Buick Regal TourX 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 Buick Regal TourX into 14 distinct batches rather than one nameplate. On the Buick Regal TourX that distinction is not academic: its 14 runs average 1.2 complaints each, but the worst one — W04GU8SX7J1, a 2018 build — carries 3. That is 2.5× 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 47% of every Regal TourX 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 2 Buick Regal TourX 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 Buick Regal TourX the spread between build years is 1.3×: a 2018 car draws 1.3 complaints per run, a 2020 one 1. Same badge, same factory in most cases — different year.

Heaviest year here is 2018 at 1.3 complaints per run; lightest is 2020 at 1. Every year listed is old enough to have finished collecting reports — the newest Buick Regal TourX here is a 2020.

What to inspect on this car

One system accounts for 19% of everything Buick Regal TourX owners report: Unknown Or Other. Put it at the top of the inspection list — unknown or other is where 4 of the 17 complaints on file landed, and a mechanic given a named part finds more than one told to «look it over».

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. NHTSA records flag whether an incident involved a crash, a fire or an injury, and that is what separates annoyance from danger.

Crash-related reports run 100% below the all-vehicle rate — complaints here skew towards nuisance faults rather than dangerous ones.

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 Buick Regal TourX share of that is 17 complaints over 14 runs — 0% 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 14 runs by prefix is the whole point. Counted at model level the Buick Regal TourX averages 1.2 complaints per run, which hides the fact that one run carries 3 of them — a 2.5× 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 17 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.