lx470man

iTrader: (1)

I a bit confused cause i dont remember the f being so rough at shifting. I put her into sport mode and did the paddles. I didnt go no where near redline prob about 4,000-5,500 rpm when i made shifts, but everytime i went for a upshift the car would shift violently. It jumps forward everytime i shift, there is no such thing as a smooth shift. is this with everyones f? cause i drive the car 90% time in normal with no paddles. And it shifts smooth, but when i have it in sport with paddles it is so violent.

lx470man

iTrader: (1)

oh also i noticed when in sport mode without paddles, and at a stop. When your making a right or left turn and you give it a bit if gas while making the turn, my car will not upshift! it will just rev all the way up to redline!!!!! WTF! i let off the gas and get back on it soft ly to let it know i want to upshift but it just keeps the gear and wont shift. It is ridiculous trying to make a simple turn and looking like an *** making a 30 mph turn in 1st gear.

ISFer

iTrader: (2)

You're probably shifting late for the amount of gas you're giving it.
The great thing about computers is that they'll determine the ideal shift point for the amount of acceleration input at the gas pedal.
If you practice a little with the shift points and don't shift early, you could probably shift a lot smoother.
If not let the computer do it and leave it in 'D'.

Make sure you're not in manual mode on those corners and it should upshift.

C.

sweetbird

iTrader: (2)

your doing it wrong! paddle mode is not ment to be drivin like an old lady! its made to go through the gears fast, if you want to drive like your mom put it back in drive! lol

hwy1isf

iTrader: (1)

Sport mode changes the shift points to a more aggressive/higher RPM. If you are in SM and begin to accelerate fairly hard, and then back off the computer seems to get confused, when that happens I just use the paddles to upshift to the desired gear.

I am personally very happy with this trans, and have taken the car to the track, and a lot of spirited driving on mountain roads. Both upshift and down shift are rapid and firm just like I like it in the manual + sport mode.

hahahaf

iTrader: (2)

i find it that its a bit jerky shifting at certain rpm
just take her to just before the beep if going fast and it should be smoother
i usually shift under 4000 if driving normal

watch how the car shifts in d when u give it a bit or a lot of gas
ull find ur sweet spot

Bulls23337

iTrader: (2)

keep in mind that in sport mode and manual shifting engaged, from gears 2-8 the torque converter is locked and engine output is direct to the wheels because it bypasses the torque converter. that is why the shifts are hard and firm when in this combination. if you're driving manual, but in normal mode, the torque converter is engaged in all gears and the shifting is smooth because the torque converter is utilized.

eXstasy

What you are describing is a welcome feature of this paddle shifted automatic transmission... not a drawback

http://www.lexus.com/models/ISF/feat...sion_Story.pdf

EDIT: It does this intentionally by design. You are feeling the effects of shifting with the torque converter locked up.

infinus

The reason it wont shift in sport mode is because the computer is assuming that since you have sport mode engaged you want to drive aggressively, like at the track for example. It has a yaw sensor and will hold the gear on a turn so when you come out of the turn you can hit the throttle and accelerate faster than if it were to automatically upshift putting you in the wrong gear for strong acceleration. Also it helps keep the vehicle balanced so your not thrown out of control by a mid-corner shift. If you don't want it to do that turn off sport mode.

CometVR4

Just curious....I don't own an F, but in Sport mode does it shift so aggressive that it chrips the tires between gears like SMG's in BMW's M5 and M3?

Joe Z

iTrader: (10)

I can spin them easily to 3rd gear......

caymandive

iTrader: (2)

Yup! Nail it right and you can even spin first through third on dry pavement in mid summer. Pretty awesome tranny if you ask me.

Zacols

Drive with the paddles on sport mode means drive aggressively. If you dislike just put on D.

jkeifer3

Mine shifts hard but will not chirp the tires.

MR2Racer28

mine shifts hard but doesnt chirp the tires either.