Most common 2004 Lexus GS300 problems
Share of the 6 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Lexus GS300 complaints by model year
Best GS300 years: 2019, 2004. Years to avoid: 2006, 1998, 2000. Compare all years →
2004 Lexus GS300 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.0L 6-cyl | 5-speed automatic | RWD | 16 / 23 / 19 |
| 4.3L 8-cyl | 5-speed automatic | RWD | 16 / 22 / 18 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2004 Lexus GS300 a good car?
Based on 6 owner complaints filed with NHTSA, the 2004 GS300 rates better than average: 59% fewer complaints than a typical year of the GS300 at the same age. It is one of the best GS300 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2004 Lexus GS300?
The speed control & acceleration — 2 complaints, 33% of all complaints for this model year. Next are the body & structure (1) and seat belts (1).
How many recalls does the 2004 Lexus GS300 have?
NHTSA lists no recalls for the 2004 Lexus GS300. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Lexus GS300?
The best years by complaints, compared at the same age, are 2019 and 2004. Years to avoid or approach with caution: 2006, 1998 and 2000. See the full Lexus GS300 years comparison.
At what mileage do 2004 Lexus GS300 problems happen?
The median mileage reported in complaints is about 118,000 miles; 25% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.