fine, definitely you need replacing the emblem. 👍

 

I hope I never have an issue with the factory emblem, I use the radar cruise control frequently. I have never experienced any unsafe operations with it (and I usually cut the distance down to 1 bar).

 

AZ, please let us know how this turns out. because of the mount, we assume the radar is aimed correctly. Maybe there is an 'intensity' adjustment, or 'sensitivity' adjustment. I still think there is another issue here. Last night I drove my 90 mile trip, radar cruise failed at about 70 miles, clear weather. Coming home, wet slushy roads and snowing. R/Cruise failed after about 30 miles, I shut it off, the triangle went out after about 15 miles, I turned it back on, and it worked fine for the remaining 60 miles. Strange. I do want to know if your recalibration fixes your problem.