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NHTSA campaign 23V652000 · manufacturer recall SC284

2016–2018 Kia Cadenza and 2 other Kia models: service brakes, hydraulic recall

An engine compartment fire while parked or driving can increase the risk of injury.

critical Park outside 1,730,192 vehicles affected 32% reported repaired

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving. Risk An engine compartment fire while parked or driving can increase the risk of injury. Fix Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC284.

Reported to NHTSA Sep 25, 2023 by Kia America, Inc, owners notified Mar 29, 2024.

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
Owners told Park outside until repaired

Labour, as the warranty table lists it

  • 0.3 h · op 241035RD

The operation code and time the manufacturer pays the dealer; a customer-pay estimate elsewhere is a different number.

Torque

  • Tightening torque for retaining nut (B): 7.2 – 8.7 lb.ft (9.8 – 11.8 N.m)

The advisory, as filed: “Under applicable law, you may not sell or otherwise deliver any affected vehicle until it has been repaired pursuant to the procedures set forth in this bulletin.”

Read from NHTSA’s copy of the manufacturer’s dealer documents (manufacturer campaign SC284). 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 23V652000
Model yearClassSafety SignalRecalls on file
2016 Kia CadenzaLarge SedanC2
2016 Kia K900Large SedanD3
2017 Kia K900Large SedanC2
2018 Kia K900Large SedanC2
2016 Kia RioCompact SedanC2
2017 Kia RioCompact SedanC2

Those are the model years inside WhichTrim's range, 2016 onward. The campaign may cover others outside it, and the only thing that settles whether one specific vehicle is included is its VIN.

How much of it has been fixed

Source: manufacturer quarterly report, 49 CFR 573.7
Reported repaired 32%

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 23V652000 · the manufacturer calls it SC284

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.

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

What does this advisory mean?

Park outside means the vehicle can catch fire while parked and switched off, so it should be kept away from buildings and other vehicles until the repair is done. These are the two most serious things NHTSA can attach to a campaign, and both mean the risk exists while the vehicle is switched off.

Is SC284 the same recall as 23V652000?

Yes. SC284 is the number Kia America, Inc uses for this campaign in its own paperwork and in the letter it sends owners. 23V652000 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 — Kia America, Inc 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.