What breaks most · 2003 to 2005 model years
Saturn L300 problems by year
Owners have filed 128 safety complaints with NHTSA about the Saturn L300 across model years 2003 to 2005. Three years stand out: 2004 for electrical system complaints, 2003 for electrical system complaints and 2005 for electrical system complaints.
- Years to check closely: 2004, 2003, 2005
- Complaints on file
- 1282003 to 2005, all trims
- Worst year
- 200461 complaints
- Crashes reported
- 95 fires · 8 injuries · 1 deaths
- Typical failure mileage
- 60kMedian where owners gave mileage
- Recall campaigns
- 2Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 42 | 5 | 0 | Electrical system (10) | |
| 61 | 3 | 2 | Electrical system (15) | |
| 25 | 1 | 0 | Electrical system (7) |
What fails on the 2004 Saturn L300
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Electrical systemAlternators, starters and ignition | 25% |
15 | 0 | Shop electrical system parts for the 2004 Saturn L300 |
| Exterior lightingHeadlights, tail lights and bulbs | 20% |
12 | 0 | Shop exterior lighting parts for the 2004 Saturn L300 |
| Engine and coolingRadiators, thermostats and cooling | 13% |
8 | 0 | Shop engine and cooling parts for the 2004 Saturn L300 |
| Powertrain and transmissionTransmission parts | 10% |
6 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Speed control and throttleThrottle and pedal sensors | 7% |
4 | 1 | Shop speed control and throttle parts for the 2004 Saturn L300 |
| Fuel systemFuel pumps and injectors | 7% |
4 | 0 | Shop fuel system parts for the 2004 Saturn L300 |
| Body and structureDoors, latches and body hardware | 5% |
3 | 0 | Shop body and structure parts for the 2004 Saturn L300 |
| SteeringPower steering pumps, racks and hoses | 5% |
3 | 0 | Shop steering parts for the 2004 Saturn L300 |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
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Wiper switch heats up on ignition and also randomly while running - causing smoke and burning smellfrom steering column and wipers to turn on by themselves. First replacement done by certified mechanic with certified GM part cost $365. 3 years later, it's the same issue again!
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Ignition switch will not start the car. It is in the off position. I am having a new switch installed. I do not understand why this car part is not on the recall list. All other 2003 saturns are being recalled.
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January 28th, 2005 - purchased 2005 saturn l-300. 10 minutes after the car left the lot the check engine light came on. The oxygen sensor was bad. The oxygen sensor was replaced by saturn of fond du lac, wi. *jb
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Saturn L300 years have the most problems?
By NHTSA complaint volume, 2004, 2003, 2005 carry the most filings on the Saturn L300. The 2004 alone has 61 complaints, led by electrical system.
What is the most common Saturn L300 problem?
On the 2004 model year, the most-reported component is electrical system with 15 complaints. The table above lists the top components for every year.
At what mileage do Saturn L300 problems start?
The median mileage at failure across all Saturn L300 complaints that include mileage is about 60,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.