IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Something unusual

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Old 01-27-17, 09:46 AM
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ARM350F
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Default Something unusual

So the other day I was being a hooligan driving around in manual and I downshifted into first, and it slammed on the revlimiter. While I admit it was great as I was catching an RCF, I was under the impression that our cars wouldn't do this. Has anyone else experienced this?
Old 01-27-17, 10:28 AM
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jkonquer
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Only if you Fully disengage the Traction Control.
Old 01-27-17, 07:34 PM
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ARM350F
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I know that what was unusual is that it did that with traction control on, and even then isn't the computer supposed to prevent such shifts.
Old 01-28-17, 07:58 AM
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dnasians
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Originally Posted by jkonquer
Only if you Fully disengage the Traction Control.
not sure if turning off the traction control has any affect on shifts.

Originally Posted by ARM350F
I know that what was unusual is that it did that with traction control on, and even then isn't the computer supposed to prevent such shifts.
the Lexus will not let you shift into a gear that's too low for your speed. the first gear in the 8-speed 350 is really short. if you were already rolling at a decent pace, I doubt if the car really let you shift into first.

p.s. catching an RCF? lol
Old 01-28-17, 04:09 PM
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arentz07
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Originally Posted by dnasians
not sure if turning off the traction control has any affect on shifts.
In cars that don't have Sport+ mode, yes, it does. My IS 300 F Sport, for example, will only bounce off the revlimiter rather than upshift if in manual shift mode and VSC fully off. Discovered it by accident one day, but others on the forum have talked about it before.


OP, were you in Sport+? If so, there you go.
Old 01-29-17, 09:59 AM
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ARM350F
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Yes I was in Sport+ and traction control was on. This is why it seems unusual to me because the car shouldn't have shifted into the redline.
Old 01-29-17, 03:08 PM
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I've seen videos where it hit rev limiter, but with Sport or Sport+ and TC off.
(^ that is at about 14:32 if the link doesn't work)

Now, in the video he says it won't slam into the rev limiter "as aggressively" when you have TC on. Since I don't have a car with Sport+ I can't really go test it out. To me it sounds like this implies Sport+ allows you to hit rev limiter, too. Yes?
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