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Saturn Ion problems by generation and mileage

1 generation across 1 model, built from 3,539 complaints that record mileage at failure. Saturn on this site means the Ion.

Saturn Ion generations

Pick your car. Each generation has its own page: what owners reported breaking, at what mileage, year by year, and its recalls.

How many miles does a Saturn Ion last?

Complaint records can’t measure how long a car lasts; they show when reported failures happened. Across the 2003–2007 Saturn Ion half of the 3,539 complaints that record an odometer reading were filed by 67,000 miles and 90% by 135,000 miles. 236 came in past 150,000 miles and 56 past 200,000 — each one a car that got there, not one that failed there.

At what mileage does the Saturn Ion start having problems? A quarter of those reports came by 44,000 miles, and 6% within the first 12,000 — the window this site treats as manufacturing defects rather than wear. That is the start of the reports, not the onset of problems on any one car.

Its generation page gives these figures year by year: Saturn Ion 2003–2007.

Mileage at failure, generation by generation

Each strip places that generation’s mileage-tagged reports on a linear 0–200,000-mile scale: whisker = middle 80%, box = middle half, line = median. † marks recent generations — their fleets are young, so their reports can only have come at low mileages. Compare generations of similar age.

Ion

• 2003–20073,53967,000

What the strips show across Saturn

Of the 1 Saturn generations here, 1 with failures spread across the mileage range. The shape matters more than the median: a generation whose reports cluster tightly at one mileage is describing a part that fails, while one spread across the whole range is describing ordinary wear, and the two need different decisions from a buyer. The most common shape across this make is failures spread across the mileage range, on 1 of 1.

Comparing generations of the same age

Medians fall as generations get newer, and that is age, not decline: a car built three years ago has not had time to reach a high odometer reading, so its reports cannot come from one. The only honest comparison is inside an age band, and here is this make split into three.

This make has too few generations in any one age band for a within-band comparison to say anything.

What fails across Saturn, and when

Summed across every Saturn generation on this site, the most-reported system is Steering: 1,701 reports, 39% of the 4,339 that name a system, and it appears among the leading systems on 1 of the 1 generations here, reporting at a median of 70,000 miles.

The right-hand column is a median of medians, not an average: a generation with three thousand reports and one with two hundred would otherwise carry the same weight in a mean, and they do not describe the same amount of evidence. Read it as the middle of the range this make reports at, not as a prediction for one car.

Recalls across Saturn

NHTSA has issued 10 recall campaigns against the Saturn generations on this site, spread over 1 of 1. A recall is not a reliability score: it means a defect was found and a free repair is owed, and a make watched closely can collect more campaigns than one nobody examined. What it does mean for a buyer is concrete — the work is free at an authorized dealer, for any owner, and whether a given car is included depends on its VIN rather than on its model year.

• Ion 2003–2007 — 10 campaigns

What this page cannot tell you

These are complaints, not failures. A complaint exists because an owner chose to file one with NHTSA, and nothing here counts the owners who did not. That makes the counts a measure of reporting as much as of breaking, and it is why this site never ranks one car against another: it describes what happens to a given car, and when.

Nor is any of this a rate. A rate needs a denominator — how many of these cars were sold — and no free model-level production figure exists. The obvious substitute, the affected-vehicle count on recall campaigns, was tested here and rejected: it overstates by a median factor of 7.6, because most campaigns span several model years. So a generation with more reports than another may simply be a generation with more cars on the road. The method page sets out every step.

Every page here is generated from the NHTSA Office of Defects Investigation dataset. How this is built · All makes