AutoUtility currently tracks 48 official NHTSA owner defect complaints for the 2018 Kia Sedona. Engine & Cooling issues are the most frequently reported category, appearing in 19 complaints (39.6% of submitted records). Among these NHTSA complaint records, 1 filing cites a crash, 4 cite a fire, 1 reports one or more injuries.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
19 owner complaints submitted to NHTSA ODI for this subsystem.
11 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
4 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
4 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"2018 Kia Sedona lx stalled while my wife was driving on the highway. No warning lights were on until the vehicle lost all power. Luckily my wife was able to pull the car safely to the side. The vehicle only has 36960 miles. Brought vehicle to the dealer and they said engine was seized. That Kia..."
"The contact owns a 2018 Kia Sedona. The contact stated that the air bag and the check engine warning lights were illuminated. The vehicle failed to start and was towed to the dealer, where it was diagnosed with alternator failure; however, the battery was replaced. Additionally, the contact stated..."
"The contact owns a 2018 Kia Sedona. The contact stated that while driving at an undisclosed speed, the message "Check Auto Emergency System" was displayed and the brake warning light illuminated. Additionally, an unknown fluid was leaking near the front passenger’s side wheel. The vehicle was taken..."
"The vehicle is a 2018 Kia Sedona with approximately 122,000 miles that experienced a catastrophic engine failure resulting in complete engine seizure. The failure has been identified by an independent mechanic as a rod bearing issue. The engine remains intact and is available for inspection upon..."
"My [XXX] son pulled the seatbelt so tight it got wrapped around his neck. When I pulled over to unbuckle it, it was stuck. I turned the car off and on again to try and loosen it, but it didn't work. In the emergency, I had to cut the seatbelt with scissors. It's the passenger seatbelt in the second..."
Reported defect complaint volume across sibling model years (2015–2021)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Kia Sedona | 138 | 2 | 3 | View 2015 Problems → |
| 2016 Kia Sedona | 292 | 10 | 4 | View 2016 Problems → |
| 2017 Kia Sedona | 133 | 2 | 4 | View 2017 Problems → |
| 2018 Kia Sedona Current Page | 48 | 1 | 3 | Current |
| 2019 Kia Sedona | 36 | 2 | 2 | View 2019 Problems → |
| 2020 Kia Sedona | 20 | 0 | 1 | View 2020 Problems → |
| 2021 Kia Sedona | 9 | 2 | 0 | View 2021 Problems → |
Complete distribution of consumer defect reports across all 23 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 17 | 0 | 2 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 5 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 3 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 2 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 2 | 0 | 0 | 0 | 0 |
| AIR BAGS,SEATS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,AIR BAGS,SEATS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,AIR BAGS,STRUCTURE | 1 | 1 | 0 | 1 | 0 |
| ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 1 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,EXTERIOR LIGHTING,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| EXTERIOR LIGHTING | 1 | 0 | 0 | 0 | 0 |
| Doors, Latches & Locks NHTSA category: LATCHES/LOCKS/LINKAGES | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 1 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES, HYDRAULIC | 1 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,POWER TRAIN,ENGINE | 1 | 0 | 1 | 0 | 0 |
| Tires NHTSA category: TIRES | 1 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2018 Kia Sedona
In official NHTSA consumer records, the most frequently cited issue area for the 2018 Kia Sedona is Engine & Cooling, appearing in 19 records (39.6% of submitted filings).
Secondary reported categories include Electrical System (11) and Air Bags & Restraints (7).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 48 consumer defect complaints and 3 safety recall campaigns for the 2018 Kia Sedona.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2018 Kia Sedona, 1 filing cites a crash, 4 cite smoke or fire, and 1 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.