Tl* the contact owns a 1999 lexus ls400. The contact stated that while driving 15 MPH, he applied the brake due to traffic. However, the vehicle accelerated independently and crashed into the rear of another vehicle. The crash caused damage to both vehicles as well as an injured knee of the driver of the vehicle that was struck. The failure had recurred numerous times. The dealer was notified and he was informed the throttle body would probably need to be replaced. Also, he was informed that due to the type of failure he would have to contact the manufacturer. The manufacturer was notified and informed the contact that the legal department would have to be notified but offered no other assistance. The failure mileage was 130,000 and current mileage was 145,000. Updated 02/19/13
1999 Lexus LS400 acceleration problems
12 complaints (55% of all complaints for this car). Typical mileage when it fails: 65,869. 6 crashes reported.
- owner complaints
- 12
- of this car's complaints
- 55%
- typical mileage
- 65,869
- crashes
- 6
- recalls
- 0
Which part fails
- Linkages1
- Accelerator pedal1
At what mileage
Complaints by mileage at the time of the problem.
Lexus LS400 acceleration problems in other years
Specific symptoms reported on the 1999 Lexus LS400 acceleration
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Unintended engine speed increase/sa
On may 13, 2003 the federal safety agency received an april 25, 2003 letter from mr. Peter boddaert petitioning the agency to conduct a petition analysis of certain 1997 through 2000 model year lexus 300 and 400 series vehicles for problems of vehicle speed control linkages which results in sudden, unexpected excessive (vehicle) acceleration even though there is no pressure [sic]applied to the accelerator pedal.in support of his petition, mr. Boddaert cites a number of odi reports concerning vehicle speed control linkages in the subject vehicles.included amongst the thirty-six reports he cites is one involving a lexus that collided with five other cars in the space of one-half mile before it could be stopped.odi found no data indicating the existence of a defect trend related to the petitioner's allegations at this time.therefore, there is no reasonable possibility that an order concerning the notification and remedy of a safety-related defect would be issued as a result of granting mr. Boddaert's petition.consequently, in view of the need to allocate and prioritize the federal safety agency's limited resources to best accomplish the agency's safety mission, the petition is denied.
DP03003
What 1999 Lexus LS400 owners say
Most recent owner complaints, unedited.
I am reporting this because it might provide a clue to the toyota racing engine problem. On each of two days before I took my 1999 lexus 400 to the dealer for repairs, the engine would race at an estimated 4,000+ rpms and emitted a grinding sound as the car was started. After turning off the engine with the key, the car would restart without a problem. Strangely, the dealer did not record this particular complaint, but stated that diagnosis revealed that starter was failing. I was charged $990 for replacement and repairs. I could not get a satisfactory answer as to why a faulty starter would cause the engine to race. I have driven the car over 10,000 miles since then without a problem.
I'm writing this in the hopes that it may be of some help in toyotas brake problem. My 1999 lexus ls400 would loose throttle control, the engine speed would drop to idle regardless of what was done to the throttle itself. After 3 trips to the dealer, they found that the throttle position sensor would not work if it had become wet. They replaced the tps and that cured the problem.
1999 lexus ls 400. Sudden acceleration.
Lexus ls 400 1999 model. Dangerous hesitation upon acceleration. Further after driving this car for two years, I have neck pains from the daily whiplash. Toyota is igrnoring this system wide. It is an outrage. Its damaging peoples necks all over the country. They will not fix it - they claim its normal. Other dealers are telling customers about it - - my wife refuses to drive my car - it's dangerous!
While driving 2 MPH, the vehicle accelerated uncontrollably. The consumer was unable to maintain control of the vehicle and crashed into a building. Upon impact, both frontal air bags failed to deploy. The vehicle was towed to the dealer for inspection. *ak the consumer was pulling into a parking space, slowly, with his foot on the brake when the vehicle suddenly accelerated, went over the curb and into the side of the building. *sc
Petition seeking the federal safety agency to investigate the lexus vehicles model years 1997 to 2000 which have experienced problems with speed control linkages resulting in sudden acceleration. *mr the vehicle suddenly accelerated without warning which caused the vehicle to rear end the vehicle ahead of his. As a result the consumer received a police citation. The dealer was unable to duplicate the problem (odi# 760680). *scc
Engine revs to extremely high RPM ( ~5000 ) with no throttle input from driver. This problem has occurred twice on this vehicle recently . The second time this occurred was after engaging reverse gear. Fortunately the breaks were able to restrain the vehicle. In neither incident was my foot on the accelerator.
It was raining and I was entering highway, I had my left turn signal on and started to accelerate. The car started to fish tail and when into a 360 degree spin, maybe twice, at least 1 1/2 times. When I came out of spin I crashed into the cement median. At no time did the vsc (vehicle skid control) activate. It is something that you can't miss. A lound warning sound comes on and the dashboard lights up with a skid warning. It had happened once before in the snow.
The throttle sensor failed causing the vehicle to suddenly stop while driving or causing it to start but the car would not rev when depressing the accelerator, the consumer was told that the grease from the throttle cable assembly can migrate down onto the throttle sensor interfering with its operation. Nlm
Questions about the 1999 Lexus LS400 acceleration
Does the 1999 Lexus LS400 have acceleration problems?
Owners have filed 12 complaints about the acceleration of the 1999 Lexus LS400, 55% of all its complaints, more than any other problem.
At what mileage do 1999 Lexus LS400 acceleration problems start?
The typical (median) mileage in owner complaints is 65,869 miles.
Was there a recall on the 1999 Lexus LS400 acceleration?
There is no recall for this problem on this model year.
What year does the Lexus LS400 have the most acceleration problems?
The Lexus LS400 model years with the most acceleration complaints are 1998 (14 complaints) and 1999 (12 complaints).
Other 1999 Lexus LS400 problems
Electrical 4Body 2Tires 2Brakes 1Engine 1Lights 1Seat belts 1Steering 1Transmission 1
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