Dynamic Radar Cruise Control

Thanks for sharing. I spent about 45 minutes playing with DRCC and was impressed. Just for fun I had it active as I approached a red traffic light and sure enough it brought the car to a complete stop (not because the light was red but because the car in from of me slowed and stopped). My Gen-2 has the traditional cruise control and DRCC is a welcomed addition. I look forward to trying DRCC on an actual highway in the near future.

 

I have the dynamic cruise control on this Prius and on a 2014 Avalon Hybrid that I drive on road trips. I really like the feature and use it any chance I get. I chalk it as a premium safety feature.

 

Dynamic cruise control is very cool...
But, I have to buy a package that has
a sun roof to get it in the Gen 4.

( i very much dislike adding weight to the
roof of ANY car)

Next year, perhaps the package bundles
won't be so peculiar.........

 

TL2005, I believe I am correct when I say that a GEN4/4T/PCP has DRCC without a Sunroof. If I am mistaken about this, I need to know it SOON.

 

Bill, you can find out all this stuff in this (pinned) thread:

Visual Tables of Gen4 Package Combinations | PriusChat

 

I believe DRCC is part of the ATP package, which is standard on the Touring models (options on the non-Touring 3/4). I do not think PCP has any direct bearing on DRCC, but the Visual table pointed to above has all the details.

 

I am scared of continuing to use DRCC. I had it on for 20 minutes and decide it isn't for me, at least for now. First time using any kind of cruise control in a car. First of all it gave me worse MPG than if I drove myself. Second, the cruise control was turned off a few times by itself and I had my foot on top of the brake, not on, the whole time just in case something might happen. I had to brake myself those 3 times the car turned off cruise control on its own and I could've crashed those 3 times since I was in traffic. When it turned off I think the message said there was no car detected in front of me but there clearly was and it was 10 feet in front of me.


Does 4T with PCP brake on its own at any speed if I am about to hit a car or is it just the lane assist that turns off traveling at less than a certain speed? I don't remember which one it is but I've had several messages saying something was turned off due to me traveling at less than a certain speed.

 

ChosenOne, am I correct in recalling that some of your DRCC testing was done during inclement weather? DRCC can and often does turn itself off during periods of rain, fog, snow, and etc.

I am remiss in not checking Visual Tables of Gen4 Package Combinations immediately before posting my last comment above - thank you for your corrections. Having now checked the tables again, I see that Trim 4T includes DRCC as standard equipment, while the Power tilt/slide Moonroof is not offered. Is that not correct?

 

With DRCC am I right that you can switch off the DR, just use the CC? Could be times for both.

 

You are correct. If the “ON-OFF” cruise control button is pressed and held for 1.5 seconds or more, the system turns on in constant speed control mode (vs the .Vehicle-to-vehicle distance control mode, i.e, DRCC).

 

My 2016 4 Touring has DRCC and no Moonroof, so yes, that is correct. DRCC is standard on the 3 Touring as well, which also doesn't have a moonroof.

 

Oh yeah, you guys are right... Thanks for straightening
that for me.

Steve

l stand corrected, but has more to do with orthotics.

 

Got to really try out the DRCC and really loved it. It's eerie to have the car do the slowing on the freeway etc. as needed and I had my foot right on top of the brake just in case, but it seemed to work very smoothly and accelerated with the traffic. Naturally one always has to be vigilant, but looks very promising so far.

 

Until it fails?

 

Not sure whether there's intended sarcasm here, but blame Taleb's "The Black Swan" etc. for my distrust .

 

So after having driven with the new DRCC for several hours, there are two notes that I would say about it:

1. Although it is full speed, it needs a vehicle in front of it to be moving to slow to a complete stop. If you are cruising up to a stop light and there is a vehicle stopped in front of you at that stop light when you get into radar range and you're going 40 mph, it seems that cruise control system will not slow the car and the collision warning/mitigation system will take over. If you are behind a moving vehicle that stops at the stop light, then your cruise control will take you to a complete stop behind that vehicle.

2. If you are starting from zero at a stop light, and the car in front of you turns right, the cruise control system will deactivate and you will suddenly be thrust into normal driving mode. It feels like you suddenly got thrust into a pool. I'm not sure what the best way to handle such a situation is to get back into cruise control mode as quickly as possible.

3. The cruise control system must be at above 28 mph for initial activation.

Otherwise the cruise control system is great and works how you would expect it to although it leaves a huge gap when it stops behind a vehicle at a traffic light. It's amazing how well it keeps you at a constant speed all the time in traffic.