Exhaust
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
What Owners Say
"Hybrid system failed"
Anonymous, NY (2018 Kia Optima Plug-in 2.4-L 4 Cyl)
2018
Kia Optima
EPA MPG:
28 mpg
EPA MPG:
28 mpg
RECALL ALERT:
There are 3 recalls on this vehicle.
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Reliability
Overall Reliability
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system.
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
Owner Reported Trouble Spots
The Reliability score is based on our latest subscriber survey of 2018 Kia Optima owners. The owner comments describe problems respondents experienced with this vehicle.
In-car Electronics
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Suspension/Steering
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
Engine Major
Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Electrical Accessories
Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.
Engine Electrical
Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.
Drive System
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
Brakes
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Climate System
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Body Hardware
Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.
Transmission Major
Transmission rebuild or replacement, torque converter, premature clutch replacement.
Transmission Minor
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
Noises/Leaks
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
Engine Minor
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Paint/Trim
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Engine Cooling
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Fuel System/Emissions
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
2018 Sedans & Hatchbacks Reliability
This Car
0
100
Kia vs. Other New Car Brands Reliability
Overall Reliability Verdict
POTENTIAL TROUBLE SPOTS
Reliability indicates how models have performed in the past, providing the basis for predicting
how the vehicles will hold up in the year ahead. These charts provide the most comprehensive
reliability information available to consumers. Based on information received from our latest
subscriber survey for over 300,000 vehicles, our reliability history charts give
you a rundown on how 2000 through 2024 vehicles are holding up in 20
potential trouble spots, ranging from the engine, transmission, electric motor, EV charging, and
brakes to power equipment and the electrical accessories.
NA indicates that we did not receive a large enough sample size to provide
data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.
Recalls
PROVIDED BY
LATCHES/LOCKS/LINKAGES
Aug 24, 2023
A person inside the trunk compartment may become trapped, increasing their risk of injury.
Summary:
Kia America, Inc. (Kia) is recalling certain 2016-2017 Rio, 2016-2018 Optima, 2017-2018 Optima Hybrid and Optima Plug-in Hybrid vehicles. The trunk latch base may crack, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."
What should you do:
Dealers will replace the trunk latch base subassembly, free of charge. Owner notification letters were mailed October 19, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC278.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
NHTSA CAMPAIGN ID Number:
23V594000
Potential Number of Units Affected:
319436
ENGINE
Oct 29, 2021
A damaged engine can increase the risk of a fire or it can cause an engine stall, increasing the risk of a crash.
Summary:
Kia Motors America (Kia) is recalling certain 2017-2018 Optima Hybrid and Optima Plug-In Hybrid vehicles. The connecting rod bearings inside the engine may wear prematurely, which can result in engine damage.
What should you do:
Dealers will inspect the engine. If bearing damage is found, the engine will be replaced. Dealers will also install a software update containing a Knock Sensor Detection System (KSDS). Repairs will be performed free of charge. Owner notification letters were mailed November 29, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC218.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
NHTSA CAMPAIGN ID Number:
21V844000
Potential Number of Units Affected:
10731
HYBRID PROPULSION SYSTEM
Mar 08, 2018
If the VPD activates while the vehicle is being operated in Electric Vehicle (EV) mode, there may be a loss of power, increasing the risk of a crash.
Summary:
Kia Motors America (Kia) is recalling certain 2017-2018 Kia Optima hybrid vehicles. These vehicles are equipped with a Voltage Protection Device (VPD), designed to protect the high voltage battery module, that may activate inadvertently.
What should you do:
Kia will notify owners, and dealers will remove the VPD switch and install two newly designed Battery Management Systems (BMS) that contain Overvoltage Protection Devices (OPDs), free of charge. The recall is expected to begin May 2018. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC162.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number:
18V161000
Potential Number of Units Affected:
1710
Check Vehicle for Unrepaired Recalls
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"Software problems made the Kia Optima susceptible to theft (hotwiring). Problem resolved by software update at the dealer's service department"
Anonymous, VA (2018 Kia Optima SX 2.4-L 4 Cyl)