I am wondering if anyone else has experienced this scary situation? I have had it happen many times as I'm driving with my cruise control in the left lane while passing a car in the right lane. There is a huge potential for being rear-ended when this abrupt deceleration happens.

Any fixes for this type of thing? I'm hoping that the sensors in the front can be adjusted so they aren't picking up cars that aren't actually in front of mine? Any input is greatly appreciated!

 

The only "fix" I know of is to have the windshield camera re-aligned. AFAIK, there are no other front sensors that cause this behavior, but I speak with limited knowledge. Mine has only done this stunt once when on a multi-lane road, and that vehicle had a trailer with a tarp over the load, and one corner of the tarp was blowing in the wind.
I have frequently had the vehicle brake when the car I'm following moves into the exit lane and slows, even though it is completely in the adjoining lane. It is rather annoying. One solution, at least for the exiting vehicle situation, is to press the accelerator when the vehicle in front begins his exit. If the accelerator is pressed, no matter how lightly, the ACC goes to sleep and will no longer do the braking you observe. After passing the exiting car, release the accelerator and the ACC takes control once again. This also works if someone squeezes into your lane while you are following another vehicle, or if you want to move up behind the vehicle ahead closer than the ACC control would do automatically. Useful in crowded traffic situations, and when preparing to pass another vehicle on a two-lane undivided road.

 

^^^^ What he said.

Mine does it occasionally, including car or truck in adjacent lane and the only solution I'm aware of is to anticipate the response and over-ride it with the accelerator pedal.

Also, adjust the ACC "following distance" to minimum, so the ACC brake response is less sensitive.

 

My 19 Advance does this once in a while. Dealer (not surprisingly) said they found no errors and couldn't duplicate.
The car that the RDX replaced (18 CR-V Touring) had the exact same behavior, and the dealer (different one) said almost word for word the same as the Acura dealer.

Both cars also exhibit(ed) the (very occasional) hard braking when I'm following a vehicle that had been in front of me, yet had completed a right turn, and was clearly out of the way. I believe this can be dangerous for a following vehicle. Slight accelerator pedal application will resolve this also, but it is very unnerving.

I have learned to adapt, as has been written here, but it sure seems like a calibration could fine tune it a bit...

 

Thanks for the feedback! I've definitely learned to hit the accelerator when it happens but it's just so sporadic and abrupt, it's not something you can readily anticipate. I'll be mentioning it to the dealer during my next visit...the squeaky brakes and infotainment issues are flat out annoying but this is a safety concern. Such a beautiful vehicle but it's been a huge disappointment.