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
The worst 1999 Lexus LS400 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration12
- Electrical4
- Body2
- Tires2
- Brakes1
- Engine1
- Lights1
- Seat belts1
- Steering1
- Transmission1
Specific symptoms reported on the 1999 Lexus LS400
Recalls
No recalls on record for this model year.
Defect 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
Technical service bulletins for the 1999 Lexus LS400 50
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Lexus Safety Recall and Service Campaign
- POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground...
- Safety Recall and Service Campaign
- Supersession notice
- Obsolete notice
- Replacement Certification Labels
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- LSB: When servicing interior electrical switches and components, please note the precautions in this...
- The purpose of this bulletin is to provide precautions to follow when installing an automatic...
- The purpose of this service bulletin is to provide information regarding the installation of the correct...
1999 Lexus LS400 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.0L 8‑cyl | RWD | 16 | 23 | 19 |
What 1999 Lexus LS400 owners say
Most recent owner complaints, unedited.
Tl*the contact owns a 1999 lexus ls400. The contact stated that while working under the hood it started closing creating a safety hazard. The vehicle was repaired by a local mechanic. Toyota was not contacted. The VIN was not available. The failure mileage was approximately 100,000. The current mileage was 120,000.
Our 1999ls400 lexus is experiencing malfunctions with the electronics in the dash. The odometer and the speedometer are working intermittently. Lexus wants 1200.00 to pull out dash and send away to repair. I am concerned this is a huge safety issue. I don't know whose replacing what and are they certified lexus mechanics??? Are these early model ls400's having electronics problems or is this just a single case? Please let me know.
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.
Tl*the contact owns a 1999 lexus ls400. When the contact started the vehicle she noticed that the dashboard panel would no longer function. The vehicle was taken to the dealership where the contact was informed that the entire dashboard panel needed to be replaced. There were no prior warnings. The current and failure mileages were 90000. Updated 07/07/10.
1999 400ls lexus dash panel defective.
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.
The seat belts on my car do not retract or stay tight on me anymore. They continue to loosen as I drive. They are stiff almost brittle. The steering wheel does not move out like it used to. Now it moves away from the dash in an upward direction toward my face.
We have owned 3 lexus and all 3 of them have had problems with the digital radio print out. We took it to a dealer and they would replace it for over $500.00. We also contacted the customer service dept. And they would do nothing to replace it. It seem to me that such an expensive vehicle should have a radio that works.
Compare the 1999 Lexus LS400
Other model years
Questions about the 1999 Lexus LS400
Is the 1999 Lexus LS400 reliable?
Owners have filed 22 complaints about the 1999 Lexus LS400, 11.0 times a typical LS400 model year.
What is the most common problem with the 1999 Lexus LS400?
Acceleration and speed control, with 12 complaints, typically around 65,869 miles. Next is electrical (4).
How many recalls does the 1999 Lexus LS400 have?
No recalls on record.
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).
What gas mileage does the 1999 Lexus LS400 get?
Official estimates for the 1999 Lexus LS400 range from 19 mpg combined. The most efficient version (4.0L 8-cyl, RWD) gets 16 city and 23 highway.
VIN decoder
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