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Discussion Starter #1
To new Rav4 hybrid owners, does your vehicle have the same 50/50 awd split lock button (up to 25mph) as the gas model? Unable to find information about this anywhere. Different system so didn't want to assume.

Congrats on your new hybrids, I'm jealous and probably gonna bite the bullet and get one at some point.
 

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Discussion Starter #3
Interesting, so those rear motors only engage when front wheels are slipping or during cornering and such?
 

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Appears to be the same system as the Highlander Hybrid uses. The rears only drive when the computer thinks they need to.
 

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Discussion Starter #5
Huh, so in *theory*, the gas model should have a not-insignificant edge in certain conditions (i.e. low speed snow/ice/trail). Interesting I hadn't heard anything about this. Well, I guess you have to optimize for what you do the most (city/highway conditions). Hybrid is amazing there.

Thanks!
 

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Interesting, so those rear motors only engage when front wheels are slipping or during cornering and such?
I was told when picking up my Hybrid vehicle yesterday morning that if left in sport, 10% of the power will go to the rear axle/wheels. I am putting the vehicle in ECO mode and will be fitting the car with winter tires. :)

I will read the manual to gain more assurance though.
 

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To new Rav4 hybrid owners, does your vehicle have the same 50/50 awd split lock button (up to 25mph) as the gas model? Unable to find information about this anywhere. Different system so didn't want to assume.

Congrats on your new hybrids, I'm jealous and probably gonna bite the bullet and get one at some point.
It seems you already know this, but it should be noted that the hybrid has no rear driveshaft to lock to 50% anyway since it has a completely separate electric motor.

I suppose they could emulate that electronically though.
 

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Huh, so in *theory*, the gas model should have a not-insignificant edge in certain conditions (i.e. low speed snow/ice/trail). Interesting I hadn't heard anything about this.
I suspect there will soon be YouTube videos explaining how lousy the Rav4 Hybrid AWD system is!
 

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Huh, so in *theory*, the gas model should have a not-insignificant edge in certain conditions (i.e. low speed snow/ice/trail). Interesting I hadn't heard anything about this. Well, I guess you have to optimize for what you do the most (city/highway conditions). Hybrid is amazing there.

Thanks!
I suspect there will soon be YouTube videos explaining how lousy the Rav4 Hybrid AWD system is!
The traction control system on hybrids has its limitations, BUT, if you take the time to learn how it works and drive it appropriately you'll get where you need to go. Bottom line is that if you lose forward momentum the system *may* shut you down and refuse to move. So in that case, the secret is to not lose forward momentum. Its mainly an issue when negotiating an incline at low speed.

But in any other situation where you're moving more than 5-10 mph you won't notice much difference from any other system.

No doubt some people will blame the system for their lack of driving skills.
 

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Interesting, so those rear motors only engage when front wheels are slipping or during cornering and such?
https://drive.google.com/file/d/0B49jnI2SkaiTRU9FUkdCckRwSU0/view?usp=sharing

pg. 297 of Canadian Hybrid Manual

E-Four (Electronic On-Demand AWD System)
Automatically switches from front wheel drive to four-wheel drive (AWD) according to the driving conditions, helping to ensure reliable handling and stability. Examples of conditions where the system will switch to AWD are when cornering, going uphill, starting off or accelerating, and when the road surface is slippery due to snow, rain, etc.


An honest question as this is our first vehicle with AWD. In what other situations merit the engagement of the AWD for additional safety or performance? Maybe Toyota will reconsider and include these in the next firmware update.
 

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An honest question as this is our first vehicle with AWD. In what other situations merit the engagement of the AWD for additional safety or performance? Maybe Toyota will reconsider and include these in the next firmware update.
Are you suggesting that Toyota did not consider all situations that need AWD and that the software algorithms are somehow inadequate? They have been producing AWD systems for years so I'm sure that's not the case.

That said, all AWD systems are not created equal and Toyota probably optimized the software to react to driving situations most likely encountered by Rav4 drivers. This is not a vehicle designed to go off road for example.
 

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Are you suggesting that Toyota did not consider all situations that need AWD and that the software algorithms are somehow inadequate? They have been producing AWD systems for years so I'm sure that's not the case.

That said, all AWD systems are not created equal and Toyota probably optimized the software to react to driving situations most likely encountered by Rav4 drivers. This is not a vehicle designed to go off road for example.
Quite frankly, it was your earlier post that piqued my interest on the topic:

"I suspect there will soon be YouTube videos explaining how lousy the Rav4 Hybrid AWD system is!"

At least now I know you do not dislike the AWD system but are suggesting many drivers will hate it.

Apart from the conditions mentioned in the manual, I only wonder if Toyota missed anything. I'm sure the Toyota AWD is going to be better on slippery surfaces compared to our FWD cars for sure.
 

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Quite frankly, it was your earlier post that piqued my interest on the topic:

"I suspect there will soon be YouTube videos explaining how lousy the Rav4 Hybrid AWD system is!"

At least now I know you do not dislike the AWD system but are suggesting many drivers will hate it.

Apart from the conditions mentioned in the manual, I only wonder if Toyota missed anything. I'm sure the Toyota AWD is going to be better on slippery surfaces compared to our FWD cars for sure.
That post was tongue-in-cheek. I was only suggesting that there are some who think every AWD vehicle should be able to handle every conceivable situation. That's not practical in a vehicle aimed at folks who just want a little better traction in the snow. There's a reason why the best AWD systems are on the most expensive vehicles.

AWD is a pretty mature technology so the chances of Toyota (or any other manufacturer) missing something in the development is pretty unlikely. I'm sure the Rav4 Hybrid system meets every design criterion that was established at the beginning of the program. I'm equally sure that those criteria do not include driving off-road because that's not what the target audience who is buying this vehicle is going to do.

Check out this article:

10 Tricks All-Wheel Drive Car Buyers Need to Know
 

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Quite frankly, it was your earlier post that piqued my interest on the topic:

"I suspect there will soon be YouTube videos explaining how lousy the Rav4 Hybrid AWD system is!"

At least now I know you do not dislike the AWD system but are suggesting many drivers will hate it.

Apart from the conditions mentioned in the manual, I only wonder if Toyota missed anything. I'm sure the Toyota AWD is going to be better on slippery surfaces compared to our FWD cars for sure.
I haven't seen or heard any complaints on the Highlander Hybrid AWD or Lexus NX 300h AWD or the Lexus RX Hybrid AWDs, which use the same type of AWD systems. I think folks driving their RAV4 hybrids on the roads for everyday driving, folks will be pleased with the AWD. If your expecting to go off road or compete against vehicles designed for off-roading, you purchased the wrong car.
 

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I haven't seen or heard any complaints on the Highlander Hybrid AWD or Lexus NX 300h AWD or the Lexus RX Hybrid AWDs, which use the same type of AWD systems. I think folks driving their RAV4 hybrids on the roads for everyday driving, folks will be pleased with the AWD. If your expecting to go off road or compete against vehicles designed for off-roading, you purchased the wrong car.
No, that is not our intent, the manual specific says the RAV4 is not for off-roading.
 

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That post was tongue-in-cheek. I was only suggesting that there are some who think every AWD vehicle should be able to handle every conceivable situation. That's not practical in a vehicle aimed at folks who just want a little better traction in the snow. There's a reason why the best AWD systems are on the most expensive vehicles.

AWD is a pretty mature technology so the chances of Toyota (or any other manufacturer) missing something in the development is pretty unlikely. I'm sure the Rav4 Hybrid system meets every design criterion that was established at the beginning of the program. I'm equally sure that those criteria do not include driving off-road because that's not what the target audience who is buying this vehicle is going to do.

Check out this article:

10 Tricks All-Wheel Drive Car Buyers Need to Know
Item #10 sounds like what Toyota did:
10. What would Tony do?
Our final question for Tony was carefully crafted for all the hardcore auto enthusiasts and engineers out there, and having the undivided attention of an AWD specialist seems like a fine time to throw this kind of question out there: If he were going to have a say in the designing of an AWD system, what would he do differently? Why?

His answer was surprising, as it had more to do with an interest in cabin design than anything else. “I would be very interested in designing an AWD system using independent electric motors located in the wheels at all corners. While unsprung weight would increase, [thus] drastically affecting handling of the vehicle, the space that would be opened up in the cabin would be incredible. There would be nothing more than a battery pack which would be integrated into the lower structure of the vehicle, leaving a completely open space for interior design.”
 

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Item #10 sounds like what Toyota did:
10. What would Tony do?
Our final question for Tony was carefully crafted for all the hardcore auto enthusiasts and engineers out there, and having the undivided attention of an AWD specialist seems like a fine time to throw this kind of question out there: If he were going to have a say in the designing of an AWD system, what would he do differently? Why?

His answer was surprising, as it had more to do with an interest in cabin design than anything else. “I would be very interested in designing an AWD system using independent electric motors located in the wheels at all corners. While unsprung weight would increase, [thus] drastically affecting handling of the vehicle, the space that would be opened up in the cabin would be incredible. There would be nothing more than a battery pack which would be integrated into the lower structure of the vehicle, leaving a completely open space for interior design.”
How big is the hump in the current gas model of the RAV4 AWD? I don't remember.
 

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Bottom line is that if you lose forward momentum the system *may* shut you down and refuse to move. So in that case, the secret is to not lose forward momentum. Its mainly an issue when negotiating an incline at low speed.
I believe this thread explains more about that. Presuming the statements made in it are accurate, they are probably something of which every RAV4 Hybrid AWD owner should be aware:

http://www.rav4world.com/forums/109-4-4-electric-rav4-hybrid-ev/213186-awd-sure.html#post1994786

Clearly the hybrid AWD system is very different than the non-hybrid AWD system, and has some more limitations when it comes to being able to send power to the rear wheels.

.
 
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