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I am thinking about moving into a 2019 or 2020 Hylander if we can get all 5 of us and 4 sets of hockey gear to fit. Im trying to figure out all the differences between them online, and came across the stop/start engine system. Can you turn that off on the 2020's? What do you guys think of it? I feel like it would drive me crazy.
 

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2020 Highlander Limited AWD - Magnetic Gray
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It’s not very obtrusive, but there is a button to manually disable it if you want...but again I don’t really notice it. You might be able to permanently disable it through techstream if it’s not in the settings? Idk what options techstream opens up through the dealer...they just programmed my key fob to open all windows and sunroof by holding the unlock button which was pretty neat.
 

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Found this in the 3rd gen forums which says it cannot be permanently disabled, I would assume the same is true for the 4th gen (2020) HL. They do mention that it can be controlled by how hard you depress the brake pedal if you don’t want it to activate. I haven’t had mine long enough to confirm if this is true.

 

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Correct, it can't be turned off permanently, even with Techstream. The EPA rating is probably based on the assumption that start/stop is active.

It's already a new habit to press the disable button every time I get in the car. Sometimes I'll forget and it reminds when it puts a message on the display about why it's not shutting off the car while I'm sitting at a light. The salesperson told me that it's a little less likely to shut the car off than the 3rd Gen, as there are a number of conditions that need to be met before it decides to shut off the engine.

Yes, how hard you press the brake is one of the conditions. I've seen the message "press the brake harder to activate start/stop" while sitting at a light.

And it's true that you don't notice it. Before getting in the habit of turning it off, it was turning off on me sometimes. Honestly, unless you are staring at the tach in the HUD or watch the messages in the center of the info display in front of the driver, you don't realize it shut off. There's also nearly zero delay in starting back up when you let off the brake and press the gas pedal.
 

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Idk what options techstream opens up through the dealer...they just programmed my key fob to open all windows and sunroof by holding the unlock button which was pretty neat.
There's a section in the Owners Manual that lists all of the possible customizations and how to do them (big display screen, info screen in front of driver, or dealer with Techstream.)
 

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13% of the total fuel consumed in the USA is wasted idling engines.
Nice figure, I'd still like tom know how much the MPG will change if not using the feature vs using at the time. I guess on one of our trips (after we get the damn thing), we use it going one way, and not coming home. Now this won't be totally fair seeing we will be driving downhill going south when in use and going uphill driving back north:)

Maine to Quantico likely to be the first big trip
 

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My wife didn't even know it was on there until I told her. She doesn't push the brake pedal hard enough at a stop light to engage it. I like that for pretty much all the driving we do...it wont engage unless I tell it too....like at a train track or very long light. Its very easy to just drive normally and it wont engage...you'll just get the popup on the dash on how to engage if you want. and it does turn back on pretty much instantly before you can ever get your foot off the brake and back on the gas. I'm curious as to starter wear over time and I would like to see the difference in fuel consumption between idle and first start. Maybe modern engines don't need the startup spray of gas. I was hoping to find a way to permanently turn it off in the dash options.....haven't read the manual yet....but sound like maybe that isn't possible.


Overall a pretty slick feature...makes me forgive them for the stupid Qi charger location.
 

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20 Ruby Platinum HL, 19 Lexus UX200, 17 Yaris iA
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If you stop long enough (whatever long enough is) it will turn off.

I notice the engine start though.

I can not help think it increases wear......

I understand in another brand of car, which is very high performance, that you can (unofficially) remove a fuse to kill the “feature.”
 

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20 Ruby Platinum HL, 19 Lexus UX200, 17 Yaris iA
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I am thinking about moving into a 2019 or 2020 Hylander if we can get all 5 of us and 4 sets of hockey gear to fit. Im trying to figure out all the differences between them.......
You will need a bench seat version.

For me, from a purely practical standpoint, there are no differences you will feel bad about between a 19 and 20.......

I could have saved a bunch and had a new car sooner, but was fixated on getting a Gen 4.

The 19 is a good a hauler as a 20.
 

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If you stop long enough (whatever long enough is) it will turn off.

I notice the engine start though.

I can not help think it increases wear......

I understand in another brand of car, which is very high performance, that you can (unofficially) remove a fuse to kill the “feature.”
I've worried about increased wear on the starter and such too but I've read or watched (can't remember maybe engineering everyday on youtube) that the engineers have accounted for the extra startups in the design and engineering of those components. I feel pretty confident that Toyota wouldn't adopt this tech unless they felt like it was reliable. This is the reason they usually lag behind on innovation.
 

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I've worried about increased wear on the starter and such too but I've read or watched (can't remember maybe engineering everyday on youtube) that the engineers have accounted for the extra startups in the design and engineering of those components. I feel pretty confident that Toyota wouldn't adopt this tech unless they felt like it was reliable. This is the reason they usually lag behind on innovation.
Found the video Engineering Explained Start Stop
 

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I've worried about increased wear on the starter and such too but I've read or watched (can't remember maybe engineering everyday on youtube) that the engineers have accounted for the extra startups in the design and engineering of those components. I feel pretty confident that Toyota wouldn't adopt this tech unless they felt like it was reliable. This is the reason they usually lag behind on innovation.
Good points. Thanks for the video too. I did notice all that was available was Standard and Extended on the option settings...no off. Maybe an update will be added for that later. idk. I actually like it and the video was very informative.
 

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Nice figure, I'd still like tom know how much the MPG will change if not using the feature vs using at the time. I guess on one of our trips (after we get the damn thing), we use it going one way, and not coming home. Now this won't be totally fair seeing we will be driving downhill going south when in use and going uphill driving back north:)

Maine to Quantico likely to be the first big trip
I drove my Mirage down my test track (deserted road) and got over 150 MPG with engine off coasting, about 3.3 miles in 6 minutes 20 seconds. Same test drive with the engine idling the MPG dropped 50%. So the same amount of fuel used uselessly running the engine, used to provide propulsion contributing nothing to vehicle movement was used as the amount used to move the vehicle at 28 MPH average speed using the power of the vehicles inertia to cover 11/12ths of the distance travelled.
Its been around over 2 decades, I owned a 2000 Honda Insight with start stop. The engine idled at 150 MPG with the vehicle coasting in neutral (CVT transmission) at 15 MPH using about .11 GPH. My neighbors V8 Chevy used .5 GPH idling. My Insight would go 40 MPH on that same .5 GPH consumption.
Obviously if you are on cruise control at highway speeds, then there would be NO savings. The savings is huge when you are crawling at almost gridlock conditions, especially with the hybrid battery providing all of the propulsion for a decent amount of distance and you use no liquid fuel, so the savings is 100 %.
Your average is totally dependent on you average driving environment somewhere between those two extremes. Trips help only where you encounter stop and go driving. Local multi stop commutes are where start- stop shines.
Your test conditions given the choice of driving environment will show it to be a total waste Try a commute to work and back with numerous traffic lights.
 

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I drove my Mirage down my test track (deserted road) and got over 150 MPG with engine off coasting, about 3.3 miles in 6 minutes 20 seconds. Same test drive with the engine idling the MPG dropped 50%. So the same amount of fuel used uselessly running the engine, used to provide propulsion contributing nothing to vehicle movement was used as the amount used to move the vehicle at 28 MPH average speed using the power of the vehicles inertia to cover 11/12ths of the distance travelled.
That's hardly a real world scenario. If we could coast around everywhere we wanted to go, we wouldn't need engines.
If the engine was off, you got a lot more than 150 MPG. You actually got infinite miles per gallon!

I understand that there's an argument in favor of this start/stop thing, but let's not get so extreme with it as to be completely unrealistic.
 

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I test drove one today and didn’t even notice the auto start/stop. I love had some rental Jeep/fords recently that were incredibly intrusive but Toyota seems to have calibrated it well
 

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20 Ruby Platinum HL, 19 Lexus UX200, 17 Yaris iA
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I was stopped at a turn tonight and I purposefully applied more break. The rngine did not turn off. But elsewhere it did. Emmmm....
 

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Found this in the 3rd gen forums which says it cannot be permanently disabled
Actually the forum members collectively helped create this below.. And it works AMAZING!

If there is enough interest here we can all come together and create one for the 4th Gen.
 
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