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What 6 owners told NHTSA about the 2018 Lexus Is300

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (6)Crash / fire / injury (2)Fuel system (3)Body & structure (2)Engine (1)Speed control (1)Transmission & drivetrain (1)

2 of 6 complaints match · Body & structure · clear filters

Apr 7, 2022Body & structure

I was driving down the highway at 70 mph and it was windy at the same time. Out of no where my sunroof window exploded shattering the glass. Luckily I usually keep the cover close. It sounded a gun shot that went off. There was nothing around me that would come down and break the window of the sunroof. It just happened out of no where.

NHTSA ODI 11460066

Nov 29, 2018Body & structure1 injury

DRIVING ON 285 EAST IN ATLANTA GA 11/29/2018 WHEN MY LEXUS IS 300 SUNROOF EXPLODED. ALL WINDOWS WERE CLOSED TEMPERATURE WAS 37 DEGREES. IT SOUND LIKE A GUN WENT OFF. GLASS FELL FROM THE ROOF AND PIECE OF THE GLASS WENT IN MY LEFT EYE. I MADE APPOINTMENT FOR THE EYE DOCTOR FOR 11/30/2018

NHTSA ODI 11154859

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 22, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Lexus Is300 verdict →