jmcraney

This problem has been discussed in several other threads. Lexus seems unable or unwilling to provide a solution. This condition can be hazardous in certain situations. I urge anyone who is experiencing this problem to enter a complaint at: http://SaferCar.gov

Here are some links that might provide additional insight:

https://www.clublexus.com/forums/ls4...-problems.html

https://www.clublexus.com/forums/ls4...il-change.html

newday95

iTrader: (1)

2010 has this problem too or just 2007 - 09 problem ?????????????

I8ABMR

WOW I didnt think it was this bad. Thats crappy if Lexus leaves its flagship owners with a mess on their hands. People in this segment have options generally and they should coddle LS owners not leave them on their own to solve issues or worse yet trading in their cars

RudyRC51

Forgive me for the rookie question but my CPO warranty recently ran out... will the dealership cover this service if I provide hem this L-SB-0033-08???????

My 2007 does do this hesitantion once in awhile.. mostly i notice it on the freeway with my "power" mode off from cruising speed to passing speed. Seems like it takes a second to think what gear to select then takes off but it does lose power for a split sec, i thought this was something that just happens with this heavy/multi gear car... Never had a 5 second delay at a stop light but slamming the pedal does have a lag

jlawr

RudyRC51
Doubt it will be free, but worth doing.

nokiafan88

I have an 08 CPO and I brought it into my local dealership. I have had an on going problem with loss of acceleration and weird transmission shifting points. So long story short, theres a TSB on here some where and they performed an ECU update and seriously it drives so much better and no loss of acceleration or lack of power yet but its only been a day but this had remedied the problem with other customers that goes to the same dealership. MY CPO covered it so I think you would have to pay Lexus to have them service it

jlawr

See post #19

Trumpanche

Just a data point for y'all. Last month I purchased an '07 LS460 with ~95,000 miles on it from CarMax and soon after bringing it home, I was experiencing acceleration problems. The car could be jerky during stop and go traffic (which my passengers found annoying enough to complain about) and hesitate when I needed to accelerate, sometimes from a stop, but more frequently in part throttle conditions just keeping up with traffic. At first I suspected a transmission issue (felt like what I imagined a slipping torque converter might feel like), but based on these Club Lexus threads, I believed I had narrowed it down to being related to the Hesitation on Acceleration TSIB L-SB-0033-08.

I brought the car back to CarMax in the 30 day warranty period and they confirmed the issue and had it sent to Lexus to diagnose per the TSIB I handed them. The Lexus service rep told me that the car's ECU had never been updated, so they performed the update and, for the the last couple of weeks, the car has driven flawlessly. I asked the tech specifically if there was a risk that my car would need the cylinder heads replaced (I was worried that my used car warranty was only 30 days), and he assured me that their diagnostic specialist was positive that my car is not a candidate for needing that fix (I didn't press him for exactly how he knew).

I would recommend, as a layman, that if you have an '07 LS460, even if you aren't sure if you have the issue, it's probably wise to get the latest ECU programming. I have a feeling that the previous owner was living with this issue for thousands of miles, but couldn't pin-point it enough (without y'all's help) to ask the dealer about it and just suffered it. Anyway - that's my two cents!