2018 KIA CADENZA

1 recalls — 7 complaints

21V137000 Mar 4, 2021
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Defect Description
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.
Consequence
An engine compartment fire can increase the risk of injury.
Remedy
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... Read more
379,931 vehicles affected
Manufacturer: Kia Motors America

Complaint Statistics

7 total complaints

Top Reported Components

ComponentComplaints
ENGINE5
UNKNOWN OR OTHER2
ENGINE Nov 18, 2025
Incident date: Nov 7, 2025
Complete engine failure due to rods and bearings (same as all other Kia engine recalls currently active). Ironically my car wasn’t included in the recall. Also I’ve noticed that Hyundai has extended the warranty for this same engine in the 2018 Santa Fe basically acknowledging it has a problem b... Read more
ENGINE Nov 16, 2025
Incident date: Nov 7, 2025
No prior issues/light on dashboard as the car was just serviced for coolant hose replacement. On my way home from work, the car stalled and loss power at the light. The signs were giving engine failure due to losing power then a clicking/ticking noise. After pulling over and giving the car a break I... Read more
ENGINE Sep 9, 2025
Incident date: Aug 20, 2025
Vehicle has been properly maintained and at 78k miles, while at a stop sign, the engine seized. No warning signs from vehicle appeared.
ENGINE Feb 4, 2025
Incident date: Dec 26, 2024
Failure of Oil Pressure Sensor resulting in oil leaking into wiring harness, this is the same problem with 3.3L engines in other models that KIA has extended coverage. I contacted KIA Customer Care and was told they tracked VIN and not enough Cadenzas had reported the same repair. If the problem is ... Read more
ENGINE May 16, 2019
Incident date: May 5, 2019
I PURCHASED A NEW 2018 KIA CADENZA WITH 11 MILES ON IT. I HAVE HAD THE CAR LESS THAN A YEAR AND IT RANDOMLY STALLS WHILE IN DRIVE MODE IN MOTION AND SOMETIMES WHILE SITTING IDLE. IT HAS STALLED ON THE FREEWAY, NEIGHBORHOOD STREETS, DRIVE-WAY AND ON FEEDER ROADS. THE CAR HAS BEEN IN AND OUT OF THE DE... Read more
UNKNOWN OR OTHER May 16, 2019
Incident date: May 5, 2019
I PURCHASED A NEW 2018 KIA CADENZA WITH 11 MILES ON IT. I HAVE HAD THE CAR LESS THAN A YEAR AND IT RANDOMLY STALLS WHILE IN DRIVE MODE IN MOTION AND SOMETIMES WHILE SITTING IDLE. IT HAS STALLED ON THE FREEWAY, NEIGHBORHOOD STREETS, DRIVE-WAY AND ON FEEDER ROADS. THE CAR HAS BEEN IN AND OUT OF THE DE... Read more
UNKNOWN OR OTHER Oct 13, 2018
Incident date: Oct 11, 2018
WE BECAME MORE CONCERNED AFTER SEEING A REPORT ABOUT FIRES INVOLVING KIAS THIS MORNING. OUR NEW 2018 KIA CADENZA HAD ABOUT 1,750 MILES ON THE ODOMETER ON OCTOBER 11, 2018, WHEN THE FOLLOWING OCCURRED: WE WERE ON A CITY STREET, STOPPED AT A STOP LIGHT, WHEN WE SAW SOME SMALL, LIGHT STRANDS OF SMOK... Read more

EPA Fuel Economy — 2018 KIA CADENZA

Trim / Engine City MPG Highway MPG Combined MPG Fuel Type Annual Fuel Cost
3.3L 6-cyl, Automatic (S8) (Front-Wheel Drive) 20.0 28.0 23.0 Regular $2,600

CO2 Emissions: 383.0 g/mile (Large Cars)

Source: U.S. Environmental Protection Agency (EPA). Actual fuel economy may vary based on driving conditions.

KIA CADENZA — All Years Overview

Complete safety history for the KIA CADENZA across all model years (2014–2020).

16 Total Recalls
281 Total Complaints
0 Investigations
10 Reported Crashes
7 Reported Fires
0 Reported Deaths

KIA CADENZA — Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year Recalls Complaints
2020 2 0 View
2019 1 4 View
2018 (current) 1 7
2017 2 42 View
2016 3 18 View
2015 3 64 View
2014 4 146 View

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OPTIMA 100 10,128 View
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SORENTO HYBRID 62 159 View
SOUL EV 62 50 View