2020 Kia Optima problems, complaints & recalls
Most-reported problem areas: Engine (67) · Power Train (19) · Fuel/Propulsion System (7)
🧭 Reliability snapshot
Compared against other Kia Optima model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
28 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (100)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-11 · SC367_OWNR · Emissions
voluntary emissions service campaign: owner notification (sc367) - this document is the owner notification advising that kia is conducting an important voluntary emissions service campaign to improve the emissions software logic in the electronic control module (ecm) to ensure compliance with emissi
Engine 2026-09-10 · SC367_TSB · Service Bulletin/Repair Instructions
technical service bulletin: voluntary emissions service campaign: this bulletin provides information to upgrade the electronic control module ‘ecm’ system software for certain 2019-2020 my optima vehicles manufactured from may 21, 2018, through june 1, 2020, equipped with the 1.6l t-gdi engine to en
Engine 2026-09-10 · SC367_STKR · Emissions
sc367_stkr: voluntary emissions service campaign completion label/sticker
Engine 2026-09-10 · SC367_POC · Emissions
sc367_poc: proof of correction card
Engine 2026-09-09 · SC367_QA · Emissions
voluntary emissions service campaign: question and answer (sc367) – this document is the question and answer guide containing the most frequently asked questions regarding voluntary emissions service campaign sc367.
Engine 2026-09-09 · SC367_DPSM · Service Campaign
voluntary emissions service campaign: dealer parts and service manager memo (sc367) - this document is the announcement to dealer parts and service managers advising that kia is conducting an important voluntary emissions service campaign to improve the emissions software logic in the electronic con
Showing the 6 most recent of 100 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-28 · Engine“on october 25, 2026, while traveling eastbound on us highway 74 near bryson city, north carolina, my 2020 kia optima 2.4l gdi experienced a sudden and substantial loss of engine power while driving through mountainous terrain. the check-engine light began flashing, and the vehicle entered what appeared to be reduced-power or limp mode. the engine …”
2026-10-28 · Forward Collision Avoidance: Warnings“driving car on highway car would not accelerate stalled engine loud noise all lights are on now …”
2026-10-09 · Engine“my vehicle keeps consuming/burning oil. in between oil changes i still need to add oil …”
2026-10-08 · Electrical System“on august 20, 2026, while my minor son and i were inside my 2020 kia optima lx, strong burning odors and fumes entered the passenger compartment through the hvac vents. no dashboard warning lights or messages appeared before or during the incident. although no visible flames were observed, i suspected an electrical component was overheating or melt…”
2026-10-08 · Lane Departure: Assist“at around 103k miles, i took to the dealership for a multipoint inspection for knocking when braking and my forward collision/lane assist systems going offline mid drive. i learn i have to replace my axle, despite replacing my axle in sept 2025. i return a week after due to the red oil light blinking on randomly, and when i checked the oil myself i…”
2026-10-01 · Engine“ purchased this vehicle on june 18, 2024, as a second owner with 125,019 miles on the odometer. within months of purchase, the engine began exhibiting symptoms consistent with connecting rod bearing failure: engine knock, excessive oil burning (requiring oil top-ups every 2-3 weeks), and rough running. the check engine light illuminated with diagno…”
2026-09-30 · Firerelated · 185,700 mi · 🔥 fire“the contact owns a 2020 kia optima. the contact stated that while driving 32 mph, there was smoke coming from under the hood and underneath the driver's side of the vehicle, and a bystander informed the contact to exit the vehicle. the vehicle was coasted to a stop, and the contact quickly exited the vehicle. the smoke coming from the vehicle went …”
2026-09-22 · Power Train“while driving to work, my 2020 kia optima suddenly lost engine power and went into limp mode in the middle of the highway, leaving me stranded and creating a severe safety hazard in traffic. the check engine light immediately started flashing and displaying diagnostic code p1326 which indicates an abnormal engine and/or a catastrophic rod bearing f…”
2026-09-15 · Engine“the oil consumption in my 2020 kia optima is low so fast and needs to be replaced frequently. the engine is always hesitant and bucking. the car when you press the gas shakes and doesn't take off properly i have brought this up to the dealership multiple times to be told nothing is wrong. when sitting at a light idle the car shakes and the rpm's dr…”
2026-09-08 · Power Train“while driving, my 2020 kia optima suddenly lost engine power and went into limp mode on the road, leaving me stranded and creating a severe safety hazard in traffic. the vehicle threw diagnostic trouble code p1326, which indicates a catastrophic rod bearing failure. the problem has been confirmed by a kia dealership scanner. however, both the deale…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.