GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

GS450h downshift after full stop????

Thread Tools
 
Search this Thread
 
Old 03-31-09, 05:41 PM
  #1  
chopperpl
Pit Crew
Thread Starter
 
chopperpl's Avatar
 
Join Date: Mar 2008
Location: nj
Posts: 142
Received 3 Likes on 3 Posts
Question GS450h downshift after full stop????

Hi,
Anybody with hybrids have noticed this issue/behavior?
When you make a full stop, for example at the stop sign, and then floor it the car accelerates slowly for split second, and then it feels like it "downshifts" before flipping your wife's eyeballs. I have same behavior in the truck, but with longer delay before downshift...
Old 04-01-09, 09:00 AM
  #2  
Stormforge
executive matchup
 
Stormforge's Avatar
 
Join Date: Apr 2008
Location: BC
Posts: 5,771
Received 11 Likes on 9 Posts
Default

Originally Posted by chopperpl
Hi,
Anybody with hybrids have noticed this issue/behavior?
When you make a full stop, for example at the stop sign, and then floor it the car accelerates slowly for split second, and then it feels like it "downshifts" before flipping your wife's eyeballs. I have same behavior in the truck, but with longer delay before downshift...
i haven't really pushed my 450h hard yet, so i can't comment on that. but this issue you are describing - does it occur in both normal and power mode?

woohoo, my 1,000th post!
Old 04-01-09, 09:12 AM
  #3  
chopperpl
Pit Crew
Thread Starter
 
chopperpl's Avatar
 
Join Date: Mar 2008
Location: nj
Posts: 142
Received 3 Likes on 3 Posts
Default

It happens in all modes Normal, Hybrid Power, and Sport. It's weird because I don't remember this behavior during first 500 miles. I think I've red on this forum about ECU learnig period that adjusts tranny to your driving style. If that's the truth, then I would love to reset it (anybody know how?). It will be difficult to do aggresive driving for 500mls, but if that's what has to be done to correct it then why not...

...and I know for sure it is not a traction control.
Old 04-01-09, 10:32 AM
  #4  
The G Man
Lexus Test Driver
 
The G Man's Avatar
 
Join Date: Oct 2005
Location: MA
Posts: 8,698
Received 68 Likes on 56 Posts
Default

Disconnect the ECU fuse or the battery for about 10 mins to reset the tanny. I thought the hybrid have a Continuious transmission?
Old 04-01-09, 11:26 AM
  #5  
chopperpl
Pit Crew
Thread Starter
 
chopperpl's Avatar
 
Join Date: Mar 2008
Location: nj
Posts: 142
Received 3 Likes on 3 Posts
Default

Originally Posted by The G Man
Disconnect the ECU fuse or the battery for about 10 mins to reset the tanny. I thought the hybrid have a Continuious transmission?
They have, but if you listen to it closely you can tell there are ranges (I wouldn't qualify it to gears) in which tranny operates. You can get better feel of it once you switch to manual shifter (+/-).
Thanks for ECU info. I will try it this weekend.
Old 04-01-09, 11:29 AM
  #6  
chopperpl
Pit Crew
Thread Starter
 
chopperpl's Avatar
 
Join Date: Mar 2008
Location: nj
Posts: 142
Received 3 Likes on 3 Posts
Default

Originally Posted by The G Man
Disconnect the ECU fuse or the battery for about 10 mins to reset the tanny. I thought the hybrid have a Continuious transmission?
Do you know if disconnecting the battery will earase my custom POIs in NAV?
Thx
Old 04-01-09, 11:46 AM
  #7  
The G Man
Lexus Test Driver
 
The G Man's Avatar
 
Join Date: Oct 2005
Location: MA
Posts: 8,698
Received 68 Likes on 56 Posts
Default

That I am not sure about since I have never install custom POI, sorry
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
buzzed
GS - 3rd Gen (2006-2011)
9
05-11-19 04:39 AM
magmasilk
Hybrid Technology
11
11-27-14 02:34 AM
jmathew
Hybrid Technology
1
02-11-14 05:51 PM
rickyb80
Hybrid Technology
5
12-19-10 08:40 AM
ShowDiscipline
SC- 1st Gen (1992-2000)
13
03-08-02 06:02 PM



Quick Reply: GS450h downshift after full stop????



All times are GMT -7. The time now is 01:18 PM.