Do you trust the adaptive cruise control?
07-26-18, 06:12 PM
#31
I set 3 bars for a relaxing drive on fairly empty freeway; 1 bar for congested commute to work. The 4RX has braked for me at low speed once or twice (not on cruise control), and it slows to a safe distance always on cruise control, but similar to having another driver, you will tend to react differently to how the cruise control would when it comes to "panic" situation. I think the 4RX will keep things safe, but drivers may choose to slow down and/or speed up in a slightly different way than the computer would.
07-26-18, 08:23 PM
#32
Lexus Champion
MB distronics plus seems the best amongst all others. I use it on highway all the time. maintain set distance from a car in the front and speeds up to my max set speed or slow down to a stop when traffic stops. Still I pay due attention. Another feature I like is "hold brake". Don't have to have foot on the brake pedal when I stop for red light for an example. In slippery winter time I prefer to control speed and braking myself. Another feature is an ability to detect sleepy driver with loud warning beep. (I think the feature monitors the movement of driver's head)
Last edited by Htony; 07-27-18 at 11:25 AM.
07-27-18, 03:42 AM
#33
MB distronics plus seems the best amongst all others. I use it on highway all the time. maintain set distance from a car in the front and speeds up to my max set speed or slow down to a stop when traffice
stops. Still I pay due attention. Another feature I like is "hold brake". Don't have to have foot on the brake pedal when I stop for red light for an example. In slippery winter time I prefer to control speed
and braking myself. Another feature is an ability to detect sleepy driver with loud warning beep. (I think the feature monitors the movement of driver's head)
stops. Still I pay due attention. Another feature I like is "hold brake". Don't have to have foot on the brake pedal when I stop for red light for an example. In slippery winter time I prefer to control speed
and braking myself. Another feature is an ability to detect sleepy driver with loud warning beep. (I think the feature monitors the movement of driver's head)
not sure why you are still hanging around here, not much to offer, and slam the rx every chance you get. also you had a gen3 ? and not a 4th gen. could hop in the 3rx forum ??
just thinking out loud
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07-27-18, 06:38 AM
#34
Lexus Champion
Former Lexus owner or possible future owner again is not allowed to stay in Club Lexus? I never heard something like this for any other forums(MB, Audi, BMW plus many others, non-related to automobiles)
Last edited by Htony; 07-27-18 at 11:28 AM.
07-28-18, 08:06 AM
#35
Lexus Test Driver
He's just saying we are here to discuss our Lexus cars, not bash them and not brag how much better MB is or any other brand. We get it - you wanted "the best or nothing" congrats on that you got it.
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Rarebird (07-28-18)
07-28-18, 09:50 AM
#36
potentially you didn’t see how your post was not contributing to our discussion? Threadcrapping is frawned upon generally, and as I read your OP, you clearly did just that. If you don’t own the car, it’s fine to participate in general 4RX discussions, but this one is specific to owners of our gen car and we looking for feedback from owners who use cruise.
07-31-18, 01:39 PM
#37
Driver School Candidate
Thread Starter
I actually welcome comparisons from other brands. As Lexus owners who spent a large sum of money on an RX, I can understand most of us don't want to hear areas in which the RX is deficient. However, I am not brand loyal as I've owned about 10 brands. Since I am not all that happy with my RX, I want comparisons from other makes, so that hopefully I can make a better choice on my next car.
08-01-18, 12:23 PM
#38
MB distronics plus seems the best amongst all others. I use it on highway all the time. maintain set distance from a car in the front and speeds up to my max set speed or slow down to a stop when traffic stops. Still I pay due attention. Another feature I like is "hold brake". Don't have to have foot on the brake pedal when I stop for red light for an example. In slippery winter time I prefer to control speed and braking myself. Another feature is an ability to detect sleepy driver with loud warning beep. (I think the feature monitors the movement of driver's head)
The X5 was very aggressive and uncomfortable with the use of adaptive cruise control, and while the RX was not buttery smooth, you could tell that it erred on the side of safety, which is important as this is a relatively new technology.
Glad you like the MB system but you should probably back up the "why" with reasons other than features the RX already does. My two cents.
08-01-18, 12:40 PM
#39
Lexus Test Driver
Every car, every brand has it's issues. My boss's brand new MB AMG - the big SUV whatever they call it - week two of ownership had to be towed to the dealer. Bad sensor or something - who knows but you get the point.
08-02-18, 01:25 PM
#40
GLS is the biggest MB SUV. They mostly follow the A, C, E, S nomenclature of their cars but prefix their SUVs with GL, e.g. GLA, GLC, GLE, GLS, etc.
08-05-18, 10:23 AM
#41
Let's say you are cruising at 75 MPH.
You can see in the distance that cars have slowed considerably.
With 1 bar, your Lexus will hurtle down the road at 75 MPH until you get very close to the car ahead, and slams on the brakes.
Very anxiety provoking. That's why I set it to 3 bars.
You can see in the distance that cars have slowed considerably.
With 1 bar, your Lexus will hurtle down the road at 75 MPH until you get very close to the car ahead, and slams on the brakes.
Very anxiety provoking. That's why I set it to 3 bars.
08-07-18, 11:34 AM
#42
Interesting just-released IIHS study on driver assist technology and how they fare in the real world. Did not test Lexus (Tesla, BMW, MB, Volvo). Generally they perform but the study proves the need for driver vigilance.
IIHS Study
IIHS Study
08-23-19, 11:44 AM
#43
Driver School Candidate
Cruise Control System Dangerous Failure
So this summer I drove our 19' RX 350 from VA to FL and back. I am a big fan of technology, so I used adaptive cruise control almost all the time. However, I ran into a situation three times where the system failed. It was during stop and go traffic. Speed was set to 60. The car was still and it sped up to close a gap opened by the the car in front of me moving forward then stopping. My car picked up speed, and continued to accelerate as if it couldn't see the car in front of it. Fortunately, the auto-braking system intervened and applied the brakes with the usual alarm avoiding an accident. This scared me and my family.
If this happened once, I would probably ignore it. But it happened 3 times. How is it possible that the cruise control was not able to see the car in front of me, and the auto braking system was able to? Are they not using the same camera and sensor?
In any case, this seriously shook my confidence in the system, and now I am reluctant to use it as I do not know if or when it might happen again. I had a higher expectation from a Lexus.
If this happened once, I would probably ignore it. But it happened 3 times. How is it possible that the cruise control was not able to see the car in front of me, and the auto braking system was able to? Are they not using the same camera and sensor?
In any case, this seriously shook my confidence in the system, and now I am reluctant to use it as I do not know if or when it might happen again. I had a higher expectation from a Lexus.
08-23-19, 01:09 PM
#44
Racer
So this summer I drove our 19' RX 350 from VA to FL and back. I am a big fan of technology, so I used adaptive cruise control almost all the time. However, I ran into a situation three times where the system failed. It was during stop and go traffic. Speed was set to 60. The car was still and it sped up to close a gap opened by the the car in front of me moving forward then stopping. My car picked up speed, and continued to accelerate as if it couldn't see the car in front of it. Fortunately, the auto-braking system intervened and applied the brakes with the usual alarm avoiding an accident. This scared me and my family.If this happened once, I would probably ignore it. But it happened 3 times. How is it possible that the cruise control was not able to see the car in front of me, and the auto braking system was able to? Are they not using the same camera and sensor?
In any case, this seriously shook my confidence in the system, and now I am reluctant to use it as I do not know if or when it might happen again. I had a higher expectation from a Lexus.
In any case, this seriously shook my confidence in the system, and now I am reluctant to use it as I do not know if or when it might happen again. I had a higher expectation from a Lexus.
