Problems · NHTSA complaints
2018 Lexus IS300 problems
Owners filed 6 complaints about the 2018 Lexus IS300 with NHTSA between Nov 2018 and Nov 2022. The most-cited component is structure (2).
Complaints
6
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Structure2
- Fuel/propulsion system2
- Fuel system, gasoline1
- Power train1
- Vehicle speed control1
- Engine1
- Other / unknown1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 12, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
2
0
2
0
2
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2018 | 2 |
| 2019 | 0 |
| 2020 | 2 |
| 2021 | 0 |
| 2022 | 2 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Structure
2 reports
“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.”
Fuel/propulsion system
2 reports
“TL* THE CONTACT OWNS A 2018 LEXUS IS 300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V012000 (FUEL SYSTEM, GASOLINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT REACHED OUT TO LEXUS OF NORTH MIAMI LOCATED AT (14100 BISCAYNE BLVD, NORTH MIAMI, FL 33181) AND IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.”
Fuel system, gasoline
1 report
“The contact owns a 2018 Lexus IS300. The contact stated that while driving at an undisclosed speed, the vehicle felt sluggish. The contact then heard an abnormal cranking noise underneath the hood of the vehicle. The vehicle was taken to the dealer where the failure could not be duplicated. No warning lights were illuminated. The contact stated that she recorded the noise then took the vehicle back to the dealer; however, the dealer informed her that the fuel injectors might need to be replaced. The vehicle was repaired; however, while the accelerator pedal was depressed, the vehicle failed to accelerate as needed. The contact stated that additional pressure on the accelerator pedal was needed for the vehicle to perform as designed. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was notified of a possible buy back. The failure mileage was approximately 15,000”
Power train
1 report1 crash
“2018 LEXUS IS 300. CONSUMER WRITES IN REGARDS TO VEHICLE STALLING WHILE TRYING TO MAKE A U-TURN. *LD *JS”
Vehicle speed control
1 report
“WHEN I ACCELERATE FROM A STOP OR WHILE MOVING ON A ROADWAY, THE ENGINE SEEMS TO STALL. I'M NOT TALKING ABOUT THE NORMAL TURBO SPOOLING STALL. IT LASTS FOR ABOUT 3 TO 5 FULL SECONDS. WHEN YOU NEED POWER TO PREVENT AN ACCIDENT, YOU CAN'T AFFORD THAT TIME LAG, AS IT COULD CAUSE YOUR DEATH. THE DEALER TOLD ME THAT LEXUS SAYS IT'S NORMAL, THEY ALL DO IT. I DON'T FEEL ANY MANUFACTURER WOULD DELIBERATELY BUILD AND SELL A VEHICLE THAT WOULD PUT THE OCCUPANTS IN DANGER OF POSSIBLE DEATH. THE DEALER PICKED UP THE CAR AND AFTER FIVE DAYS CALLED ME TO SAY NOTHING IS WRONG AND THEY CAN'T FIX THE PROBLEM BECAUSE LEXUS COMPANY SAYS IT'S NORMAL. AT THIS POINT I'M REFUSING TO DRIVE THE CAR, IT'S EXTREMELY DANGEROUS. I HAVE ONLY DRIVEN IT ABOUT 188 MILES SINCE BUYING IT ALMOST 1 MONTH AGO. I CALLED THE DEALER ABOUT MY CONCERN AFTER HAVING THE CAR ONLY 20 DAYS.”
Engine
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.