Do you trust the adaptive cruise control?
08-25-20, 09:24 PM
#136
Agreed on the adaptive cruise in stop-and-go traffic. I also have a very rough downshift with my transmission at higher speeds going from 5th gear to 4th so compound that with the jarring brakes and it makes for an extremely uncomfortable ride. It almost feels like I'm in some amusement ride.
You can turn on the regular cruise by holding the ON/OFF button at the end of the cruise control stalk. You'll notice the cruise control indicator change in the instrument cluster.
You can turn on the regular cruise by holding the ON/OFF button at the end of the cruise control stalk. You'll notice the cruise control indicator change in the instrument cluster.
08-26-20, 10:34 AM
#137
Lexus Test Driver
Cruise adaptive or otherwise is NOT intended for stop and go traffic. Cmon.
08-26-20, 12:27 PM
#138
This system uses radar and camera technology to help you maintain a preset speed and following distance from the vehicle ahead. Whether at highway speeds or in stop-and-go traffic, the system is designed to detect if you get closer than the preset distance and automatically slow your vehicle, even to a complete stop.
My first experience with adaptive cruise control was on my wife's 2004 Toyota Sienna. All these years later, the implementation hasn't changed much and isn't much better. I've tried it on my 2020 RX in stop and go traffic, and don't like it at all. It drives like a teenager; no ability to see what is about to happen and adjust accordingly. As a result, it accelerates too quickly and brakes too hard. No thanks. Highway driving is a different story. I generally use and like its behavior there.
08-26-20, 01:14 PM
#139
The user manual for my 2018 is very clear that if the ACC slows the vehicle below a certain speed, it will disengage and not resume. It works very well, IMHO, on freeways when the traffic is flowing, as well as on low-volume state highways.
Last edited by dibl; 08-26-20 at 01:26 PM.
08-26-20, 04:00 PM
#140
Lexus Test Driver
I don't disagree with you, @mikemu30, but Lexus (and other brands) market it for stop and go situations. Here's an excerpt from the 2020 RX350 All Speed Dynamic Radar Cruise Control page (https://drivers.lexus.com/lexusdrive...hnology/safety):
This system uses radar and camera technology to help you maintain a preset speed and following distance from the vehicle ahead. Whether at highway speeds or in stop-and-go traffic, the system is designed to detect if you get closer than the preset distance and automatically slow your vehicle, even to a complete stop.
My first experience with adaptive cruise control was on my wife's 2004 Toyota Sienna. All these years later, the implementation hasn't changed much and isn't much better. I've tried it on my 2020 RX in stop and go traffic, and don't like it at all. It drives like a teenager; no ability to see what is about to happen and adjust accordingly. As a result, it accelerates too quickly and brakes too hard. No thanks. Highway driving is a different story. I generally use and like its behavior there.
This system uses radar and camera technology to help you maintain a preset speed and following distance from the vehicle ahead. Whether at highway speeds or in stop-and-go traffic, the system is designed to detect if you get closer than the preset distance and automatically slow your vehicle, even to a complete stop.
My first experience with adaptive cruise control was on my wife's 2004 Toyota Sienna. All these years later, the implementation hasn't changed much and isn't much better. I've tried it on my 2020 RX in stop and go traffic, and don't like it at all. It drives like a teenager; no ability to see what is about to happen and adjust accordingly. As a result, it accelerates too quickly and brakes too hard. No thanks. Highway driving is a different story. I generally use and like its behavior there.
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GSFRX350 (08-26-20)
08-26-20, 04:16 PM
#141
Driver School Candidate
Many other automakers have been able to get ACC correctly. Granted, it's not for every situation and doesn't usually handle things such as other cars merging well. But it's a real lifesaver for many situations where you're literally stopping and going such as a slow crawl through a construction zone or a really backed up one lane highway on/off ramp.
I've used a few systems such as Volvo Pilot Assist or Subaru Eyesight and they've been able to nail down the braking/acceleration. I really wish Lexus could've done ACC better, but then again, they thought that having ACC quickly disengage without enough warning when going below 30mph on the previous generation ES was a good idea.
I've used a few systems such as Volvo Pilot Assist or Subaru Eyesight and they've been able to nail down the braking/acceleration. I really wish Lexus could've done ACC better, but then again, they thought that having ACC quickly disengage without enough warning when going below 30mph on the previous generation ES was a good idea.
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bamalam (08-26-20)
08-26-20, 06:52 PM
#142
I dropped off my 450h for a recall & a few other annoying issues & they gave me a UX to drive. What a big disappointment that thing is! Is it really a Lexus? I noticed it had all of the stupid radar cruise, etc. & I disabled it as soon as I started it up. My travels were much more stress free knowing that crap wasn’t going to intervene & scare me out on the highway. I can’t believe what they are charging for a cramped, buzzy little car that doesn’t even have leather seats. Hey, it’s nice to have wheels to drive while they work all of this foolishness out, so I’ll be happy
08-27-20, 10:15 PM
#143
Pole Position
Do I trust it? No. Should you, no. Here's my view based on my experience with Tesla. You are 100% accountable for what happens unless another fault could be determined(rarely happens). Furthermore, it's a drivers aid and not designed to be 100 autonomous. It just makes things a lot easier if you are on the hwy for long periods of time. I still use it, but I pay equal attention to it as if I were still controlling throttle and brake. It's nice for road trips, otherwise, I never use it. Even the most advanced system can't drive itself without fault(at this time).
08-28-20, 03:23 PM
#144
Do I trust it? No. Should you, no. Here's my view based on my experience with Tesla. You are 100% accountable for what happens unless another fault could be determined(rarely happens). Furthermore, it's a drivers aid and not designed to be 100 autonomous. It just makes things a lot easier if you are on the hwy for long periods of time. I still use it, but I pay equal attention to it as if I were still controlling throttle and brake. It's nice for road trips, otherwise, I never use it. Even the most advanced system can't drive itself without fault(at this time).
09-13-20, 01:35 PM
#145
Do I trust it? No. Should you, no. Here's my view based on my experience with Tesla. You are 100% accountable for what happens unless another fault could be determined(rarely happens). Furthermore, it's a drivers aid and not designed to be 100 autonomous. It just makes things a lot easier if you are on the hwy for long periods of time. I still use it, but I pay equal attention to it as if I were still controlling throttle and brake. It's nice for road trips, otherwise, I never use it. Even the most advanced system can't drive itself without fault(at this time).
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GSFRX350 (09-13-20)
01-27-22, 11:46 AM
#146
1) there is some "learning " involved by the computer , and this 2021 has not had much use so far/ is not my car so not used to my driving?
and/or
2) my ES is the past generation of adaptive where it automatically kicks off at 25ish MPH or lower. The new one goes to zero, and some of these glitches were happening right around the 25 MPH speed range...
01-27-22, 12:34 PM
#147
just had a 2021 RX350 to test drive for 24 hours. I found this generation of adaptive cruise control to be a bit more unreliable than the past generation on my 2016 ES. within the 24 hours, there were a couple of incidents where it just did not pick up a slow or stopped car ahead, and then either I had to brake hard, and/or the red warning beep thing had to fire. This does not happen to me with my 2016 ES. Are there some issues with the new version? or could it be:
1) there is some "learning " involved by the computer , and this 2021 has not had much use so far/ is not my car so not used to my driving?
and/or
2) my ES is the past generation of adaptive where it automatically kicks off at 25ish MPH or lower. The new one goes to zero, and some of these glitches were happening right around the 25 MPH speed range...
1) there is some "learning " involved by the computer , and this 2021 has not had much use so far/ is not my car so not used to my driving?
and/or
2) my ES is the past generation of adaptive where it automatically kicks off at 25ish MPH or lower. The new one goes to zero, and some of these glitches were happening right around the 25 MPH speed range...
01-27-22, 01:19 PM
#148
just had a 2021 RX350 to test drive for 24 hours. I found this generation of adaptive cruise control to be a bit more unreliable than the past generation on my 2016 ES. within the 24 hours, there were a couple of incidents where it just did not pick up a slow or stopped car ahead, and then either I had to brake hard, and/or the red warning beep thing had to fire. This does not happen to me with my 2016 ES. Are there some issues with the new version? or could it be:
1) there is some "learning " involved by the computer , and this 2021 has not had much use so far/ is not my car so not used to my driving?
and/or
2) my ES is the past generation of adaptive where it automatically kicks off at 25ish MPH or lower. The new one goes to zero, and some of these glitches were happening right around the 25 MPH speed range...
1) there is some "learning " involved by the computer , and this 2021 has not had much use so far/ is not my car so not used to my driving?
and/or
2) my ES is the past generation of adaptive where it automatically kicks off at 25ish MPH or lower. The new one goes to zero, and some of these glitches were happening right around the 25 MPH speed range...
01-27-22, 02:27 PM
#150
I’ve found almost all of Toyota’s so-called “safety” equipment to be extremely flawed. My rear cross traffic alert is a ridiculous joke. It won’t pick up a cart or people walking behind the car & it won’t alert for a vehicle until it’s directly behind me! Service says this is normal & there is no adjustment. Funny, my Camaro rear cross traffic alert picks up people walking & vehicles over 50 feet away. This flawed crap is a huge waste of money.