LS430 shift pattern upgrade available
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Driver
Joined: Nov 2003
Posts: 126
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From: Washington
LS430 shift pattern upgrade available
I just got a call from my dealer - apparently there is a software shift pattern upgrade that they are just rolling out now to improve the low speed jerkiness/hesitation of the 6-speed transmissions.
This was the last remaining issue I had with my LS430 - if this really does fix the problem I will be one happy camper.
I'll know by Friday evening.
This was the last remaining issue I had with my LS430 - if this really does fix the problem I will be one happy camper.
I'll know by Friday evening.
Thread Starter
Driver
Joined: Nov 2003
Posts: 126
Likes: 1
From: Washington
I had the software upgrade completed this morning and have completed one 20 mile journey back from the dealer to my office.
As anyone with this problem knows the symptoms are somewhat intermittent - some days it can be better than others - so I would treat this preliminary feedback with a little caution.
If I were to answer the simple question: "Is it better after the change?" the answer would be yes.
Do I still experience the hesitation/jerkiness at low speeds (accelerating in traffic at or below 10mph)? It appears to be better.
It also appears to have made an improvement at higher speeds, seemingly being the right gear more often as I respond to changing traffic conditions, giving the impression of more smoothness.
One thing that I realized is that I am sensitized to the problem and so it might take me a little while to "unlearn" this and just drive normally - if I can forget to think about accelerator position as I drive then I will judge this upgrade a complete success.
I will update my impressions over the next few days as I put more miles on the car.
As anyone with this problem knows the symptoms are somewhat intermittent - some days it can be better than others - so I would treat this preliminary feedback with a little caution.
If I were to answer the simple question: "Is it better after the change?" the answer would be yes.
Do I still experience the hesitation/jerkiness at low speeds (accelerating in traffic at or below 10mph)? It appears to be better.
It also appears to have made an improvement at higher speeds, seemingly being the right gear more often as I respond to changing traffic conditions, giving the impression of more smoothness.
One thing that I realized is that I am sensitized to the problem and so it might take me a little while to "unlearn" this and just drive normally - if I can forget to think about accelerator position as I drive then I will judge this upgrade a complete success.
I will update my impressions over the next few days as I put more miles on the car.
Thread Starter
Driver
Joined: Nov 2003
Posts: 126
Likes: 1
From: Washington
UPDATE:
I have put 100 miles on the car since the software update and the good news is that the car is noticably smoother than before across the entire speed range.
Low speed driving around town is now a pleasure - slow speed corners now seem effortless with no sense of being in too low a gear - cruising around parking lots looking for a space are no longer a feather-the-throttle balancing act.
10mph pick up is easier - I wouldn't say it's perfect but it is significantly easier to coast and go than before.
As others have pointed out resetting the ECU can have a positive (temporary) effect and so I need to drive it another week before being 100% convinced this has resolved the problem, but so far so good.
I have put 100 miles on the car since the software update and the good news is that the car is noticably smoother than before across the entire speed range.
Low speed driving around town is now a pleasure - slow speed corners now seem effortless with no sense of being in too low a gear - cruising around parking lots looking for a space are no longer a feather-the-throttle balancing act.
10mph pick up is easier - I wouldn't say it's perfect but it is significantly easier to coast and go than before.
As others have pointed out resetting the ECU can have a positive (temporary) effect and so I need to drive it another week before being 100% convinced this has resolved the problem, but so far so good.
Originally posted by Mandingo
UPDATE:
I have put 100 miles on the car since the software update and the good news is that the car is noticably smoother than before across the entire speed range.
Low speed driving around town is now a pleasure - slow speed corners now seem effortless with no sense of being in too low a gear - cruising around parking lots looking for a space are no longer a feather-the-throttle balancing act.
10mph pick up is easier - I wouldn't say it's perfect but it is significantly easier to coast and go than before.
As others have pointed out resetting the ECU can have a positive (temporary) effect and so I need to drive it another week before being 100% convinced this has resolved the problem, but so far so good.
UPDATE:
I have put 100 miles on the car since the software update and the good news is that the car is noticably smoother than before across the entire speed range.
Low speed driving around town is now a pleasure - slow speed corners now seem effortless with no sense of being in too low a gear - cruising around parking lots looking for a space are no longer a feather-the-throttle balancing act.
10mph pick up is easier - I wouldn't say it's perfect but it is significantly easier to coast and go than before.
As others have pointed out resetting the ECU can have a positive (temporary) effect and so I need to drive it another week before being 100% convinced this has resolved the problem, but so far so good.
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