Common problems

Lexus IS Common Problems

We grouped the top NHTSA owner-complaint categories across 9 Lexus IS model years, then counted how often each issue recurs. The result shows patterns worth inspecting without pretending every vehicle will have them.

Data updated April 2026

Owner complaints
44

9 model years

Top recurring issue
Structure

5 affected years

Crash reports
3

Owner-reported severity signal

Fire reports
1

7 injuries · 0 deaths

Pattern overview

Most reported Lexus IS problem categories

#1

Structure

10complaints represented

Appears among the leading issues for 5 model years; highest in 2023.

#2

Power Train

7complaints represented

Appears among the leading issues for 3 model years; highest in 2023.

#3

Fuel Propulsion System

5complaints represented

Appears among the leading issues for 3 model years; highest in 2022.

#4

Suspension

5complaints represented

Appears among the leading issues for 3 model years; highest in 2022.

#5

Unknown Or Other

4complaints represented

Appears among the leading issues for 3 model years; highest in 2019.

#6

Visibility

6complaints represented

Appears among the leading issues for 2 model years; highest in 2024.

#7

Tires

2complaints represented

Appears among the leading issues for 1 model year; highest in 2019.

#8

Air Bags

1complaints represented

Appears among the leading issues for 1 model year; highest in 2020.

#9

Electrical System

1complaints represented

Appears among the leading issues for 1 model year; highest in 2019.

#10

Fuel System, Gasoline

1complaints represented

Appears among the leading issues for 1 model year; highest in 2018.

What owners reported

Issue summaries by Lexus IS model year

2019 Lexus IS2 reports

UNKNOWN OR OTHER

Owners of the 2019 Lexus IS report issues related to unresolved recalls and unexpected sunroof shattering. One complaint indicates a recall that has not been addressed since January, though specific details about the recall are not provided. Another owner describes the sudden shattering of the sunroof while driving, resulting in glass falling into the cabin and causing minor injury to a passenger. This incident suggests a potential safety risk, particularly if glass falls at highway speeds. These reports do not specify mileage, but the sudden nature of the sunroof issue could be a concern for potential buyers considering this model.

Severity signals: 0 crash, 0 fire, 1 injury reports

2019 Lexus IS2 reports

TIRES

Owners of the 2019 Lexus IS report issues with tires, specifically Bridgestone Turanza EL400. Complaints frequently mention tire detachment or blowouts, with one incident involving a tire detaching from the rim at low speed and another at highway speed, leading to a crash and fire. Symptoms include the low tire pressure warning light and abnormal sounds prior to tire failure. The issues are noted at mileages of approximately 2,000 and 19,300 miles. Safety implications are significant, with reports of a crash, vehicle damage, and injuries. These patterns suggest potential concerns for used car buyers regarding tire reliability and safety.

Severity signals: 1 crash, 1 fire, 2 injury reports

2018 Lexus IS2 reports

STRUCTURE

Owners of the 2018 Lexus IS report incidents involving the sunroof unexpectedly exploding while driving. Complaints frequently mention a loud noise resembling a gunshot prior to the sunroof shattering, often with no apparent external cause. In one case, the incident resulted in an injury when glass entered the driver's eye. These events typically occur at highway speeds, and one report notes a temperature of 37 degrees Fahrenheit at the time of the incident. Potential buyers should be aware of the risk of injury due to shattering glass from the sunroof.

Severity signals: 0 crash, 0 fire, 1 injury reports

Pre-purchase inspection

What to check on a used Lexus IS

When problems are reported to begin

  • Moon roof shattering — 10,000–12,000 miles on the 2023 model-year record
  • Suspension wear — 8,000–9,000 miles on the 2022 model-year record
  • Tire alignment and wear issues — 5,000–20,000 miles on the 2020 model-year record
  • Tire failures — 2,000–19,300 miles on the 2019 model-year record
  • Fuel system issues — 15,000 miles on the 2018 model-year record

Buyer red flags

  • Inspect for unusual odors inside the vehicle
  • Test for symptoms of VOC exposure such as headaches or dizziness
  • Verify with a professional environmental service for VOC levels
  • Check for any manufacturer recalls related to interior materials or air quality
  • Inspect all windows for stress marks or cracks
  • Check for any recalls related to window integrity
  • Test all windows for proper operation and listen for unusual noises
  • Test transmission for slow downshifting response

How to interpret the counts

Complaint totals are not failure rates

A popular or older model can accumulate more complaints simply because more vehicles exist and have spent longer on the road. The categories above aggregate the counts embedded in each model year's leading issues. Use recurrence across years and severity signals to decide what to inspect; use the VIN and a mechanical inspection to judge one car.

Source trail

Where this Lexus IS data comes from

VinExposed combines model-level research with the vehicle-specific history you get from a VIN. Reliability scores and complaint patterns come from Auto Reliability Index's Lexus IS research, which analyzes NHTSA records and independent repair data.

Recall counts describe a model year, not the repair status of one car. Confirm the exact VIN with the official NHTSA recall lookup and a vehicle-history report before buying.

Buyer questions

Lexus IS research FAQ

What is the most common Lexus IS problem?

Structure is the broadest recurring complaint category in the available model-year records, appearing among the top issues for 5 years with 10 complaints represented.

Which Lexus IS year has the most reported problems?

The 2023 has the largest structure count among the years where that category appears. Compare the full year record because a different year may lead on another problem category.

Do NHTSA complaints prove a Lexus IS has a defect?

No. Owner complaints are unverified reports and can be duplicated or influenced by sales volume and vehicle age. They are useful patterns to investigate alongside recalls, service records, inspection results and the exact VIN.

Check the actual car

Model research narrows the list. The VIN confirms the car.

Check title brands, accidents, odometer history, auction records and recall status for the specific Lexus IS you are considering.