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Dynamic Radar Cruise Control #5109101 05/19/19 08:18 AM
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AuthorEditor Offline OP
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I own older cars and drive them into the ground, so I am new to this Dynamic Radar Cruise Control thing found in today's Toyotas. Rented a Camry with it recently and it was completely frustrating and useless in normal busy highway driving. What am I missing here? For example, on a busy limited access road with frequent interchanges the system would jam on the brakes every time someone was merging from the right. If I had maintained speed I would have been able to pass ahead of the other car which could have merged behind me. Or, I found that someone would blow by me, pull in ahead and the car would jam on the brakes again to maintain a ridiculously long following distance. This meant I kept gradually slowing up as more and more people jumped into the huge space in front of me. I also get all sorts of beeping warning sounds when doing normal things like driving around an exit or entrance ramp. I couldn't figure out what it was warning me about. I deliberately tried a few of these going way too slow, driving right down the middle and I still got beeping. What is it telling me? In general, I found the system useless, and possibly dangerous as it jams on the brakes in situations I would not expect it to.

Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109106 05/19/19 08:24 AM
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mightymousetech Offline
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Yup. Can’t stand it myself. So annoying. Always turn it off.


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2013 BMW 135i M Sport Edition Motul 0W40, MTL/MT-LV
2010 BMW 328i X-Drive, Castrol 0W40, MT-LV
Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109107 05/19/19 08:25 AM
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I don’t know the specifics on your Toyota but on my Mazda you can go into the settings and change a number of parameters. The distance between you and the car in front can be adjusted. The audio beeps can be turned off.

I don’t use mine in busy traffic. Once out of the metro area I turn it on and it performs quite well. No more cancellations of the cruise control.

It may take you some getting used to it.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109108 05/19/19 08:28 AM
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Leo99 Online Content
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Cruise control is basically useless here in NJ. There is almost always a need to modulate your velocity. I never use it.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
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Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109110 05/19/19 08:30 AM
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Old Mustang Guy Offline
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It's great on the Interstate, rural. I wouldn't use any cruise control on a busy freeway.

Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109115 05/19/19 08:35 AM
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I have it on my Tundra and my feelings mirror those of Old Mustang Guy. You can adjust the following distance, and the beeping is likely a lane departure warning or blind spot warning. Also you can turn adaptive cruise off and use it as a regular cruise control system by pushing the button to turn it on, releasing the button, the pushing and holding it for a number of seconds.


2018 Tundra Crewmax 5.7
Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109122 05/19/19 08:41 AM
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jeepman3071 Offline
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I know it makes the radar detector go nuts. crzy Audi SUVs seem to trigger it the most though.


2013 Jeep Grand Cherokee TrailHawk 5.7L (144k) - PPHM 5w30, Wix 57899
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Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109130 05/19/19 08:47 AM
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AuthorEditor Offline OP
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Quote
It's great on the Interstate, rural. I wouldn't use any cruise control on a busy freeway.

Here in the Northeast most highways are busy, but regular cruise control can be quite useful if for no other reason than to avoid speeding tickets. The radar thing made me drive like a lousy driver. Even with light traffic you occasionally have to deal with a merging car, someone passing you, or exit ramps.

Quote
Also you can turn adaptive cruise off and use it as a regular cruise control

I assumed as much, but couldn't figure it out on the fly. This type of thing makes it hard to just hop into a rental car and drive off. Who wants to sit and read the manual every time you rent a car?

Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109139 05/19/19 08:59 AM
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MrHorspwer Offline
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Originally Posted by AuthorEditor
I also get all sorts of beeping warning sounds when doing normal things like driving around an exit or entrance ramp. I couldn't figure out what it was warning me about. I deliberately tried a few of these going way too slow, driving right down the middle and I still got beeping. What is it telling me?


It was telling you to read the owner's manual:

Quote
Warning: On curves, Dynamic Radar Cruise Control may not detect a vehicle ahead in your lane. You could be startled if the vehicle accelerates up to the set speed, especially when following a vehicle exiting or entering exit ramps. You could lose control of the vehicle or crash. Do not use Dynamic Radar Cruise Control while driving on an entrance or exit ramp. Always be ready to use the brakes if necessary.


The view of the radar is a cone extending straight out from the front of the vehicle. It doesn't bend and it doesn't articulate. If you turn the vehicle sharp enough, like an entrance or exit ramp, the vehicle trajectory is no longer within the radar's "cone": It can't see where you're turning into. That's what it was warning you about. Based on the steering angle, you were approaching or exceeding the system's capacity to see what was in front of you.

Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109141 05/19/19 09:03 AM
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I think the Dynamic Radar Cruise Control was deactivated before I entered the ramps, but the warnings continued sporadically. The car was warning me about something, but I don't know what.

Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109148 05/19/19 09:11 AM
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The warnings could have been lane departure or blind spot. I turned off my lane departure audio beeps and keep the visual in the HUD. I kept blindspot on but turned the audio volume down.

Rental companies have all these systems activated as a safety measure. That’s fine but on my personal vehicle I don’t care to hear the beeping every time I twitch.


2017 Mazda CX5
Havoline Pro DS 0w20
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Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109153 05/19/19 09:19 AM
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Imp4 Offline
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The beeping was lane departure. Easy to turn off permanently.

The dynamic cruise leaves too wide of a gap to the car in front. Even when put on the shortest setting.
Dynamic cruise must be turned off each time the car is started. Push and hold the 'cruise on' button for 3 seconds.


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Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109156 05/19/19 09:22 AM
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The one in my Hyundai works great on the interstate. Set my speed 3 over and never touch the brake or accelerator.
Adjusts speed based on traffic and keeps me from getting a ticket.
Moderate traffic it also does pretty well, but at times over brakes.

I have played with it in stop and go traffic when the wife is not in the car (it is a little jerky at times) and works pretty good.
Not something I use all the time in this aspect, more me just playing with it to see how it works.

Mine does not beep when activating (not even an option) but it does beep for lane monitoring, blind spot detection, and Forward Collision Warning (FCW) (just prior to applying the Autonomous Emergency Braking (AEB)).
The FCW/AEB is a separate system from the cruise control. Uses the same sensors, but what it looks for is a little different.
The radar cruise is only active when the cruise control is on, looking further ahead, the FWC/AEB is always on (unless you manually turn it off in settings) and is for closer (and usually lower speed) issues.

I have my lane monitoring turned off, it was beeping all the time for stupid reasons (one intersection was re-striped a while back, it sees the "old" stripes as lanes) and have issues with it alerting on high speed rural roads in sharp curves (of which there are many on the way to my moms).
When we first got it, she asked my why her car was beeping at her all the time, and it was that. Luckily, very easy to turn off.

Again, this is how the Hyundai system works (since I read my owners manuals), not sure how other systems work.


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Re: Dynamic Radar Cruise Control [Re: AuthorEditor] #5109164 05/19/19 09:38 AM
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Pelican Offline
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Originally Posted by AuthorEditor
I own older cars and drive them into the ground, so I am new to this Dynamic Radar Cruise Control thing found in today's Toyotas. Rented a Camry with it recently and it was completely frustrating and useless in normal busy highway driving. What am I missing here? For example, on a busy limited access road with frequent interchanges the system would jam on the brakes every time someone was merging from the right. If I had maintained speed I would have been able to pass ahead of the other car which could have merged behind me. Or, I found that someone would blow by me, pull in ahead and the car would jam on the brakes again to maintain a ridiculously long following distance. This meant I kept gradually slowing up as more and more people jumped into the huge space in front of me. I also get all sorts of beeping warning sounds when doing normal things like driving around an exit or entrance ramp. I couldn't figure out what it was warning me about. I deliberately tried a few of these going way too slow, driving right down the middle and I still got beeping. What is it telling me? In general, I found the system useless, and possibly dangerous as it jams on the brakes in situations I would not expect it to.


1st under in that situation one shouldn't use cruise control.
2nd This is another one of those...see what it can do and not is it useful!
3rd You can change the parameters or shut it off.
4th I wish all this F***ing technology was limited to engine management only.

Re: Dynamic Radar Cruise Control [Re: jeepman3071] #5109169 05/19/19 09:52 AM
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Snagglefoot Offline
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Originally Posted by jeepman3071
I know it makes the radar detector go nuts. crzy Audi SUVs seem to trigger it the most though.


+1. My Escort picks them up. I checked the Escort website and there doesn’t seem to be any new models that deal with it.


If you want the job done right......do it yourself.
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