EvanJ

I feel that my PCS (Pre-collision system) is not working. Since my family also own a 2015 Acura MDX, I can easily test and approve that Accra's collision warning system works without much risk. But with my RX 350, I just could not make it beep at all, even after set the sensor to the most sensitive level. Wonder if anyone tested it. Does it use front camera? I think my front camera broke too. It sometimes flash like crazy. i recorded a video of it. I will definitely go back to dealer again, but not 100% sure about the PCS.

https://goo.gl/photos/udAiBtmVMJP939Ge6

toyotaman7

I have tested it couple of times. It beeps and then locks up the wheels.

EvanJ

thanks. I will ask dealer to check PCS and will also test on the loaner if it is equipped with it.

Mdme

It's really set to only intervene at the last moment. Especially when compared to my Infiniti, I question if it's even there but I have certainly gotten it to beep.

dchar

It uses the cameras mounted above the rearview mirror, not the one mounted on the grille used for parking.

You definitely have a problem with the front parking camera though.

ggebhardt

I thought the system uses the radar system through the front emblem for the emergency braking.

kitlz

EvanJ, to test PCS, find an empty parking lot or road. Get up to 25 MPH, then press the brake harder than normal. It should kick in. I haven't tried it on the 4RXh yet but did have the brake warning flash on the dash when going around someone making a turn. Definitely have the dealer check the front cameras. Good luck and keep us posted..

sirtiger

your car must be a lemon. The other thread the OP posted about the car breaking down at 30km

coolsaber

PCS uses the radar behind the front emblem and the stereo camera below the rear view mirror. If any issues with line of sight due to physical blockage, refraction, or general system failure, the system would fault out. The issue with front camera for pano view is not going to directly affect the PCS system. However, seeing the OP had a breakdown with ECU replacement, it wouldn't surprise me if these issues are related in some way.

EvanJ

thank you all. I have sent the car back to dealership this morning. Will test again per your suggestion when it comes back to me.