About a quarter inch of soft clear slush will deactivate the radar.

 

Yeep, happens all the time. I wonder if it would help coating the emblem with RainX or some kind of polish.

 

Happened to my TLX too. Never experienced this on my '18 MDX.

 

I'm not car expert but I wonder if Acura placed the radar in the best place on the car. Since weather is a key factor for the features to work, I think maybe they could consider another location on the car but I guess the question is where? It's not really realistic for drivers to stop in the middle of the road to clean it off just to get their car features to work. Seems a bit silly that it doesn't work during the times it's most needed (inclement weather).

 

Prior to the warning shown in my first post above, the first warning that there was a problem was a front proximity alert and suddenly a BRAKE warning in the hud. Fortunately there were not any cars ahead of me so I didn’t react to the BRAKE warning. Within a moment or so the proximity alert stopped and the warning pictured above came on. The experience made me feel like I was a pilot focused on malfunctioning gauges during an episode of Mayday.

 

I dunno. My 1976 Celica never had these radar problems.

 

Kind of scary that when you need the sensors to really be on the ball (bad weather) the systems crap out.

 

I've had this happen several times now - mountain snow - and just revert to my standard issue mark 1 eyeballs. Seems like the sensor needs some heated washer fluid to squirt across the big A in the grill. Acura are you listening?

 

I don't think they had a lot of choice as to where to place it. Obviously it needs to be placed on the front of the car, and I suppose covering it with the Acura logo is the best way to hide it.

Radar systems are systems are "relatively" new, and I don't think this problem occurs frequently enough for the manufacturers to worry about. In fact I would be surprised if any owners would even report it occurring, since the owners manual warns owners that it will occur and it's not a problem requiring repair.

I live north of Toronto, and I only had the warning appear about twice in my 4 years of owning my 2016 RDX and about twice in 1.5 years of owning my 2020 RDX.

Radar uses radio signals in a frequency band known as "microwaves". Microwaves are absorbed by water. That is why food gets hot in a microwave oven, and the glassware doesn't. That is also why you will lose your satellite TV signal during heavy rains, and your hiking GPS wont work when under a heavy tree canopy. What is interesting is that microwaves will pass through ice with very little absorption.

Regular water droplets will run off the Acura logo and not build up enough to cause a problem. And since crystalized water (snow and ice) will have minimal effect, it is only that "perfect storm" that causes the problem, a really wet slush as shown in the first post.

 

Good points!!!!!

 

This will do it.

 

 

What is that stuff? I live in the desert and I haven’t seen that since 1971! WOW

 

Don't get too cocky about it. The way things are going, this could be your year This was actually the 3rd time it happened since I've had the car. And we live in Kansas!

 

I agree, you’re right. Where I live we get more days of freezing rain or ice and less snow each winter.

 

You don’t hear us complaining about a lack of water ……..even in winter.

Oh …….by the way the camera system will not be able to see the lane lines or any other road features. So in bad weather your actually going have to drive your car. That’s why we opted to 4 wheel drive. Driving a RDX in bad ( good ski conditions) weather is fun……..how else to you get to the fresh powder.

Also it could be worse………how do you think these self driving cars ( they are promising are the future) are going to cope with bad weather ? Might be on the side of the road for hours while the cars thinks about ? How long will your batteries last at -10* on the side of the road waiting for,the weather to clear.