2004 Lexus IS 300 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
19 owner complaints analyzed
0 distinct recall campaigns
56,700 mi median reported failure mileage
Scope: 2004 model year. Data snapshot: . 14 complaints include usable failure mileage.
Most common problems
Structure is the most frequently named component, appearing in 3 of 19 complaints (15.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 4 | 21.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Structure | 3 |
| Unknown Or Other | 3 |
| Vehicle Speed Control | 3 |
| Air Bags | 2 |
| Engine | 2 |
| Tires | 2 |
| Air Bags:Frontal | 1 |
| Electrical System | 1 |
Structure: 3; Unknown Or Other: 3; Vehicle Speed Control: 3; Air Bags: 2; Engine: 2; Tires: 2; Air Bags:Frontal: 1; Electrical System: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 3 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 3 |
| 150,000 and above | 1 |
Under 25,000: 1; 25,000 to 49,999: 4; 50,000 to 74,999: 3; 75,000 to 99,999: 2; 100,000 to 149,999: 3; 150,000 and above: 1
25,000 to 49,999 miles has the most reports with usable mileage (4). 5 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2005 | 2 |
| 2006 | 1 |
| 2008 | 4 |
| 2010 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
2005: 2; 2006: 1; 2008: 4; 2010: 2; 2013: 1; 2014: 2; 2015: 2; 2016: 2; 2017: 1; 2018: 2
Pattern summary
Structure leads the component reports. Braking behavior appears in 4 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10172279 · 2006-10-31 (October 31, 2006)
DT*: THE CONTACT STATED THE BRAKE AND ACCELERATOR PEDALS WERE MADE OF CHROME PLATES THAT CAUSED THE DRIVER TO SLIP OFF THE PEDALS DURING NORMAL ROAD CONDITIONS. THE NATURE OF THE FAILURE WAS PERMANENT. THE MANUFACTURER REFUSED TO REPAIR OR REPLACE THE CHROME PLATED PEDALS. UPDATED 11/30/2006 - THE ONLY SHOES THE CONSUMER COULD WEAR TO ALLEVIATE THE SLIPPAGE WAS ATHLETIC SHOES, LIKE SNEAKERS, WHICH HAVE A RUBBER SOLE. *NM
Owner-reported narrative. Look up ODI 10172279 at NHTSA ↗
Owner report 10244204 · 2008-10-02 (October 2, 2008)
CAR FAILED TO STOP AT A RED LIGHT UNDER NORMAL BRAKING BECAUSE ENGINE FAILED TO DECELERATE WHEN PRESSURE WAS REMOVED FROM THE PEDAL. MAXIMUM FORCE WAS APPLIED TO THE BRAKE PEDAL. THE BRAKE ANTI LOCK FEATURE WAS ACTIVATED AND A COLLISION WITH THE STOPPED CAR AHEAD WAS BARELY AVERTED. WHEN STOPPED, THE ENGINE REVERTED TO NORMAL IDLE. THE PROBLEM DID NOT RECUR. EXAMINATION BY A MECHANIC AT THE DEALERS SHOP FAILED TO IDENTIFY A COMPUTER FAULT OR OTHER CAUSE. THE CAR WAS RETURNED WITHOUT REPAIR. I AM NOT SATISFIED THAT A STUCK THROTTLE IS…
Owner-reported narrative. 58,400 miles reported. Look up ODI 10244204 at NHTSA ↗