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NHTSA campaign 22V874000 · manufacturer recall N222391080

2021–2022 Chevrolet 4500HD and 4 other Chevrolet models: equipment recall

Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.

high 5,861 vehicles affected 88% reported repaired

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet 4500HD/5500HD/6500HD vehicles. The hex flange lock nuts used in the suspension and steering joints, were improperly heat treated and may break. Risk Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash. Fix Dealers will replace the hex flange lock nuts as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed December 27, 2022. Owner notification letters were mailed February 10, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222391080.

Reported to NHTSA Nov 23, 2022 by General Motors, LLC, owners notified Feb 10, 2023.

What that means, in plain English

Source: WhichTrim's reading of the filing above — not NHTSA's wording

Broken lock nuts in suspension and steering joints can cause steering instability, directly risking a crash, but no stop-drive order was issued and the failure mode involves parts that 'may break' rather than a confirmed sudden loss of control.

Written for us by a language model from the manufacturer's filed text, which is quoted in full above. Where the two differ, the filing is the record and this is only our summary of it.

The fix, from the dealer bulletin

Source: NHTSA remedy instructions and dealer notice
Stop-sale Yes: the bulletin says the vehicle may not be sold or delivered until repaired
Remedy Instructions filed: the dealer bulletin exists

The advisory, as filed: “Attention: It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied.”

Read from NHTSA’s copy of the manufacturer’s dealer documents (manufacturer campaign N222391080). The procedure itself is in the bulletin; a franchised dealer has the current copy on the manufacturer’s portal, and that copy governs. Working a lot or a fleet? Recall Watch carries this line on every VIN it checks: remedy status, hours, stop-sale.

Which vehicles are covered

Source: NHTSA campaign 22V874000
Model yearOn WhichTrim
2021 Chevrolet 4500HDevery Chevrolet on this site
2022 Chevrolet 4500HDevery Chevrolet on this site
2021 Chevrolet 4500XDevery Chevrolet on this site
2022 Chevrolet 4500XDevery Chevrolet on this site
2021 Chevrolet 5500HDevery Chevrolet on this site
2022 Chevrolet 5500HDevery Chevrolet on this site
2021 Chevrolet 5500XDevery Chevrolet on this site
2022 Chevrolet 5500XDevery Chevrolet on this site
2022 Chevrolet 6500HDevery Chevrolet on this site

None of the vehicles this campaign names has a page on WhichTrim: the catalogue covers the cars, trucks and SUVs the EPA certifies from 2016 on, and these vehicles fall outside it — older model years, or motorhomes, trailers, buses, motorcycles and chassis cabs the EPA does not rate. The campaign record above is complete as filed, and whether one specific vehicle is included is settled by its VIN. Other campaigns on vehicles without a page here →

How much of it has been fixed

Source: manufacturer quarterly report, 49 CFR 573.7
Reported repaired 88%

of the campaign

The final figure: the six quarters of reporting that 49 cfr 573.7 requires have closed.

This is the manufacturer's own cumulative count of vehicles it has inspected and repaired, divided by the vehicles the campaign covers. It files that count with NHTSA every quarter for six consecutive quarters, starting from the quarter in which owners were told a remedy was ready, and then the obligation ends — so a figure on an older campaign is where the count stopped, not where it stands today.

It rarely reaches 100%, and not because the work was not done. The same report asks manufacturers to count vehicles they could not reach at all — exported, stolen, scrapped, or simply never located — and those stay in the denominator. A low number means a lot of these vehicles are still out there unrepaired; it does not tell you which ones.

The federal paperwork

Source: nhtsa.gov

Check one specific vehicle

A recall applies to a build range, so year, make and model cannot settle it. Type the VIN and the WhichTrim recall report checks this campaign’s build window and engine against it.

Campaign 22V874000 · the manufacturer calls it N222391080

Own one, or run a fleet? Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, this one's expansions included. Or take a free one-line alert by model year.

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A recall covers a build range. Only your VIN settles it.

Check it with the WhichTrim recall report now, or have us check it every night and email you when something new is filed.

Photo: Taiga Miyamoto / Unsplash

Common questions

Source: NHTSA, 49 CFR Part 573

Is N222391080 the same recall as 22V874000?

Yes. N222391080 is the number General Motors, LLC uses for this campaign in its own paperwork and in the letter it sends owners. 22V874000 is the number NHTSA files it under. One recall, two references — dealers and service departments generally quote the manufacturer's.

Does this recall repair cost anything?

No. Federal law requires the manufacturer to remedy a safety defect or a compliance failure at no charge, for vehicles up to 15 years old measured from the date of first sale. A dealer that asks you to pay for a recall repair is in the wrong.

How do I know whether my vehicle is included?

By VIN, not by model year. The manufacturer files a build range with NHTSA and only vehicles inside it are covered, so two identical-looking cars from the same year can differ. NHTSA's own lookup checks a VIN against the manufacturer's list.

What if the repair is not available yet?

It happens, and often. Manufacturers must notify owners when a defect is found even if the parts or the software are not ready, then notify them a second time once the remedy exists. This campaign was filed without a repair available — General Motors, LLC says so in the text above.

What did the manufacturer say was wrong?

The problem, risk and fix quoted on this page are the manufacturer's own words as filed with NHTSA under 49 CFR Part 573. WhichTrim does not paraphrase them.

Who started this recall?

NHTSA's record credits the manufacturer. A recall can begin with the manufacturer's own testing, with a defect investigation, or with a compliance test against a Federal Motor Vehicle Safety Standard.