Defect
LAMP HOUSING OF CENTER HIGH MOUNTED STOP LAMP COULD BECOME DISTORTED AFTER PROLONGED ILLUMINATION, PARTICULARLY UNDER HIGH TEMPERATURES.
Remedy
REPLACE LAMP HOUSING WITH ONE OF HIGHER TEMPERATURE RESISTANT MATERIAL.
1990 Lexus Ls400 problems
Verdict · NHTSA data
Worth extra scrutiny
The 1990 Lexus Ls400 sits mid-pack among Ls400 years: 36 NHTSA complaints against a model median of roughly 27, with a single recall and no defect investigations.
No single system dominates the record — complaints spread across electrical system (6), airbags (5), and seat belts (3), which usually points to general build quality rather than one defect.
36
NHTSA complaints
1
Recalls
0
Investigations
6
Crash-involved
1
Fires reported
7
Injuries
0
Deaths
—
NCAP overall
How does 1990 compare to other Ls400 years?
What are the most common 1990 Lexus Ls400 problems?
| Component | Complaints | Share | vs prior year |
|---|---|---|---|
| Electrical System | 6 | 17% | new |
| Airbags | 5 | 14% | new |
| Seat Belts | 3 | 8% | new |
| Latches & Locks | 3 | 8% | new |
| Body & Structure | 3 | 8% | new |
| Fuel System | 2 | 6% | new |
| Speed Control | 2 | 6% | new |
| Steering | 2 | 6% | new |
| Visibility & Wipers | 2 | 6% | new |
| Engine | 2 | 6% | new |
| Tires & Wheels | 1 | 3% | new |
| Transmission | 1 | 3% | new |
| Lighting | 1 | 3% | new |
| Other | 1 | 3% | new |
| Brakes | 1 | 3% | new |
| Suspension | 1 | 3% | new |
Does the 1990 Lexus Ls400 have recalls?
1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.
Consumer complaints filed with NHTSA
Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.
“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.…”
“CONSUMER STATED WHILE TRAVELING AT 30 MPH, ANOTHER VEHICLE RAN A LIGHT AND THE CONSUMER HIT THE VEHICLE. CONSUMER'S VEHICLE WAS TOTALED. THE DRIVER SIDE AIRBAG DID NOT DEPLOYED. THE PASSENGERS NECK AND BACK WAS INJURED AS A RESULT. PASSENGERS WERE WEARING SEAT BELTS. *PH *TS *JB”
“THE TWO FRONT SEAT BELTS DO NOT RETRACT PROPERLY AGAINST THE BODY AND HANG LOOSELY. PROBLEM NOT CORRECTED AT THIS TIME. *AK”
“SPEED WAS ABOUT 20-35 MPH. ENGINE RACED AND CAR SURGED FORWARD INTO CAR AH EAD, PUSHING THE CAR AHEAD FORWARD. BRAKING WAS VERY DIFFICULT. THE AIR BAG DID NOT DEPLOY. MY MECHANIC INSPECTED THE CAR AND FOUND THAT THE TRANSMISSION MOUNT BRACKET WAS SHEARED IN TWO WHICH CAUSED THE TRANSMISSION TO…”
“PASSENGER DOOR LOCK MECHANISM ON MY 1990 LEXUS LS400 HAS FAILED TO THE POINT WHERE DOOR WILL NOT OPEN FROM OUTSIDE NOR INSIDE. LEXUS DEALER WANTS $800 TO FIX THE PROBLEM AND THE POSSIBILITY OF DAMAGING DOOR PANEL AND SCRATCHING WINDOW. THIS IS CLEARLY A SAFETY HAZARD THAT LEXUS (TOYOTA) SHOULD PAY…”
1990 Lexus Ls400 — common questions
Is the 1990 Lexus Ls400 reliable?
It is close to typical for the Ls400: 36 NHTSA complaints, 1 recall, and no investigations on file.
What are the most common 1990 Ls400 problems?
According to NHTSA complaint data, the leading problem areas are electrical system (6 complaints), airbags (5 complaints), seat belts (3 complaints).
Does the 1990 Lexus Ls400 have recalls?
Yes — NHTSA lists 1 recall campaign affecting the 1990 Lexus Ls400. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
Which Lexus Ls400 years should you avoid?
Based on complaint rates and open investigations, the Ls400 years to avoid are 1993, 1994, 1998, 1995. The cleanest record among Ls400 years belongs to 2001.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.