CarComplaints.com Notes: 2020 is the last year for the Optima badge in North America, as its been rebranded to the K5 to match the international naming scheme.

10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 Kia Optima fuel system problems

fuel system problem

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2020 Kia Optima Owner Comments

problem #4

May 042024

Optima

  • miles

A D V E R T I S E M E N T S

I was stopped at a red light and the car stayed on but just stopped working. I had to wait for it to reset itself, or at least that was what it felt like it was doing. I got the oil changed in it the next day and about three weeks later the low oil light has come back on.

- Chickamauga, GA, USA

problem #3

Jun 012023

Optima

  • miles
Dealers claim pistons are bad and engine is stalking eating through 2 quart every thousand miles or less. Properly maintained and everything not sure why the pistons would be bad already, also replaced a pcv sensor to fix problem but did not change anything.

- Hemet, CA, USA

problem #2

Feb 242022

Optima

  • miles
Vehicle was tampered before purchasing, transmission mounts broken, evap hose gas tank and engine.. car was claimed as a lemon vehicle, dealership sold me a vehicle that-??s unsafe to operate. Dealership refuses to fix-??

- Orland Hills, IL, USA

problem #1

Aug 152021

Optima

  • miles
Fuel line had a quick detachment have to be replaced

- Nashville , TN, USA

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