Skip to content
EnginePart report

2003 Saturn L300 Engine Problems

Complaints
5about this part
Share
12%of 42 total for the year
Median mileage
93,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2003 Saturn L300, 12% of the 42 complaints for this model year. Where a mileage was given, the median is 93,000 miles. 1 a fire, according to the filers.

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.

“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.”

NHTSA complaint #10627094, filed 2014-08, 140,000 miles

“Engine stalls after 10 minutes of driving. Won't start again for 2 or 3 hours only to run for 10 minutes and stall again. Sometimes engine will stall while idling. Sometimes the engine light with the wrench in it comes on and the vehicle starts to shift roughly. If I turn off the vehicle and start it again, this light goes off and the vehicle shifts normally.”

NHTSA complaint #10466854, filed 2012-07, 84,500 miles

“The contact owns a 2003 Saturn L300. While driving 35 MPH, the vehicle stalled without warning. The vehicle was towed to the dealer, but they could not diagnose the cause of failure. The vehicle was not repaired and the manufacturer was not notified. The VIN was unavailable. The failure mileage was 93,000.”

NHTSA complaint #10592355, filed 2014-05, 93,000 miles

“The contact owns a 2003 Saturn L300. The contact stated that the vehicle overheated and there was a leak which allowed water to drip into the cabin. The contact also stated that the key failed to turn while in the ignition and was difficult to remove. The contact then mentioned that smoke emitted from the ignition and engine compartment and the instrument panel erroneously dimmed. The vehicle was taken to the dealer where it was repaired. The contact was unsure of what exact repairs were done. The manufacturer was notified of the failure. The approximately failure mileage was 86,112.”

NHTSA complaint #10573351, filed 2014-03, 86,112 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
200514%
200435%
2003512%

Other parts of the 2003 Saturn L300

Electrical system
10 complaints
Exterior lighting
10 complaints
Engine cooling
4 complaints
Fuel system
4 complaints
Vehicle speed control
4 complaints
Air bags
3 complaints
Tires
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Brakes
2 complaints
Interior lighting
2 complaints
Steering
2 complaints
Suspension
2 complaints

← All problems reported for the 2003 Saturn L300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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