How many miles will a 2003 Oldsmobile Alero last?
Half of the 128 NHTSA owner complaints on the 2003 Oldsmobile Alero that list mileage came after 79,000 miles, and 1 in 10 after 149,000 miles. NHTSA's complaints file of November 11, 2026 holds 184 complaints on this model year; each mileage is the odometer when an owner reported a safety problem, not how long the vehicle lasted.
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See what the paid report includes →Of the 128 complaints on the 2003 Oldsmobile Alero that list mileage, the middle half came between 43,000 and 110,000 miles; 38 (30%) came after 100,000 miles, 12 (9%) after 150,000 and 2 (2%) after 200,000.
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How many miles will a 2003 Alero last?
The 128 mileages owners gave run from 25 to 237,907 miles. A quarter are at or under 43,000 miles, half at or under 80,000, three quarters at or under 110,000 and nine in ten at or under 150,000; 38 (30%) came after 100,000 miles, 12 (9%) after 150,000 and 2 (2%) after 200,000.
These mileages say when owners reported a problem, not when a 2003 Alero wears out. NHTSA's file holds only vehicles whose owners complained; one that ran without a problem never appears in it, so it gives no lifespan and no cutoff, and how a vehicle was maintained matters more than any one odometer reading.
| Measure | Value |
|---|---|
| Lowest mileage listed | 25 miles |
| 25th percentile | 43,000 miles |
| Median (50th percentile) | 80,000 miles |
| 75th percentile | 110,000 miles |
| 90th percentile | 150,000 miles |
| Highest mileage listed | 237,907 miles |
| Complaints after 100,000 miles | 38 (30%) |
| Complaints after 150,000 miles | 12 (9%) |
| Complaints after 200,000 miles | 2 (2%) |
Every model year together: Half of the 1,052 NHTSA owner complaints on the Oldsmobile Alero that list mileage came after 69,000 miles (NHTSA complaints file of November 11, 2026). How many miles will an Oldsmobile Alero last? →
Common problems with the 2003 Alero
NHTSA's file holds 184 owner complaints on the 2003 Oldsmobile Alero. Owners named the electrical system most often: 103 complaints, and half of the 68 that list a mileage came after 84,000 miles. A complaint can name more than one component.
| Component (NHTSA category) | Complaints | Listing mileage | Median mileage |
|---|---|---|---|
| Electrical System | 103 | 68 | 84,527 |
| Air Bags | 24 | 16 | 85,000 |
| Engine | 17 | 15 | 91,000 |
| Exterior Lighting | 15 | 10 | 80,000 |
| Vehicle Speed Control | 14 | 11 | 57,000 |
Of the 184 complaints, 18 report a crash, 1 reports a fire and 9 report an injury (15 people reported injured). These are owners' reports to NHTSA, not findings.
Is the 2003 Alero a good year?
Complaint counts cannot say whether the 2003 is a good or a bad Alero: they rise with how many were sold and how long they have been on the road. They show how the 2003 compares with the other model years in NHTSA's file.
With 184 complaints, the 2003 ranks 5th of the 6 Oldsmobile Alero model years from 1999 to 2004 with 10 or more complaints, counting from the most. The most: the 2000 (557). The fewest: the 2004 (109).
Recent model years have had less time to collect complaints, so their counts are still growing. No year is ranked by mileage here, because a year's median mileage mostly follows its age.
| Model year | Owner complaints | Listing mileage | Median mileage |
|---|---|---|---|
| 1999 Alero | 462 | 169 | 63,580 |
| 2000 Alero | 557 | 281 | 65,000 |
| 2001 Alero | 364 | 213 | 64,825 |
| 2002 Alero | 279 | 183 | 74,000 |
| 2003 (this page) | 184 | 128 | 80,000 |
| 2004 Alero | 109 | 78 | 90,000 |
2003 Oldsmobile Alero recalls
NHTSA's recall files of November 11, 2026 list 3 recall campaigns that name the 2003 Oldsmobile Alero (2 vehicle campaigns and 1 equipment or tire campaign that names this model year, often for aftermarket parts). A campaign covers a production range, not every vehicle of the model year: check the VIN with NHTSA's free recall lookup.
| Campaign | Report received | Component |
|---|---|---|
| 14V400000 | Jul 3, 2014 | ELECTRICAL SYSTEM:IGNITION |
| 07E021000 | Mar 12, 2007 | FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES |
| 04V528000 | Nov 1, 2004 | VEHICLE SPEED CONTROL:ACCELERATOR PEDAL |
What these figures can and cannot tell you
- Complaints are owners’ reports to NHTSA. NHTSA publishes them without verifying them: a complaint is an allegation, not a defect finding.
- The mileage is what the owner wrote on the complaint; NHTSA does not check it against the odometer.
- The make, model and model year are the ones on the complaint. NHTSA records them as filed, so a few complaints sit under a model year the name was not sold in.
- They are not a lifespan study. The file holds only vehicles whose owners reported a problem, so these figures do not say how long a typical 2003 Alero lasts.
- A complaint count rises with how many vehicles were sold and how long they have been on the road, so it is not a rating of the 2003 Alero.
- Nothing here describes one vehicle: its title brands, odometer readings, accidents and open recalls are in the records for its own VIN.
- 56 of the 184 complaints on the 2003 Oldsmobile Alero give no usable mileage (blank, zero, a filler such as 999999, or over 500,000) and are left out of every mileage figure.
- NHTSA name counted: ALERO. NHTSA files some vehicles under several names (a series name and a trim name, for example); this page counts only this one.
- Recall-file name matched: ALERO.
Primary sources behind this page
Open the underlying public source and verify that its scope matches the question you are asking.
- NHTSA complaints flat file (FLAT_CMPL.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- Complaints file field layout (CMPL.txt)National Highway Traffic Safety Administration
- NHTSA recalls flat file (FLAT_RCL_PRE_2010.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- NHTSA recalls flat file (FLAT_RCL_POST_2010.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- Recalls file field layout (RCL.txt)National Highway Traffic Safety Administration
- NHTSA recall and complaint datasets: scope and documentationNational Highway Traffic Safety Administration
- Recalls Lookup by VINNational Highway Traffic Safety Administration
NHTSA’s complaints file was downloaded on November 11, 2026 (FLAT_CMPL.txt, dated 2026-11-11 10:15, 2,265,416 rows), with its recall files (FLAT_RCL_PRE_2010.txt and FLAT_RCL_POST_2010.txt, dated 2026-11-11 08:02). Each complaint is counted once, by its NHTSA number, with the model year and mileage of its first row; a model year has a page only with 10 or more complaints. The collection script and its rules are in scripts/collect-nhtsa-model-year-longtail.mjs.
2003 Oldsmobile Alero questions
How many miles will a 2003 Oldsmobile Alero last?
Half of the 128 NHTSA owner complaints on the 2003 Oldsmobile Alero that list mileage came after 79,000 miles, and 1 in 10 after 149,000 miles. Of the 128 complaints on the 2003 Oldsmobile Alero that list mileage, the middle half came between 43,000 and 110,000 miles; 38 (30%) came after 100,000 miles, 12 (9%) after 150,000 and 2 (2%) after 200,000. These are mileages at a reported problem, not a lifespan: the file holds no 2003 Alero that never had one.
What are the most common 2003 Oldsmobile Alero problems?
NHTSA's file holds 184 owner complaints on the 2003 Oldsmobile Alero. Owners named the electrical system most often: 103 complaints, and half of the 68 that list a mileage came after 84,000 miles. A complaint can name more than one component. Of the 184 complaints, 18 report a crash, 1 reports a fire and 9 report an injury (15 people reported injured). These are owners' reports to NHTSA, not findings.
Is the 2003 Oldsmobile Alero a good year?
Complaint counts cannot say whether the 2003 is a good or a bad Alero: they rise with how many were sold and how long they have been on the road. They show how the 2003 compares with the other model years in NHTSA's file. With 184 complaints, the 2003 ranks 5th of the 6 Oldsmobile Alero model years from 1999 to 2004 with 10 or more complaints, counting from the most. The most: the 2000 (557). The fewest: the 2004 (109).
How many recalls does the 2003 Oldsmobile Alero have?
NHTSA's recall files of November 11, 2026 list 3 recall campaigns that name the 2003 Oldsmobile Alero (2 vehicle campaigns and 1 equipment or tire campaign that names this model year, often for aftermarket parts). A campaign covers a production range, not every vehicle of the model year: check the VIN with NHTSA's free recall lookup.
How do I check a used 2003 Oldsmobile Alero before buying?
Take the 17-character VIN from the vehicle and compare the odometer with the readings on file for it: title transfers, inspections and auction sales record the mileage on the day. VIN Lookup (free-vin-lookup.com) sells the original ClearVIN PDF for $14.99 (3 reports for $29.99, 5 for $44.99): odometer readings, title brands and auction records on file for the VIN. Check the VIN before buying a used 2003 Oldsmobile Alero.