Ls500 trans issue fix! - shift bump when slowing to a stop / r to d shift delay
Pole Position
Joined: Jan 2007
Posts: 340
Likes: 51
From: CA
Driver School Candidate
Joined: Mar 2009
Posts: 2
Likes: 2
From: ca
LS 500 transmission problem
2018 LS 500 Purchased Feb. 2018
Transmission has a bump after shifting from reverse to drive since I purchased the car.
Four to five times in the last eight months the car will only accelerate to 8 mph and no faster for the first hundred feet when going from reverse to drive. I must shut the car off and restart to correct this problem. The cars behind me really get pissed when I have to stop and restart. To keep from holding up traffic I recently found if I keep pumping the accelerator fast then the engine will shutter and vibrate then it will start to accelerate.
Today (12/19) this problem with very slow acceleration happened when backing into the street from my drive. Car refused to accelerate in reverse. This is a first time it happened when backing up. Again, in would not go over 8 mph when I shifted into drive. This was very dangerous. The on coming traffic had to brake fast because I was going so slow in reverse as I backed into the street trying to get to the other side of center. I have to back out rapidly on this very busy two-lane road. This will be the four time I have taken the car into the service center to complain about this acceleration problem. The last time the service manager drove the car and said there was a definite bump in the transmission but they would have to wait until the factory came up with a computer programing fix. I read this week the factory had a fix two months ago and I was never contacted. A number of LS 500 owners have had this bump problem. My wife refuses to drive our new car it really scares her. How close are we to the lemon law?
1/4/19
Service was done on my car on 12/20/18 for updating the cars computer with a factory app to solve the above problem with the car not accelerating after shifting from reverse to drive. This morning it happened again. (1/4/19) Backed out of my drive at 8:30 am. Traffic was heavy so I had to back out rapidly when a space opened up in the east bound lane. Stopped then shifted in to drive the car would only go eight miles per hour. The car in back of me started honking his horn because I was crawling along. From past experience I knew if I kept pumping the throttle fast the engine would stutter and start to accelerate. I now have a new car that my wife will not drive
11/27/19
Thia transmission problem of only going 8 mph when shifting from reverse to drive happened again this morning.
12/9/19
Factory rep is now involved will see how Lexus plans to correct this serious problem that has been going on for twenty months. The dealer, South Bay Lexus, always states the factory has to correct this problem not them.
Transmission has a bump after shifting from reverse to drive since I purchased the car.
Four to five times in the last eight months the car will only accelerate to 8 mph and no faster for the first hundred feet when going from reverse to drive. I must shut the car off and restart to correct this problem. The cars behind me really get pissed when I have to stop and restart. To keep from holding up traffic I recently found if I keep pumping the accelerator fast then the engine will shutter and vibrate then it will start to accelerate.
Today (12/19) this problem with very slow acceleration happened when backing into the street from my drive. Car refused to accelerate in reverse. This is a first time it happened when backing up. Again, in would not go over 8 mph when I shifted into drive. This was very dangerous. The on coming traffic had to brake fast because I was going so slow in reverse as I backed into the street trying to get to the other side of center. I have to back out rapidly on this very busy two-lane road. This will be the four time I have taken the car into the service center to complain about this acceleration problem. The last time the service manager drove the car and said there was a definite bump in the transmission but they would have to wait until the factory came up with a computer programing fix. I read this week the factory had a fix two months ago and I was never contacted. A number of LS 500 owners have had this bump problem. My wife refuses to drive our new car it really scares her. How close are we to the lemon law?
1/4/19
Service was done on my car on 12/20/18 for updating the cars computer with a factory app to solve the above problem with the car not accelerating after shifting from reverse to drive. This morning it happened again. (1/4/19) Backed out of my drive at 8:30 am. Traffic was heavy so I had to back out rapidly when a space opened up in the east bound lane. Stopped then shifted in to drive the car would only go eight miles per hour. The car in back of me started honking his horn because I was crawling along. From past experience I knew if I kept pumping the throttle fast the engine would stutter and start to accelerate. I now have a new car that my wife will not drive
11/27/19
Thia transmission problem of only going 8 mph when shifting from reverse to drive happened again this morning.
12/9/19
Factory rep is now involved will see how Lexus plans to correct this serious problem that has been going on for twenty months. The dealer, South Bay Lexus, always states the factory has to correct this problem not them.
Last edited by Dick32; Dec 10, 2019 at 10:30 AM. Reason: update on transmission problem
2018 LS 500 Purchased Feb. 2018
Transmission has a bump after shifting from reverse to drive since I purchased the car.
Four to five times in the last eight months the car will only accelerate to 8 mph and no faster for the first hundred feet when going from reverse to drive. I must shut the car off and restart to correct this problem. The cars behind me really get pissed when I have to stop and restart. To keep from holding up traffic I recently found if I keep pumping the accelerator fast then the engine will shutter and vibrate then it will start to accelerate.
Today (12/19) this problem with very slow acceleration happened when backing into the street from my drive. Car refused to accelerate in reverse. This is a first time it happened when backing up. Again, in would not go over 8 mph when I shifted into drive. This was very dangerous. The on coming traffic had to brake fast because I was going so slow in reverse as I backed into the street trying to get to the other side of center. I have to back out rapidly on this very busy two-lane road. This will be the four time I have taken the car into the service center to complain about this acceleration problem. The last time the service manager drove the car and said there was a definite bump in the transmission but they would have to wait until the factory came up with a computer programing fix. I read this week the factory had a fix two months ago and I was never contacted. A number of LS 500 owners have had this bump problem. My wife refuses to drive our new car it really scares her. How close are we to the lemon law?
1/4/19
Service was done on my car on 12/20/18 for updating the cars computer with a factory app to solve the above problem with the car not accelerating after shifting from reverse to drive. This morning it happened again. (1/4/19) Backed out of my drive at 8:30 am. Traffic was heavy so I had to back out rapidly when a space opened up in the east bound lane. Stopped then shifted in to drive the car would only go eight miles per hour. The car in back of me started honking his horn because I was crawling along. From past experience I knew if I kept pumping the throttle fast the engine would stutter and start to accelerate. I now have a new car that my wife will not drive
Transmission has a bump after shifting from reverse to drive since I purchased the car.
Four to five times in the last eight months the car will only accelerate to 8 mph and no faster for the first hundred feet when going from reverse to drive. I must shut the car off and restart to correct this problem. The cars behind me really get pissed when I have to stop and restart. To keep from holding up traffic I recently found if I keep pumping the accelerator fast then the engine will shutter and vibrate then it will start to accelerate.
Today (12/19) this problem with very slow acceleration happened when backing into the street from my drive. Car refused to accelerate in reverse. This is a first time it happened when backing up. Again, in would not go over 8 mph when I shifted into drive. This was very dangerous. The on coming traffic had to brake fast because I was going so slow in reverse as I backed into the street trying to get to the other side of center. I have to back out rapidly on this very busy two-lane road. This will be the four time I have taken the car into the service center to complain about this acceleration problem. The last time the service manager drove the car and said there was a definite bump in the transmission but they would have to wait until the factory came up with a computer programing fix. I read this week the factory had a fix two months ago and I was never contacted. A number of LS 500 owners have had this bump problem. My wife refuses to drive our new car it really scares her. How close are we to the lemon law?
1/4/19
Service was done on my car on 12/20/18 for updating the cars computer with a factory app to solve the above problem with the car not accelerating after shifting from reverse to drive. This morning it happened again. (1/4/19) Backed out of my drive at 8:30 am. Traffic was heavy so I had to back out rapidly when a space opened up in the east bound lane. Stopped then shifted in to drive the car would only go eight miles per hour. The car in back of me started honking his horn because I was crawling along. From past experience I knew if I kept pumping the throttle fast the engine would stutter and start to accelerate. I now have a new car that my wife will not drive
Rookie
Joined: May 2022
Posts: 29
Likes: 3
From: FL
Any update on this?
Sometimes, when shifting between Park/Drive/Neutral, I experience a jerk too (not all the time).
Don't know if it's worth mentioning, I have the automatic emergency brake feature on.
So the emergency brake turns on when I put the car into Park gear.
Sometimes, when shifting between Park/Drive/Neutral, I experience a jerk too (not all the time).
Don't know if it's worth mentioning, I have the automatic emergency brake feature on.
So the emergency brake turns on when I put the car into Park gear.
Rookie
Joined: May 2022
Posts: 29
Likes: 3
From: FL
I had a very different problem today with the transmission - I had already come to a stop and went to put the car in Park. There was a rather big lurch and the car jumped forward a bit. I then put it in drive and I felt the same lurch. I drove the car forward a few feet put it in park - this time there was no jerk. I turned off the engine and turned it back on. The transmission has not exhibited that jerky behavior again. My car has less than 600 miles on it. I have had this LSB listed above applied.
Sometimes, when shifting between Park/Drive/Neutral, I experience a jerk too (not all the time).
Don't know if it's worth mentioning, I have the automatic emergency brake feature on.
So the emergency brake turns on when I put the car into Park gear.
Instructor
Joined: Apr 2004
Posts: 1,108
Likes: 34
From: California
Any update on this?
Sometimes, when shifting between Park/Drive/Neutral, I experience a jerk too (not all the time).
Don't know if it's worth mentioning, I have the automatic emergency brake feature on.
So the emergency brake turns on when I put the car into Park gear.
Sometimes, when shifting between Park/Drive/Neutral, I experience a jerk too (not all the time).
Don't know if it's worth mentioning, I have the automatic emergency brake feature on.
So the emergency brake turns on when I put the car into Park gear.
Did you do the TSB?
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