2004 Lexus LS430 Vehicle speed control Problems
- Complaints
- 5about this part
- Share
- 18%of 28 total for the year
- Median mileage
- 42,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the vehicle speed control of the 2004 Lexus LS430, 18% of the 28 complaints for this model year. Where a mileage was given, the median is 42,500 miles. 3 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have a 2004 Lexus ls 430 that has a random problem that the dealers tell me is normal. On occasion when I roll to a stop the car lunges forward on its own forcing me to apply extreme pressure on the brake to stop the vehicle. It accelerates just for a split 2nd then stops. I have learned to stop approx. 20' behind a vehicle just in case the car decides it wants to lunge forward. This has happened no less than 6 times since we purchased the vehicle new in 10/2003. I have explained the problem to the dealer at least 4 times and they tell me they can not find a problem and its normal. …”
NHTSA complaint #10313107, filed 2010-02, 2,000 miles“When pulling into parking space at a low speed (2 MPH) car suddenly accelerated even though accelerator pedal was not being depressed. Operator's foot was on brake pedal the entire time but car would not stop until it hit a parked vehicle. At the time the car was being turned to the right coming into the parking space. There was a high curb (~10 inches high) at the front of the parking space and a median but the car jumped over this and struck the parked on the other side of the median.”
NHTSA complaint #10959529, filed 2017-03, 151,000 miles“Sudden uncontrolled acceleration of 2004 Lexus LS430: owner was in parking garage beginning to exit garage from parking place when Lexus suddenly accelerated uncontrollably. Owner applied brake pedal but could not stop the Lexus. Owner steered Lexus to avoid hitting other vehicles and collided with medical office building, glanced off side of building and collided head-on with electrical power transformer. Owner was seriously injured. (lawyer wrote in on behalf of his client). Updated ivoq 06/03/10.”
NHTSA complaint #10324726, filed 2010-04, 22,000 miles“The contact owns a 2004 Lexus LS430. The contact stated that while driving at 5 MPH, the vehicle suddenly accelerated while her foot was on the brake pedal. The vehicle crashed into a parked vehicle. There were no injuries. The contact called the manufacturer and was told that someone would contact her in 6-8 weeks. The failure mileage was approximately 63,000.”
NHTSA complaint #10329281, filed 2010-05, 63,000 miles“The consumer's 2004 Lexus ls 430 hesitated intermittently while accelerating to enter a highway. The vehicle was taken to the dealer twice and all they said was that the vehicle had to learn the consumer's driving habits and it would correct itself. They also said the would burn something into the computer board. The vehicle hesitated again while the consumer was making a left turn from a very low speed. After a few seconds the vehicle finally accelerated before the vehicle was hit by oncoming traffic.”
NHTSA complaint #10145358, filed 2005-12Related service bulletins
- 10045639Jul 10, 2012Lexus: precaution information on removal, inspection, installation of accelerator pedal sensor assembly, which requires no lubrication. Models 2001-13 ct200h, es300, 300h, 330…
- 10018446Nov 1, 2005Repair manual supplement: laser cruise control beam axis adjustment.
Vehicle speed control: other model years
Other parts of the 2004 Lexus LS430
4 complaintsSteering
3 complaintsBody and structure
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsBrakes
2 complaintsEngine cooling
2 complaintsWheels
2 complaintsElectrical system
1 complaintsEngine
1 complaintsEquipment
1 complaintsFuel system
1 complaints
← All problems reported for the 2004 Lexus LS430
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology