10.0

really awful
Crashes / Fires:
6 / 20
Injuries / Deaths:
5 / 1
Average Mileage:
93,896 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.

2011 Kia Optima engine problems

engine problem

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2011 Kia Optima Owner Comments (Page 1 of 13)

problem #246

Jan 032025

Optima

  • miles

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

Hydraulic Electronic Control Unit (HECU) experienced an electrical short circuit and engine hardly running.

- Westland, MI, USA

problem #245

Aug 302024

Optima

  • miles
2 weeks ago my 2011 Kia Optima's engine died while driving. I am the 2nd owner of the car and bought it in summer of 2022 (not 2020). Before buying the car private sale, I sought my mechanics advice who told me Kia engines had issues going back to 2011. Before buying, my brother called the closest Kia dealership to confirm the owner was telling the truth that he had taken the car in for all safety recalls. Kia told my brother the engine and vehicle belonging to the VIN he provided were good to go and that the engine recalls were done. After my car died, I had it towed to my mechanic and was told the engine was bad. I called Russ Darrow Kia and informed them of the situation. I don't recall who I spoke with, but I asked about the recalls and any red flags that would void any warranties on the engine. I was told there were none and I should have the car towed to have them do an engine inspection. On September 7th, I called Kia because I had not heard anything about my car. I was told an inspection was done but the warranty was voided because a recall for NOX sensor had not been done. I called Kia consumer and spoke with a supervisor who just read a template of the Federal Lawsuit and how due to the voided warranty, Kia would not replace my engine. I explained how I had called prior to buying the car and confirmed the engine was up to date with any recalls and I had not received any recall notices for the NOX sensor nor any others pertaining to the engine. I only ever received a recall notice about the anti theft software. The supervisor was extremely insensitive toward me and told me there were numerous recalls and that whomever I called at Kia would have never told me the car was good to go. I would've taken it in if I knew about the recall, or any other. They are refusing to replace the engine. Kia is charging me $190 for their diagnosis and a quote on a replacement engine. The car was well maintained with prompt oil changes. I feel like I'm being scammed.

- Madison, WI, USA

problem #244

Jun 262024

Optima

  • miles
Mi carro estaba bien ninguna luz de testigos prendidos de pronto iba por la carretera conduciendo se freno y se apago gracias a Dios no ocurrió ningún accidente. Lo volví a prender sonaba el motor como si tuviera un tic tac y se prendió las luces de testigo de motor.

- Arvada, CO, USA

problem #243

Jun 192024

Optima

  • miles

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

Recall states to not drive vehicle due to HECU which can result in an engine compartment fire. I have contacted 3 dealerships and corporate. There are 15,000 dealerships/service centers that have technology/technical issues. I have spent 3 days, and 12 hours trying to get assistance. I'm being told corporate is not providing any additional support or payment to individually owned dealerships. Expecting them to cover additional expenses. I am disabled and need to go to treatments/procedures multiple times a week. They are backed up 1-2 months for an appointment. Consumers are to pay everything up front and then 90 days later request a reimbursement. They will not provide or pay for a rental or loaner car until the car is being serviced. Therefore they are leaving me with no vehicle for up to 2 months as their letter clearly states that the vehicle is not to be driven and is unsafe. I should not be inconvenienced because Kia made a mistake and is now having to perform a recall, 15,000 stores are not able to perform because of technical issues, they are so far behind in their service appointments which should not have any effect on me and I should not be responsible to pay for any of this and they should absolutely provide me with the vehicle and not leave me with no transportation for 2+months. I am unable to get to my appts. for treatments, my daughter cannot Drive to work. And they have absolutely no solution for me and telling me that there is nothing that can be done other than me paying $45/day out of pocket. they Stated that I personally would be charged to do a full diagnostic test to confirm that there are no safety issues, however corporate stated that it was required in order to get my car back. This has been an absolute nightmare, I am also wanting to know if ada would get involved in something like this as they are not making any type of reasonable accommodation for me. There has to be a law preventing this that they are required to provide a vehicle unt

- Winder, GA, USA

problem #242

Feb 242024

Optima

  • 192,910 miles
The contact called on behalf of an insurer who owned a 2011 Kia Optima. The contact stated that while the client was on the highway driving at an undisclosed speed, he was flagged down to be told their vehicle was releasing smoke. The client noticed an open flame coming from the undercarriage and was able to veer the vehicle to the shoulder prior to ejecting himself from the vehicle before it was engulfed in flames. The client sustained minor injuries to their knee and finger while exiting the vehicle. No other injuries or passengers were reported. The fire was extinguished by the Fire Department. A fire report was filed. A police report was not filed. The dealer was not contacted. The vehicle was destroyed. ?The manufacturer was notified of the failure. The failure mileage was approximately 192,910.

- San Diego, CA, USA

problem #241

May 202024

Optima

  • miles
I could not brake and almost caused a car accident. Brakes gave out, no gas, it smelled like it was going to catch on fire.

- Portage , IN, USA

problem #240

May 182024

Optima

  • miles

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

We had someone hit our vehicle and our ins co totalled the vehicle instead of repairing it due to the check engine light being on because of this recall

- Providence, RI, USA

problem #239

Mar 302024

Optima

  • 157,000 miles
The contact owns a 2011 Kia Optima. The contact stated that while driving at an undisclosed speed, she smelled smoke in the interior of the vehicle. The air bag and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the knock sensor. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number:?23V652000 (Service Brakes, Hydraulic), and the VIN was included, but parts were not yet available. The manufacturer was not notified of the failure. The failure mileage was 157,000.

- Mcdonough, GA, USA

problem #238

Mar 182024

Optima

  • miles
On [XXX] while driving my oil light came on. Since I assumed I was low on oil, I proceeded to nearest gas station, approx 10 min.away, and added oil. I let engine remain off for approx.20 min. When I started the car up blue smoke began coming out from front and rear and there was a knocking noise. Since this is an engine that had already been replaced due to a recall, and now symptoms have returned I suspect engine might have failed again. I have always done my oil changes and have not had any issues. I had car towed towed to San Jose and contacted a mobile oil service to have oil drained out and replaced. When he was finished he said there were particles in oil removed and suspected engine had failed and I should not drive. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- San Jose, CA, USA

problem #237

Oct 032023

Optima

  • miles
NHTSA Recall

- Joliet , IL, USA

problem #236

Jun 142023

Optima

  • miles

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

Could be the barons

- West Warwick, RI, USA

problem #235

Sep 252023

Optima

  • 5,500 miles
The contact owns a 2011 Kia Optima. The contact stated that the brakes were making an abnormal noise. There was an abnormal odor of fuel detected. The windshield was fogging up. The engine warning light was illuminated and turned on and off. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 5,500. VIN tool confirms parts not available.

- Savannah, GA, USA

problem #234

Feb 272024

Optima

  • 180,000 miles
The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the vehicle failed to start up after not being drive for a while. The check engine warning was illuminated. The vehicle was taken to a local dealer to be diagnosed with an unknown result. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 180,000.

- Fayetteville, NC, USA

problem #233

Feb 142024

Optima

  • miles
Known recall since Sept 2023, but Kia has not provided any dealerships with parts to repair (we have tried multiple dealerships within a 2 hour radius). Only recommendation is to "Park your vehicle outdoors and away from other vehicles or structures until you have the recall performed" which is an unacceptable option for 6 months. Now check engine light is on and still no indication as to when it can be fixed. Kia is not offering a loaner or rental until issue resolved.

- Harrisburg, NC, USA

problem #232

Dec 232023

Optima 4-cyl

  • miles
Check engine has failed. Glow relay stuck on or knock sensor or engine warranty. I don't know. Kia service will find out what's wrong with my car.

- Tecumseh, NE, USA

problem #231

Jul 222023

Optima

  • miles
My car won-??t crank. Starter is not working. Ask if warranty or recall. Let-??s see if they accept warranty for starter replacement. My car towed to Kia of Lincoln in Lincoln, Nebraska where the car parked there right now. Please contact Kia at Lincoln and I better hope warranty are accepted and diagnostic are free too. Thank you!

- Tecumseh, NE, USA

problem #230

Jul 222023

Optima

  • miles
I saw low battery due to fire risk or overheated cause of oil change. I don't know what's wrong with my car. Engine knocking bad if warranty coverage accepts. I hope safety recalls will be approved. Please help me!

- Tecumseh, NE, USA

problem #229

Jun 182023

Optima

  • miles
Merging onto the highway & the car had rod kncok & went into limp mode very dangerous & a good thing we weren't hit by traffic. This is the SECOND engine kia has installed after allegedly "FIXING" thier issues the first time!!

- Detroit, MI, USA

problem #228

Jan 012023

Optima

  • miles
Blinking check engine light at 113000 miles on the car cuzs stalling while driving was worried about an engine fire I did read about on same model.

- Mcdonald , PA, USA

problem #227

Dec 162022

Optima

  • miles
As I would drive the vehicle a rattling noise would occur when every time I accelerate from stopping at a traffic light. Then the engine light appeared on the dash board. When I went to have the engine light checked the results came back about an oil gasket. I then got an oil change soon after. The rattling noise and the same acceleration problem still occurred. Soon after it gotten worst to the point couldn-??t go faster then 10 mph and then the car kept shutting off.

- South Chesterfield, VA, USA

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