transmission
#1
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transmission
as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
#2
as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
GL
#3
Tech Info Resource
iTrader: (2)
as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
#6
Lexus Test Driver
iTrader: (7)
as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
#7
mine does this... happens about once a month... thought it was my driving style but figured out it wasnt. also thought it was cus the tranny was cold but wasnt that either. the last time it happened, drove on freeway for 30 min. then exited and drove local for another 20 min. then all of a sudden it was stuck in second for a good 10 seconds. i even let go of the throttle then re-accelerated but still stuck. knew it wasnt my driving style since it was raining and i was driving very slow... LoL im stumped also but know the techs wont be able to duplicate the problem since it happens once a month. i did do a trans service about 2 weeks ago and hasnt happened since. possible clog in the valve body for the trans? dunno... we'll see...
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#8
ive never heard such a problem. thats quite odd that multiple reports have it at the same gear (2nd). hopefully its nothing major, and more importantly that there is a fix for this problem soon. when i first read the OP, i did agree with 12ichard- there mite be a clog or something preventing the gear to change.
#9
Lead Lap
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mine does this... happens about once a month... thought it was my driving style but figured out it wasnt. also thought it was cus the tranny was cold but wasnt that either. the last time it happened, drove on freeway for 30 min. then exited and drove local for another 20 min. then all of a sudden it was stuck in second for a good 10 seconds. i even let go of the throttle then re-accelerated but still stuck. knew it wasnt my driving style since it was raining and i was driving very slow... LoL im stumped also but know the techs wont be able to duplicate the problem since it happens once a month. i did do a trans service about 2 weeks ago and hasnt happened since. possible clog in the valve body for the trans? dunno... we'll see...
#10
I thought this happens only in automatic transmission mode, when you are accelerating really fast and then let off the gas. Doesn't it have something to do with the transmission expecting you to keep accelerating so it holds the gear to prevent... ?
Also, the solution is to flick the shifter into manual. You can then upshift or just flick it back to automatic.
Also, the solution is to flick the shifter into manual. You can then upshift or just flick it back to automatic.
#11
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as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
#12
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Same issue here. Always 2nd gear. Throwing the shifter into M solves it, otherwise it will eventually upshift if you let up on the throttle, but it takes a good 5-10 seconds as others have reported. No mods to my '08.
I haven't noticed if it's related to a TRAC event but it certainly could be as it seems to be happening more often in snowy/icy conditions.
I haven't noticed if it's related to a TRAC event but it certainly could be as it seems to be happening more often in snowy/icy conditions.
#13
Instructor
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I have noticed same issue with mines....It has been doing it for a while now!!! Another issue i have noticed few times lets say when i am cruising on highway doing 80mph and i step on the accelerator it downshifts fine as it supposed to but before upshifting the RPMS go up like 300-500 RPM and then drops down as it has upshifted!!! Not sure what the problem is...But i have recorded the issue as i know when i go to dealership they will say its normal
#14
Lexus Test Driver
as many of you know, when the transmission is in drive and you accelerate hard, sometimes the transmission cannot shift out of second gear for four -- eight seconds, even if you pull the upshift paddle. have any of your dealers been able to fix this for you? is it a software problem in the ECU?
I asked the dealer at one time if there were any TCU updates and was told at that time there were not.
#15
Lexus Test Driver