AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2018 Lexus Is300
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 2018 Lexus IS300 is rated above-average for reliability, with minimal recalls and a low number of complaints related to major components.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| turbocharger | 70,000–100,000 miles | $1,500–$2,500 | occasional |
| brakes | 40,000–70,000 miles | $300–$600 | common |
| battery | 30,000–50,000 miles | $100–$200 | common |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil change every 5,000 miles
- Brake inspection every 20,000 miles
- Coolant flush every 30,000 miles
- Tire rotation every 5,000 miles
- Transmission fluid change every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Check engine light illumination
- Unusual turbo whine
- Brake pedal softness
- Unstable idling or stalling
Generated by gpt-4o on 8/19/2026. Cost ranges are conservative estimates that account for typical regional variation.