2018 Lexus IS Review — Owner Opinions & Common Issues

2023 Lexus IS — STRUCTURE

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-rela...

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 the condition worsens. This does not appear to be isolated cosmetic damage but rather a recurring stress point at the bumper mounting seam. If the bumper retention system is insufficient or prone to stress cracking, this could pose a potential roadway hazard if separation increases while driving. Given that Lexus has issued a Technical Service Bulletin regarding bumper sag/retention on this model, I am requesting that NHTSA review whether the front bumper attachment design presents a broader safety concern.

2022 Lexus IS — SUSPENSION

The contact owns a 2022 Lexus IS350. The contact stated that while taking the vehicle for the 6-month inspection, the contact was informed that the tires were completely worn and needed to be replaced. The dealer informed the contact that the tires needed to be replaced. The contact contacted the ti...

The contact owns a 2022 Lexus IS350. The contact stated that while taking the vehicle for the 6-month inspection, the contact was informed that the tires were completely worn and needed to be replaced. The dealer informed the contact that the tires needed to be replaced. The contact contacted the tire manufacturer Bridgestone Tires and was informed that the suspension bushings were too soft and needed to be replaced. The tires were not replaced. The manufacturer was informed of the failure and a case was opened for the failure. The failure mileage was 8,616.

2022 Lexus IS — POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

Sudden engine stalling in the middle of a highway with extremely heavy traffic and stopped in the center lane. Needs to wait inside the car with a passenger in a very scary, tense situation and exposed to serious accident, until a towing arrive for about 1.5 hrs later. The car was towed to the deal...

Sudden engine stalling in the middle of a highway with extremely heavy traffic and stopped in the center lane. Needs to wait inside the car with a passenger in a very scary, tense situation and exposed to serious accident, until a towing arrive for about 1.5 hrs later. The car was towed to the dealer. Since I was in the middle of a highway, I wasn’t able to exit the car to verify the car. But, the engine stalling was compatible with fuel delivery starvation. The fuel tank was full. The starter spin and electric system was functional, so electric voltage was not an issue. No check engine light on, no alerts messages, nothing. Just suddenly engine power loose, stalling and the engine stop. Check engine light on after a lot of cranking. Never fire back.

2023 Lexus IS — VISIBILITY

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...

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.

2024 Lexus IS — VISIBILITY

The contact owns a 2024 Lexus IS500. The contact stated while driving approximately 65 MPH, the front driver’s side glass window suddenly started to honeycomb before exploding outward. The contact stated that during the failure, his wife was seated in the front passenger’s side seat. No injuries...

The contact owns a 2024 Lexus IS500. The contact stated while driving approximately 65 MPH, the front driver’s side glass window suddenly started to honeycomb before exploding outward. The contact stated that during the failure, his wife was seated in the front passenger’s side seat. No injuries were reported. Additionally, no objects had impacted the driver’s side window to cause the failure. The local dealer and manufacturer were notified of the failure. The failure mileage was 461.