Infiniti QX4 VIN Check

Which build runs owners report most

Characters 1–11 of a VIN identify the production run — plant, model year, body and engine — which splits the Infiniti QX4 into 104 distinct batches rather than one nameplate. On the Infiniti QX4 that distinction is not academic: its 104 runs average 2.1 complaints each, but the worst one — JNRAR05Y1VW, a 1997 build — carries 5. That is 2.4× the model average, and the difference is invisible if you only look up the model name. The five runs at the top of this table hold 11% of every QX4 complaint on file.

Match the first eleven characters of your own VIN against these 12 runs. A hit means the fault reports below describe your exact build; no hit means yours sits among the 92 Infiniti QX4 runs that drew fewer reports than any listed here.

Which model years to check twice

Ranked by complaints per production run, not by raw count — a raw count only tells you which year sold well. On the Infiniti QX4 the spread between build years is 1.8×: a 1997 car draws 3.2 complaints per run, a 2001 one 1.8. Same badge, same factory in most cases — different year.

Heaviest year here is 1997 at 3.2 complaints per run; lightest is 2001 at 1.8. Every year listed is old enough to have finished collecting reports — the newest Infiniti QX4 here is a 2003.

What to inspect on this car

One system accounts for 32% of everything Infiniti QX4 owners report: Suspension. Put it at the top of the inspection list — suspension is where 77 of the 223 complaints on file landed, and a mechanic given a named part finds more than one told to «look it over».

Open recalls to verify

NHTSA has 9 recall campaigns on the Infiniti QX4, covering build years 1997 to 2003, and every one of them is free to fix at any franchised dealer, for the life of the car, whoever owns it now. The work only happens if someone books it, though — and a used car that changed hands may never have been brought in. Check each campaign below against your VIN.

The digits in a campaign number carry the year it was opened. Take 11V244000 above: opened in 2011 on cars built from 1997 — 14 years of that fault on the road before anyone acted.

How serious were they

A complaint count on its own is a weak signal — a rattling trim panel and a stalling engine both count as one. Of the 223 reports on the Infiniti QX4, 12.6% involved a crash against 5.8% across all vehicles — above the norm, and that ratio matters more than the raw total.

Crash-related reports run 117% above the all-vehicle rate. That does not make the car unsafe on its own — but it does mean the faults owners report here tend to be the kind that end in an accident, not a squeak.

How this check works

The file behind this page holds 1,109,349 complaints filed with NHTSA between 1981 and 2026, across 297,579 production runs. The Infiniti QX4 share of that is 223 complaints over 104 runs — 0.02% of everything on record. Each one carries the reporter's VIN prefix, the systems involved and whether the incident produced a crash, a fire or an injury.

Grouping those 104 runs by prefix is the whole point. Counted at model level the Infiniti QX4 averages 2.1 complaints per run, which hides the fact that one run carries 5 of them — a 2.4× difference the model name alone will never show you. We publish the eleven characters in full — they identify a batch, not a car, since the six-digit serial number naming the individual vehicle is not part of them.

Everything above is built from those 223 safety records and nothing else, so title brands, odometer readings, auction history and insurance write-offs are not in it — they live in DMV and insurer databases rather than NHTSA's, and no free tool has them, this one included.