2018 Kia Sorento Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 249 verified NHTSA owner complaints, 3 federal safety recalls, and interquartile failure mileage telemetry.
The 2018 Kia Sorento receives a 4.8/10 MazicBay Reliability Index based on 249 verified NHTSA federal complaints and 3 safety recalls. The primary reported failure mode is Engine Stalling, Oil Consumption & Cooling Defect Reports with a median failure point at 87,000 miles (IQR: 2,750 – 100,000 mi). Out-of-warranty repairs benchmark at $950 – $3,200 .
29.3 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
3 Active / Free Remedies
2018 Sorento Failure Distribution by Vehicle Subsystem
Top Reported Problem Clusters (7)
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“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 i...”
“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...”
“I had the car for just 2 years and it's giving me a lot of problems the car smells like gas it has a gas leak the breaks don't work and the electrical system don't work properly”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“I had the car for just 2 years and it's giving me a lot of problems the car smells like gas it has a gas leak the breaks don't work and the electrical system don't work properly”
“2018 Kia Sorento, under 88,000 miles, with Theta II engine defect. KSDS update installed. Oil consumption issues requiring adding at least one liter of oil every 1,000 miles in between regular oil changes/ maintenance. Oil warning lamp does not illuminate at all or only blinks...”
“Sunroof was working properly, no issues. I parked car with sunroof open and when i restarted car it started closing extremely slow. Technicians have tried resetting but no luck. This is a safety issue that has been repeatitive on KIA Suvs since 2012 or 2014. Techs cannot reset...”
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“I was driving and when I lost all power steering the lights on the dash came on for power steering and traction I could not steer at all it was so hard to drive . I reported it right away and had my car check out there is a recall on the power steering but they are saying my c...”
“The steering started to fail and would be hard to steer while driving.I then looked further online and found that a recall was issued for the steering column and how dangerous it was to continue driving the vehicle for the cross as stated in the recall could seperate and one c...”
“Sometimes this condition hardly noticable and other times very stiff then move steering wheel slightly and full assist. Seems more prevalent after driving 1/2 hour or more on expressway steering becomes stiff and ratchety. This causes steering to stick whenever driving at high...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“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...”
“I have replaced my rotors and my brakes soon as I got the car I’ve had the car for a month now I was in a major accident. Someone walked in front of my car. My emergency brake system did not work my rotors and my brakes, have been scrubbing ever since I got the car. And I don’...”
“I had the car for just 2 years and it's giving me a lot of problems the car smells like gas it has a gas leak the breaks don't work and the electrical system don't work properly”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“I have replaced my rotors and my brakes soon as I got the car I’ve had the car for a month now I was in a major accident. Someone walked in front of my car. My emergency brake system did not work my rotors and my brakes, have been scrubbing ever since I got the car. And I don’...”
“The contact owned a 2018 Kia Sorento. The contact stated that while driving approximately 40 MPH, another vehicle had abruptly attempted to merge into the opposite traveling lane and caused the front end bumper to crash into the Front Driver-side door of the other vehicle. No ...”
“The contact owns a 2018 Kia Sorento. The contact stated that the rear driver's side seat lap belt harness anchor pin had detached while the contact's son was attempting to wear the seat belt, rendering the seat belt inoperable. The vehicle was taken to the dealer, where an unk...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“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...”
“2018 Kia Sorento 2.4 GDI. In late 2024 a Kia dealer performed an oil-consumption test and confirmed the engine was burning excessive oil. In Feb 2025 the engine long block was replaced. Within about 4,000 miles the vehicle began setting P1326 warnings, misfiring, losing power,...”
“The car is not able to shift out of park unless the shift interlock release button is depressed. This issue has occurred intermittently in the last year but has been consistent in the past few weeks of the submission of the complaint.”
Fuel Pump Pressure Loss & Fuel Delivery Defect Reports
- Sudden loss of propulsion power at highway speeds
- Extended engine cranking / failure to restart
- Fuel odor near fuel tank / engine bay
“While on the road driving at 35 MPH, the vehicle started to "bog" and losing power and/or acceleration. Had to immediately drive off the road as there were several vehicles behind. As soon as driving off the road, the vehicle died down and would not start again. The check engi...”
“The Vehicle emits a strong fuel odor: seems to be around the rear of vehicle & front engine compartment of vehicle. Seems the fuel system, both low & high pressure fuel pumps and their pipes channels are leaking to emit a strong fuel odor. Extreme high volatile combustion & fi...”
“* High pressure fuel pump quick disconnect fuel line fitting leaking fuel. * Raw fuel leaking poses a risk of fire and danger to the vehicle occupants. Raw fuel leaking in a closed in area as it did in my garage could have lead to an explosion due ignition of the fuel vapors. ...”
Official NHTSA Safety Recalls (3)
STEERING:ELECTRIC POWER ASSIST SYSTEM
Summary: Kia Motors America (Kia) is recalling certain 2018 Kia Sorento vehicles. The cowl crossbar that connects to the Motor Driven Power Steering (MDPS) steering column may be improperly welded, allowing the steering column to separate.
AIR BAGS:SIDE/WINDOW
Summary: Kia Motors America (Kia) is recalling certain 2018 Kia Sorento vehicles. The side curtain air bags on these vehicles have a component that may detach during deployment of the inflatable curtain air bag.
TRAILER HITCHES
Summary: Kia America, Inc. (Kia) is recalling certain 2016-2022 Sorento, 2021-2022 Sorento Hybrid (HEV), 2022-2023 Sorento Plug-In Hybrid (PHEV), and 2017-2022 Sportage vehicles equipped with a tow hitch harness installed as original equipment, or purchased as an accessory through a Kia dealership. Debris and moisture accumulation on the tow hitch harness module printed circuit board (PCB) may cause an electrical short, which can result in a fire.
Tools for Diagnosing the 2018 Kia Sorento
Reads & clears all DTC codes including ABS, SRS, TPMS. Live sensor data with freeze frames. Works on all 1996+ vehicles.
Pre-gapped OEM-spec iridium plugs restore smooth combustion on misfiring cylinders.
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Pre-Purchase Inspection Checklist for 2018 Kia Sorento
Before purchasing a used 2018 Kia Sorento, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 3 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2018 Kia Sorento
Is the 2018 Kia Sorento a reliable used car?
The 2018 Kia Sorento earns a 4.8/10 MazicBay Reliability Index based on 249 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2018 Kia Sorento?
The leading complaint category is Engine Stalling, Oil Consumption & Cooling Defect Reports, with a median failure point around 87,000 miles (IQR: 2,750 – 100,000 mi).
Are there free recall repairs available for the 2018 Kia Sorento?
Yes, the NHTSA records 3 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.