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I believe the OP's point was that one can easily forget they have the cruise control engaged after being stuck in the right lane behind slower traffic for a while. In those situations, it can be alarming to exit the highway when the slow traffic ahead does not exit, with the cruise control still engaged. Because instead of coasting to the bottom of the ramp, the vehicle accelerates.
I discovered radar cruise's quirks when I rented a vehicle that has the feature.
I bought a great new 2018 Toyota Camry. It has an equally great cruise control that automatically slows the car when a vehicle ahead slows down and re-accelerates when the lane is clear. I set my cruise control at 60 m.p.h.
The only trouble is when you get off an exit ramp it is often empty. The car accelerates suddenly when I enter the exit ramp unless I tap the brakes or disengage cruise control.
How did it get slowed down, before it accelerated suddenly in the exit ramp?
From what you said, it would have maintained 60 mph with the cruise control, and not been going any slower even in the exit ramp, unless you tapped the brakes or disengaged, right?
So, which one of those did you do before you entered the exit ramp? And why did it suddenly re-engage when you entered, even though you had told it to disengage by either tapping the brakes or disengaging it?
How did it get slowed down, before it accelerated suddenly in the exit ramp?
From what you said, it would have maintained 60 mph with the cruise control, and not been going any slower even in the exit ramp, unless you tapped the brakes or disengaged, right?
So, which one of those did you do before you entered the exit ramp? And why did it suddenly re-engage when you entered, even though you had told it to disengage by either tapping the brakes or disengaging it?
Radar cruise will keep pace with traffic ahead of you, up to the maximum cruise value that you set. So when traffic clears in front of you it accelerates back to the set mpg. So if you were in heavy traffic and took an off-ramp with no one in front it would accelerate to set speed.
I have the toyota radar cruise on my suv and it's been a game changer. I drove in heavy traffic for 4 hours and didn't touch the gas or brake pedal once. More importantly, when I arrived at my destination I wasn't mentally exhausted like I used to be after battling the same traffic.
There were even a couple of times that a car cut me off and the cruise control handled it very well, with a quicker reaction time than a human would have had.
This is clearly just a step along the way to the future where cars drive themselves, but man, it's awesome.
I have the toyota radar cruise on my suv and it's been a game changer. I drove in heavy traffic for 4 hours and didn't touch the gas or brake pedal once. More importantly, when I arrived at my destination I wasn't mentally exhausted like I used to be after battling the same traffic.
There were even a couple of times that a car cut me off and the cruise control handled it very well, with a quicker reaction time than a human would have had.
This is clearly just a step along the way to the future where cars drive themselves, but man, it's awesome.
I'd probably cry if I had to drive in traffic like that for four hours but, that's great feedback. I'm looking forward to our next new car (or CPO) with that type of feature.
IMO, auto-cruise control should only slow the car down if there is another car in the road. It should not return to the set speed without driver input. Or, at most, it should only return to the set speed if the speed it slowed down to is within 5 or 10 mph of the set speed.
Imagine being on cruise control at 65mph for hours, hitting a construction zone where traffic is going 15mph and your car automatically slows down to match traffic, then you finally get to your exit and turn the wheel to the exit lane, which is empty, and suddenly your car is vrooming up to 65mph.
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