Home · 2018 · Kia
2018 Kia Cadenza
Limited data: few reports on file, read the verdict loosely
Too few owner complaints are on file to affirm this car. Treat it as unproven, not endorsed, and lean hard on a professional pre-purchase inspection.
7 owner complaints · 1 recalls · data verified July 21, 2026 · source: NHTSA
What the record shows so far
Has a "park it / park outside" recall, the most serious kind. Verify the fix was done before buying.
Only 7 owner complaints on file for this exact model year, too few to judge long-term reliability. Treat this as unproven, not endorsed, and lean on a professional inspection.
Score breakdown, by factor
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
How it crashes
NHTSA’s own crash tests, separate from the reliability score above.
NHTSA crash-tested this model year but didn’t publish an overall star rating for it.
1 open NHTSA defect investigation on file for this model year, separate from the recalls above.
Source: nhtsa.gov/ratings. Star ratings compare vehicles within the same class and size, not across every car on the road.
The road ahead
What breaks on a 2018 Kia Cadenza, plotted where owners report it happening.
Also reported (mileage varies): Engine (5)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Engine
71%5 complaints · 4 in the last 2 years
“Vehicle has been properly maintained and at 78k miles, while at a stop sign, the engine seized. No warning signs from vehicle appeared.”
Airbags
14%1 complaints · 1 in the last 2 years
“The airbag light randomly came on 2 weeks ago and stayed on , indicating that the airbags would not deploy in the event of an accident. I called my mechanic, who confi…”
Check it against this car’s mileage
Type the odometer reading on the actual car you’re looking at to see which of these problem areas owners tend to report before it, around it, or after it.
Too few owners named a mileage on this model to place issues against an odometer yet.
Recalls (1)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Park itService Brakes, Hydraulic · 21V137000
Kia Motors America (Kia) is recalling certain 2017-2021 Sportage and Cadenza vehicles. The electrical circuit in the Hydraulic Electronic Control Unit (HECU) may short-circuit, which can cause a fire in the engine compartment.
Risk: An engine compartment fire can increase the risk of injury.
Fix: Owners are advised to park outside and away from structures as a precaution until the recall repair is complete. Kia will notify owners, and dealers will replace certain fuses in the electrical junction box. Vehicles equipped with an electronic parking brake (EPB) will also receive a HECU software update. Repairs will be performed free of charge. The recall began on April 30, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC206.
Questions to ask the seller
Questions worth asking the seller of this Kia before you buy, drawn from its public record:
- NHTSA lists 1 recall campaign for the 2018 Kia Cadenza. Can you run this car's VIN at nhtsa.gov/recalls and confirm each one shows "Remedy Completed"? One is a "park it" / "park outside" order, the most serious kind, so I'd want that repair documented before I drive it.
- Owners of this model report engine problems more than anything else. Has this car shown any engine symptoms, and are there repair records for it?
- Has this car been in any accident or had any structural, airbag, or flood-related repair? Do you have a clean title and a recent history report (Carfax / AutoCheck)?
- How many owners has it had, do you have the maintenance records, and why are you selling it?
- Are you open to me having an independent mechanic inspect it before we settle on a price?
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150 to $250 independent inspection of this exact 2018 Kia CADENZA beats every score on the internet, including ours.
What to ask forNot set on the 2018? See how every Cadenza model year scores →
Cross-shopping? Compare the 2018 Kia Cadenza against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.