AutoUtility currently tracks 252 official NHTSA owner defect complaints for the 2018 Kia Sorento. Engine & Cooling issues are the most frequently reported category, appearing in 102 complaints (40.5% of submitted records). Among these NHTSA complaint records, 12 filings cite a crash, 11 cite a fire, 10 report one or more injuries, 1 reports one or more fatalities.

Key Problem Findings
  • Total NHTSA Complaints: 252 reports
  • #1 Reported Problem Area: Engine & Cooling (102 reports • 40.5% of submitted complaints)
  • Secondary Problem Areas: Exterior Lighting (41), Electrical System (29)
  • Crash-Citing Complaints: 12 filings
  • Fire-Citing Complaints: 11 filings
  • Complaints Reporting Injuries / Fatalities: 10 injury filings • 1 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
252
Submitted to NHTSA ODI
Crash-Citing Complaints
12
Filings citing a collision
Fire-Citing Complaints
11
Filings citing smoke or fire
Complaints Reporting Injuries
10
Filings citing one or more injuries
Complaints Reporting Fatalities
1
Consumer filings citing fatalities

Most Reported Problems for 2018 Kia Sorento

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 40.5% of complaints

Engine & Cooling

102 owner complaints submitted to NHTSA ODI
🔥 7 fire reports 🩹 1 injury report entry
#2 Problem Area 16.3% of complaints

Exterior Lighting

41 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#3 Problem Area 11.5% of complaints

Electrical System

29 owner complaints submitted to NHTSA ODI
🔥 3 fire reports
#4 Problem Area 10.3% of complaints

Steering System

26 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
🔥 1 fire report
#5 Problem Area 6.3% of complaints

Driver Assistance & Safety Tech

16 owner complaints submitted to NHTSA ODI
⚠️ 3 crash reports 🩹 3 injury report entries
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Symptoms Mentioned in NHTSA Owner Reports for 2018 Kia Sorento

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.

Engine & Cooling 6.7% of complaints

Engine Coolant Intrusion / Oil Leak

17 complaint narratives describe this symptom
Powertrain & Transmission 6.3% of complaints

Loss of Motive Power While Driving

16 complaint narratives describe this symptom
Body & Structure 2% of complaints

Smoke, Burning Odor or Thermal Event

5 complaint narratives describe this symptom
Symptom Identification Method: A complaint may describe more than one symptom, so percentages may sum to more than 100%. Symptom identification reflects text contained in consumer-submitted complaint records and does not establish a confirmed mechanical diagnosis.

Recent NHTSA Owner Reports for 2018 Kia Sorento

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Fuel & Propulsion System NHTSA ODI ID: #11760017
Filed: 08/27/2026

"The High Pressure Fuel Pump failed while driving on highway. I took it to the Kia dealership and they told me of the issue. There were no prior warnings of issues Kia recalled all 2019-2020 kia sorentos with this same issue. This component should not have failed at 63k miles and Kia should extend..."

Incident Date: 08/22/2026 • Raw NHTSA Component: FUEL/PROPULSION SYSTEM
Driver Assistance & Safety Tech NHTSA ODI ID: #11759839
Filed: 08/26/2026

"The abs module has failed. Yes vehicle is available for inspections if wanted and would be appreciated. Had it scanned by dealership and it’s too expensive to fix. Lights on are abs. Traction control. Auto hold. Autonomous braking. Thank you"

Incident Date: 08/14/2026 • Raw NHTSA Component: SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
Engine & Cooling NHTSA ODI ID: #11758177
Filed: 08/20/2026

"The contact owns a 2018 Kia Sorento. The contact stated that while driving 50 MPH and depressing the accelerator pedal, the vehicle failed to respond as needed. There was smoke coming from the rear of the vehicle. The contact exited the freeway and waited for AAA to tow the vehicle to the..."

Incident Date: 08/18/2026 • Raw NHTSA Component: ENGINE
Engine & Cooling NHTSA ODI ID: #11758172
Filed: 08/20/2026

"I am a working parent filing a formal complaint against Kia America and Classic kia of Carrollton for non-compliance with the Theta II Class Action Settlement mandates. My vehicle experienced a qualifying engine failure and is currently held at the dealership. The dealership is actively refusing to..."

Incident Date: 08/10/2026 • Raw NHTSA Component: ENGINE
Brakes & Traction Control NHTSA ODI ID: #11748348
Fire Cited Filed: 07/05/2026

"My wife and I were Driving when I tried to stop and the brakes failed. Within seconds the vehicle caught fire in the engine compartment. I had to slam the transmission into park cause the doors would not open. When my wife tried to escape out the passenger side the flames came into the cabin..."

Incident Date: 06/18/2026 • Raw NHTSA Component: SERVICE BRAKES,ENGINE
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Kia Sorento

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Kia Sorento 747 20 3 View 2015 Problems →
2016 Kia Sorento 1245 29 8 View 2016 Problems →
2017 Kia Sorento 798 13 4 View 2017 Problems →
2018 Kia Sorento Current Page 252 12 3 Current
2019 Kia Sorento 422 10 2 View 2019 Problems →
2020 Kia Sorento 132 9 1 View 2020 Problems →
2021 Kia Sorento 26 0 5 View 2021 Problems →
2022 Kia Sorento 218 5 9 View 2022 Problems →
2023 Kia Sorento 154 4 4 View 2023 Problems →
2024 Kia Sorento 45 4 2 View 2024 Problems →
2025 Kia Sorento 119 7 4 View 2025 Problems →
2026 Kia Sorento 0 0 2 View 2026 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2018 Kia Sorento

Complete distribution of consumer defect reports across all 59 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Engine NHTSA category: ENGINE 72 0 0 0 0
EXTERIOR LIGHTING 24 0 0 0 0
Steering NHTSA category: STEERING 22 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 20 0 3 2 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING 10 0 0 0 0
Air Bags NHTSA category: AIR BAGS 8 6 0 5 0
TRAILER HITCHES 7 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 5 0 1 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 5 0 0 0 0
Structure & Body NHTSA category: STRUCTURE 5 0 0 0 0
Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING 4 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 4 1 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 3 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 3 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 3 0 0 0 0
POWER TRAIN,ENGINE 3 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 3 0 0 0 0
UNKNOWN OR OTHER,ENGINE 3 0 1 1 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 3 1 0 1 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,VISIBILITY/WIPER 2 0 0 0 0
EXTERIOR LIGHTING,ENGINE,FUEL/PROPULSION SYSTEM 2 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER 2 1 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE 2 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 2 0 0 0 0
AIR BAGS,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 1 0 2 1
AIR BAGS,STRUCTURE,UNKNOWN OR OTHER 1 1 0 0 0
BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,SEATS 1 0 0 0 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,VEHICLE SPEED CONTROL 1 0 0 0 0
ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE 1 0 0 0 0
ELECTRICAL SYSTEM,STRUCTURE,ENGINE 1 0 1 0 0
ENGINE AND ENGINE COOLING,ENGINE 1 0 1 0 0
ENGINE AND ENGINE COOLING,POWER TRAIN 1 0 0 0 0
ENGINE,ENGINE AND ENGINE COOLING 1 0 0 0 0
ENGINE,VISIBILITY/WIPER 1 0 0 0 0
EXTERIOR LIGHTING,UNKNOWN OR OTHER 1 0 0 0 0
FIRERELATED 1 0 1 0 0
FORWARD COLLISION AVOIDANCE,LANE DEPARTURE 1 0 0 0 0
LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 1 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER,ENGINE 1 0 0 0 0
SERVICE BRAKES,ENGINE 1 0 1 0 0
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,ENGINE 1 0 1 0 0
STEERING,ENGINE 1 0 0 0 0
STEERING,LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
STEERING,VEHICLE SPEED CONTROL,ENGINE 1 0 0 0 0
STRUCTURE,ENGINE 1 0 1 0 0
TIRES,WHEELS 1 0 0 0 0
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM 1 0 0 0 0
UNKNOWN OR OTHER,LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
VEHICLE SPEED CONTROL,ENGINE 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
VISIBILITY,STRUCTURE 1 0 0 0 0
Wheels & Hubs NHTSA category: WHEELS 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (252). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.

Official NHTSA Defect Investigations (1)

1 CLOSED

Formal safety defect inquiries and engineering analyses opened by the NHTSA Office of Defects Investigation (ODI)

Official Federal Inquiries: NHTSA opens a defect investigation when safety screening or consumer defect trends indicate a potential unreasonable safety risk. An open investigation is a formal inquiry and does not by itself confirm a defect or result in a mandatory recall.
CLOSED Defect Petition (DP) ODI Action #DP22003
Opened: 2022-09-12 • Closed: 2023-12-12

Loss of Motive Power

Affected Component: ENGINE

The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experienc...

Closed without associated recall campaign. Official NHTSA File →
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.