Showing the 2017 Cadenza Premium Pano. NHTSA's VIN data shows it with a 3.3 L engine, but that may not be every version of it, so the numbers below cover every version of this model year. Every version
Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 18, 2026.
Fuel economy
23 mpgcombined; city 20, highway 28; every version of this model year
Five years of fuel
$14,120U.S. average; Ohio $12,620 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA overall safety rating
Not ratedNHTSA has no overall rating for this year
NHTSA's VIN data lists these trims for the 2017 Cadenza. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.
Owners have filed 33 complaints with NHTSA about the 2017 Cadenza. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Engine
12
0
0
0
Electrical system
6
0
1
0
Unknown or other
6
1
1
0
Fuel/propulsion system
5
0
0
0
Wheels
3
0
0
0
Air bags
2
1
0
1
Seat belts
2
0
0
0
Service brakes
2
2
0
0
Service brakes, hydraulic
2
0
0
0
Steering
2
0
0
0
Suspension
2
0
0
0
Engine and engine cooling
1
0
0
0
2 more parts
Tires
1
0
0
0
Vehicle speed control
1
1
0
1
What the columns count
Complaints: complaints that name that part. One complaint can name several parts, so the rows overlap and don't add up to the total.
Crashes and Fires: complaints that report one. Two owners can file about the same event, and NHTSA doesn't link them, so these count reports, not events.
Injuries: the number of people the complaints say were injured.
None of these columns shows that a part caused a crash, fire or injury: they're what owners reported, unverified.
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 2 recall campaigns for the 2017 Cadenza over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
Service brakes, hydraulic: antilock/traction control/electronic limited slip
NHTSA campaign 21V137000 · reported Mar 4, 2021 · 379,931 vehicles potentially affected across the whole campaign
Park outside
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 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.
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.
NHTSA campaign 17V190000 · reported Mar 16, 2017 · 47 vehicles potentially affected across the whole campaign
Remedy: Kia will notify owners, and dealers will inspect the brake vacuum hose, replacing it as necessary, free charge. The recall began on April 17, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC146.
Kia Motors America (Kia) is recalling certain 2017 Cadenza vehicles. The brake vacuum hose on the affected vehicles may kink, reducing braking performance.
Risk: Reduced braking performance can lengthen the distance needed to stop the vehicle, increasing the risk of a crash.
Carmakers sent NHTSA 72 service bulletins and notices that cover the 2017 Cadenza, the latest on Dec 18, 2025. They tell dealers how to fix known issues.
The parts they mention most: engine (15), electrical system (14), equipment (8), engine and engine cooling (7), fuel/propulsion system (7).
NHTSA defect investigations
Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.
Investigation
Part
Opened
Status
Audit query AQ23002 Hyundai and Kia ABS Module Fires · covers 3 makes
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2017 Cadenza.
EPA class: large cars. EPA greenhouse gas score: 5 out of 10. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
Cadenza Front-Wheel Drive
3.3 L, 6 cyl
Automatic (S8)
Regular Gasoline
20 / 28 / 23
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 18, 2026
NHTSA recalls, file of Oct 18, 2026
NHTSA manufacturer communications, file of Oct 18, 2026
NHTSA defect investigations, file of Oct 18, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data