Total Complaints
3 filings
LEXUS IS · model year
2023 LEXUS IS
3 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2023LEXUSIS carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2023 IS is power train with 1 filings, followed by visibility:sun/moon roof assembly (1) and structure:body (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 3 investigation files overlapping the 2023 IS. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
3
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| POWER TRAIN | 1 |
| VISIBILITY:SUN/MOON ROOF ASSEMBLY | 1 |
| STRUCTURE:BODY | 1 |
Recent Complaints
20260213STRUCTURE:BODY
I am reporting a recurring front bumper cracking and separation issue on my Lexus IS 500. A crack developed at the front bumper seam directly adjacent to the passenger-side headlight assembly. The crack originates at the bumper mounting/retention area near the headlamp and appears to be stress-related rather than impact-related. There is a known Lexus Technical Service Bulletin addressing front bumper sag and improper retention on this model. Multiple other Lexus IS 500 owners have reported similar cracking and separation in the exact same location, including vehicles that have not been modified or involved in collisions. My concern is that: The crack appears at a structural mounting point of the bumper. Continued stress or separation may compromise bumper retention. Progressive separation could create risk of partial bumper detachment at highway speeds. The issue occurs adjacent to the headlight assembly, raising potential concern for lighting alignment or mounting stability if
20240208VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2023 Lexus IS350. The contact stated that while driving at an undisclosed speed, the moon roof suddenly shattered, raining glass into the interior of the vehicle. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 11,000.
Mileage: 11,000
20230817POWER TRAIN
During driving an issue arose where the acceleration had to be performed in order to avoid a potential accident. The gas pedal vas depressed but the transmission would not downshift or accelerate. After about a second or more the transmission finally downshifted and the vehicle accelerated. I was able to steer out of trouble and fought the in order to do it. This is a know issue and programmed by Lexus. Who in their right mind does not allow the car to accelerate when the gas pedal is depressed. this issue ue seems to be with IS500 only. the mechanic did acknowledge a slow shift and this is by design. I am afraid to pull into traffic since the car will not go. It will start to go then slow down or back off and then after it downshifts it picks up speed. The time is so slow that I could get hit if the approaching traffic gets to me despite knowing that the distance is sufficient to safely pull into traffic. the car is unpredictable. In my other cars I have no issues like thi
Compare 2023LEXUSIS to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2023 LEXUS IS have?▼
The 2023 LEXUS IS has 3 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2023 LEXUS IS?▼
The most-complained component for the 2023 LEXUS IS is POWER TRAIN with 1 complaints. Other frequently reported areas include VISIBILITY:SUN/MOON ROOF ASSEMBLY and STRUCTURE:BODY.
Is the 2023 LEXUS IS safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.