Car Problem Reports

Lexus LS430 Poor Shift Quality at Low Speeds

 
Lexus LS430 Problem
13 Reports
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Model Years Affected: 2001, 2003, 2004, 2005

Average Mileage: 112,597 mi (20,000 mi - 305,000 mi)

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Poor quality low speed transmission shifting may be noted. Our technicians tell us updated transmission software is available which may correct this concern.

  • Jogger, , 29,000 mi
     Rookie

    When I am at a very slow speed and step on the gas the car revs to about 2000 rpm, hestiates and then jerk and then accelerates. It is very noticable at low speeds around 5 to 10 miles per hour. But from a dead stop it seems to shift fine. I had this problem for a while know it with the low low miles is a big disappointment. Suggestions before I get beat over the head for a new tranny from the dealer?

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  • Visitor, , 80,000 mi

    Car acts like it doesnt no which gear its suppose to be in.

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  • Visitor, , 305,000 mi

    Car is slow to move
    In reverse and then jerks.

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  • Visitor, , 121,000 mi

    Downshifts from 2 to 1st too early, causing engine braking. Tranny shop shaking their heads after replacing controller, dont want whole overhaul

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  • beck1, , 133,000 mi
     Rookie

    Down shifts too early and is very jerky when you come to stop. Brakes checked and ok, Transmission checked and all fluids, etc. good, new silnoid and no change, new battery, no change. All sensors did not indicate any problem. Was told at Toyota Dealership to get new transmission. Was told by excellent repairman that he thought problem was in wiring/computer. Don't want to spend $3,000. to $4500. on transmission if that isn't problem. Looking for suggestions on what to do and what could be problem.

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  • Visitor, , 20,000 mi

    I posted this problem a while back for my 2004 Lexus LS430. I took it to the dealer and they did a software upgrade. After that the problem was fixed but the car was idling very high we hot, around 1100 rpm. Bought it back a 2nd time and with an adjustment the hot idle speed is down to 600 to 700 rpm. Now it shifts correctly. I got it in before the 9 yr warranty problem for this issue. It was a known issue and they extended the warranty....Jogger

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  • Visitor,

    Similar shifting issue.. Was told I may need a new tranny that costs 3700 from dealer. What's should I do?

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  • Visitor,

    The transmission has always felt jerky at slow speeds. Lexus always told me this was normal. I finally found a TSB that addresses this problem. After all these years of Lexus telling me this was normal, I finally got Lexus to update the computer a few months ago. It works a bit better.

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  • Visitor, , 155,780 mi

    If I want to take off from a standing start from a signal light to attempt to pass another vehicle my vehicle seems to buckle a few times and then works normally. what type of problem am I having?

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