2003 Lexus GS300 Engine Problems
- Complaints
- 1about this part
- Share
- 8%of 12 total for the year
- Median mileage
- 214,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2003 Lexus GS300, 8% of the 12 complaints for this model year. Where a mileage was given, the median is 214,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2003 Lexus GS300. When the vehicle was started, the engine made an unusual revving noise. In addition, three unknown warning indicators illuminated and did not turn off. Also, when applying pressure to the brake pedal, the pedal stiffened, which made it difficult to make a complete stop. The vehicle was not diagnosed or repaired. The dealer and manufacturer were not notified of the failures. The failure mileage was 214,000.”
NHTSA complaint #11230207, filed 2019-07, 214,000 milesRelated service bulletins
- 10179601Aug 5, 2020TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a…
Engine: other model years
Other parts of the 2003 Lexus GS300
4 complaintsTires
3 complaintsBrakes
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsElectrical system
1 complaintsLatches, locks and linkages
1 complaintsBody and structure
1 complaints
← All problems reported for the 2003 Lexus GS300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology