"How reliable is the 2003 Lexus Ls430?"

"Based on 25 NHTSA complaints, the 2003 Lexus Ls430 has a median complaint mileage of 45000 miles. The most common issue is STRUCTURE."

"What are common problems with the 2003 Lexus Ls430?"

"The most frequently reported component in NHTSA complaints for the 2003 Lexus Ls430 is STRUCTURE, accounting for a significant portion of the 25 total complaints filed."

2003 Lexus Ls430: Reliability Data

Source: NHTSA — 25 complaints

Total Complaints

45,000mi

Median Mileage

STRUCTURE

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

32,500 25th Percentile

45,000 Median Mileage

84,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE

AIR BAGS

VEHICLE SPEED CONTROL

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

SEAT BELTS

TIRES

EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

WHEELS:HUB

VEHICLE SPEED CONTROL:CRUISE CONTROL

POWER TRAIN:AUTOMATIC TRANSMISSION

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"IT IS ONLY 10 WEEKS SINCE THEY BOUGHT VEHICLE AND TWO TIRES HAD BLOWN UP WHILE DRIVING. DUNLOP SPORT 500 SIZE P225/55R17, DOT#95HMS. DEALER NOTIFIED, NOTHING THEY COULD DO. *AK"

"CONSUMER STATES 4 1/2 YEAR OLD CHILD UNLOCKED THE SEAT BELT WHILE GETTING OUT. THE SEAT BELT HAD TIGHTEN AROUND THE CHILD'S NECK, AND THE CONSUMER HAD TO CUT THE SEAT BELT TO GET THE CHILD OUT AS IT CUT OFF HIS BREATHING. *AK THERE WAS NO RELEASE BUTTON WHICH COULD ALLOW HIM TO ESCAPE ONCE THE ..."

"THE GAS TANK ON THE 2003 LEXUS LS430 CAN BE EASILY DAMAGED BY CARELESS PLACEMENT OF THE JACK AT THE REAR MOUNTING POINT. MY CAR WAS RECENTLY DAMAGED THIS WAY AT DORSCHEL LEXUS (ROCHESTER, NEW YORK, AND I AM CONCERNED THAT THERE ARE ANY NUMBER OF SUCH CARS ON THE ROAD. PARTLY CRUSHED GAS TANKS MAY NO..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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