Prius - is the honeymoon over?

Art wrote:

> That is nonsense. That would only be true when you first own the car.
> After the AT learns about the driver and the drivetrain, there should be no
> hesitation.

True. Except the software routinely seems to reset itself and
go brain-dead, hence the widespread problems. My friend has
the same six speed transmission as used in several of the Lexus
cars(or one virtually identical, IIRC)in his 2004 4-Runner and
it has no adaptive learning nonsense. Runs like a Swiss watch.

Joseph Oberlander wrote:
> Art wrote:
>
>> That is nonsense. That would only be true when you first own the
>> car. After the AT learns about the driver and the drivetrain, there
>> should be no hesitation.
>
> True. Except the software routinely seems to reset itself and
> go brain-dead, hence the widespread problems. My friend has
> the same six speed transmission as used in several of the Lexus
> cars(or one virtually identical, IIRC)in his 2004 4-Runner and
> it has no adaptive learning nonsense. Runs like a Swiss watch.

You are in error about that Joey. ALL of Toyota's post 1997 (approx) have
an "adaptive learning" capability in their electronic automatics. This
feature has been enhanced in subsequent years.

Philip wrote:

> Joseph Oberlander wrote:
>
>>Art wrote:
>>
>>
>>>That is nonsense. That would only be true when you first own the
>>>car. After the AT learns about the driver and the drivetrain, there
>>>should be no hesitation.
>>
>>True. Except the software routinely seems to reset itself and
>>go brain-dead, hence the widespread problems. My friend has
>>the same six speed transmission as used in several of the Lexus
>>cars(or one virtually identical, IIRC)in his 2004 4-Runner and
>>it has no adaptive learning nonsense. Runs like a Swiss watch.
>
>
> You are in error about that Joey. ALL of Toyota's post 1997 (approx) have
> an "adaptive learning" capability in their electronic automatics. This
> feature has been enhanced in subsequent years.

His exact model doesn't, IIRC.

Art wrote:

> I would guess then the problem isn't the adaptive learning but a glitch
> making it forget what it learned. On Chrysler you can disconnect the
> battery for a while to make the car forget what it learned and start all
> over or clear memory with the proper scanning tool.

That would be my guess, too. Of course, it may also be that the
"adaptive" part of the AI routine is trying to think too much
and if you do something odd like swerve to avoid something or
stomp hard on the gas suddenly, it thinks that a new "driver"
is at the wheel.