2003 Lexus Is 300: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"WHILE DRIVING AT 60 MPH ON THE HIGHWAY, THE VEHICLE STRUCK A BOAT THAT BROKE FREE FROM A TOWING VEHICLE AND ENDED UP IN THE MIDDLE OF THE LANE. THE SEAT BELTS WERE BEING USED AT THE TIME OF ACCIDENT, BUT NONE OF THE SIX AIR BAGS DEPLOYED. THE POLICE DID ARRIVE ON THE SCENE AND NO ONE WAS INJURE..."
"HIGH WIND NOISE AND FLAPPING NOISE FROM THE DRIVER DOOR; IT'S VERY ANNOYING AND UNCONVERTIBLE DRIVING ON THE HIGHWAY BECAUSE OF THE NOISES PRODUCED BY THIS PROBLEM. LEXUS CLAIMS THEIR CARS AS LUXURY CARS, BUT ALSO CLAIMS THAT A WIND NOISE AND A FLAPPING NOISE ARE NORMAL FOR $34K LUXURY CARS. I TOOK ..."
"HIGH WIND NOISE AND FLAPPING NOISE FROM THE DRIVER DOOR; IT'S VERY ANNOYING AND UNCONVERTIBLE DRIVING ON THE HIGHWAY BECAUSE OF THE NOISES PRODUCED BY THIS PROBLEM. LEXUS CLAIMS THEIR CARS AS LUXURY CARS, BUT ALSO CLAIMS THAT A WIND NOISE AND A FLAPPING NOISE ARE NORMAL FOR $34K LUXURY CARS. I TOOK ..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Lexus Is 300 — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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