Buyer Research

2019 Kia Optima — Should You Buy One?

Typical asking price: $11,000–$16,000. There are 2 high-severity known issues you need to know before handing over a check.

Deciding between model years? Compare the 10 Kia Optima years we've written up →

Kestrel Take

The next-to-last Optima before the K5 replaced it, and the record says the Theta II 2.4 has changed its failure mode rather than fixed it: instead of the 2011–2014 cars' rod bearings seizing, this year's owners describe an engine that drinks a quart of oil every few hundred miles, fouls its plugs, shakes, knocks and eventually quits — 91 of 206 complaints, five fires. Owners mention a Kia oil-consumption test, a lifetime engine warranty from the class action, and a knock-sensor campaign, and also Kia telling some of them their VIN is not covered. The rest of the record is the driver aids: an FCA software recall on the turbo engines, phantom braking, and a rear wheel-speed sensor that knocks out every system at once. This is a decent, roomy, well-equipped sedan if the engine is either replaced or provably covered — so make the Kia dealer check the VIN before you make an offer, and run the oil-level test yourself.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 206 owner complaints for the 2019 Kia Optima, and 1 recall campaign.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 44% of them are about one thing — the engine. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

One recall campaign covers this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2019 Kia Optima

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

2.4 GDI burns oil, fouls its plugs and fails — 44% of the record, five firesHigh — wallet impact

Ninety-one engine complaints and the word that recurs is consumption: a quart every two weeks, two quarts low at 1,000 miles on a Kia consumption test, oil light flashing under braking, plugs fouled with oil so the engine misfires and shakes, then a knock and a shutdown in traffic. It is the Theta II 2.4 GDI, the same engine family recalled for bearings on earlier Optimas; owners here cite a technical bulletin, a lifetime engine warranty letter, and the knock-sensor campaign, while others were told their VIN is excluded. There is no engine recall on this year, so coverage is the question — ask a Kia dealer with the VIN whether the KSDS update is installed, whether the engine has been replaced, and what warranty applies to this owner. Then check the dipstick: below the full mark on a car the seller says was just serviced is the tell. Ask when it last needed oil added and how much.

Repair cost (estimate): $0 if Kia's extended engine coverage applies — confirm on the VIN; $4,000–$7,000 for an engine if it does not — around 52% of what this car is typically worth

Source: NHTSA complaints filed under the engine (91).

Forward Collision-Avoidance Assist may not brake for a stopped car (recall on turbo engines); phantom braking; a bad wheel sensor disables everythingHigh — wallet impact

Recall 19V539 covers 2019 Optimas with the 1.6 turbo or 2.0 turbo: a software error can stop the FCA's automatic braking engaging when it detects a stationary vehicle. Free software update; check it on the VIN, and note the 2.4 is not in the campaign. The 36 complaints in this cluster, eight of them crashes, go wider than the recall — the system slamming on the brakes for nothing, a warning that the sensor was blocked five miles before a deer strike, and, repeatedly, a rear wheel-speed sensor failing and taking the forward collision warning, blind-spot monitor, ABS and stability control down together. A dash lit with FCA, BSD and ABS warnings at once is usually that one sensor.

Repair cost: $0 with the recall — verify it was performed; $150–$400 for a wheel-speed sensor

Source: NHTSA complaints filed under the driver-assist and automatic braking systems (36); 1 NHTSA recall campaign on this model year.

Shuddering loss of power in traffic, valve-cover gasket leaks, and one car that smouldered in the drivewayMedium

Twenty-three electrical complaints, three fires, and most of them are the engine story wearing a different label: the car shudders and will not accelerate, the check-engine light comes on and it sputters home, and it is oil fouling the plugs or a coil giving up. One owner lists a valve-cover gasket leaking oil onto the engine as the start of their troubles; one had the car total itself in an electrical smoulder after they had got out. A mileage-discrepancy complaint in here is a reminder to look at the odometer against the service history. Scan for misfire codes and look for oil weeping from the valve cover onto the exhaust side.

Repair cost (estimate): $150–$800 for plugs, coils or a valve-cover gasket

Source: NHTSA complaints filed under electrics and electronics (23).

Walk-Away Red Flags

✗Oil below the full mark, or the seller admits topping it up between changes
✗Rough idle, shake or a misfire code on the scan
✗FCA, blind-spot and ABS warnings lit together on the dash
✗Recall 19V539 open on a turbo car
✗Oil residue on the exhaust side of the valve cover

Good Signs

✓Kia dealer printout confirming extended engine coverage on this VIN, with the KSDS update recorded
✓Replacement engine fitted by Kia, with the invoice
✓Oil at the full mark with a dated change receipt and a passed Kia oil-consumption test
✓Recall 19V539 shown closed on a 1.6T or 2.0T
✓Rear wheel-speed sensor replaced under warranty, with all driver aids showing active