How many miles will a 2003 INFINITI M45 last?
Half of the 111 NHTSA owner complaints on the 2003 INFINITI M45 that list mileage came after 95,000 miles, and 1 in 10 after 155,000 miles. NHTSA's complaints file of November 11, 2026 holds 129 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 111 complaints on the 2003 INFINITI M45 that list mileage, the middle half came between 71,000 and 128,000 miles; 52 (47%) came after 100,000 miles, 12 (11%) after 150,000 and 1 (1%) after 200,000.
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How many miles will a 2003 M45 last?
The 111 mileages owners gave run from 100 to 264,874 miles. A quarter are at or under 71,000 miles, half at or under 95,900, three quarters at or under 128,000 and nine in ten at or under 155,025; 52 (47%) came after 100,000 miles, 12 (11%) after 150,000 and 1 (1%) after 200,000.
These mileages say when owners reported a problem, not when a 2003 M45 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 | 100 miles |
| 25th percentile | 71,000 miles |
| Median (50th percentile) | 95,900 miles |
| 75th percentile | 128,000 miles |
| 90th percentile | 155,025 miles |
| Highest mileage listed | 264,874 miles |
| Complaints after 100,000 miles | 52 (47%) |
| Complaints after 150,000 miles | 12 (11%) |
| Complaints after 200,000 miles | 1 (1%) |
Common problems with the 2003 M45
NHTSA's file holds 129 owner complaints on the 2003 INFINITI M45. Owners named the fuel system most often: 65 complaints, and half of the 52 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 |
|---|---|---|---|
| Fuel System, Gasoline | 65 | 52 | 85,000 |
| Engine | 23 | 21 | 138,000 |
| Electrical System | 22 | 17 | 95,900 |
| Engine And Engine Cooling | 18 | 16 | 85,000 |
| Fuel System, Other | 11 | 10 | 71,000 |
None of the 129 complaints reports a crash, a fire or an injury.
Is the 2003 M45 a good year?
Complaint counts cannot say whether the 2003 is a good or a bad M45: 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 129 complaints, the 2003 drew the most of the 4 INFINITI M45 model years from 2003 to 2007 with 10 or more complaints. The fewest: the 2007 (27).
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.
2003 INFINITI M45 recalls
NHTSA's recall files of November 11, 2026 list 2 recall campaigns that name the 2003 INFINITI M45. A campaign covers a production range, not every vehicle of the model year: check the VIN with NHTSA's free recall lookup.
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 M45 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 M45.
- Nothing here describes one vehicle: its title brands, odometer readings, accidents and open recalls are in the records for its own VIN.
- 18 of the 129 complaints on the 2003 INFINITI M45 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: M45. 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: M45.
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 INFINITI M45 questions
How many miles will a 2003 INFINITI M45 last?
Half of the 111 NHTSA owner complaints on the 2003 INFINITI M45 that list mileage came after 95,000 miles, and 1 in 10 after 155,000 miles. Of the 111 complaints on the 2003 INFINITI M45 that list mileage, the middle half came between 71,000 and 128,000 miles; 52 (47%) came after 100,000 miles, 12 (11%) after 150,000 and 1 (1%) after 200,000. These are mileages at a reported problem, not a lifespan: the file holds no 2003 M45 that never had one.
What are the most common 2003 INFINITI M45 problems?
NHTSA's file holds 129 owner complaints on the 2003 INFINITI M45. Owners named the fuel system most often: 65 complaints, and half of the 52 that list a mileage came after 84,000 miles. A complaint can name more than one component. None of the 129 complaints reports a crash, a fire or an injury.
Is the 2003 INFINITI M45 a good year?
Complaint counts cannot say whether the 2003 is a good or a bad M45: 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 129 complaints, the 2003 drew the most of the 4 INFINITI M45 model years from 2003 to 2007 with 10 or more complaints. The fewest: the 2007 (27).
How many recalls does the 2003 INFINITI M45 have?
NHTSA's recall files of November 11, 2026 list 2 recall campaigns that name the 2003 INFINITI M45. 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 INFINITI M45 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 INFINITI M45.