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Vehicle speed controlPart report

1990 Lexus LS400 Vehicle speed control Problems

Complaints
2about this part
Share
8%of 24 total for the year
Median mileage
85,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 1990 Lexus LS400, 8% of the 24 complaints for this model year. Where a mileage was given, the median is 85,000 miles.

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.

“Accelerator pedal sticks and engine continues to accelerate. I can only stop it by pushing on the brake hard, putting it in neutral or turning off engine. Sometimes if I have room in front of my car, I can stop it by pumping the brake. This has occurred several times. I cannot tell what causes it. Definitely not floor mat.”

NHTSA complaint #10307216, filed 2010-02, 120,000 miles

“In approximately 1995, I experienced the sudden acceleration problem twice with my Lexus ls. At the time, no one had ever heard of it and the dealer said he could not reproduce it and could do nothing. After that I was more careful with the floor mats and thought I had solved the problem. For the last 7 to 8 years, the car suddenly slows and stalls. I have repeatedly complained to new country Lexus but they just say that they cannot reproduce the problem and don't know what it is. In june, it happened again and I had to be towed by aaa. …”

NHTSA complaint #10764167, filed 2015-09, 50,000 miles

Vehicle speed control: other model years

YearComplaintsShare of year
2000650%
19991255%
19981431%
1997323%
199615%
199513%
199358%
1992113%
1991210%
199028%

Other parts of the 1990 Lexus LS400

Electrical system
6 complaints
Air bags
5 complaints
Latches, locks and linkages
3 complaints
Seat belts
3 complaints
Body and structure
3 complaints
Engine cooling
2 complaints
Fuel system
2 complaints
Steering
2 complaints
Brakes
1 complaints
Exterior lighting
1 complaints
Other or unknown
1 complaints
Suspension
1 complaints

← All problems reported for the 1990 Lexus LS400

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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