183 complaints reported

2011 Kia Optima Engine

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
183
Crashes
2
Fires
11
Injuries
1

Complaint Timeline

Chronological view of owner reports

Sep 2026

I was driving in the highway doing about 80mph passing a semi truck when all of a sudden my vehicle went from 80 down to 50 mph and I was jerked forward. I thought I was rear ended but when I looked in my rear view mirror no cars were behind me. I looked down and noticed my engine light, battery light and oil light were on and turned down my music and could hear my engine was no longer running. Thankfully there wasn't much traffic and I was able to coast to the side of the highway and turn the car off. If someone would have been behind me I am confident I would have been hit. The problem has since been confirmed by a dealership and info has been sent to Kia. The dealership was unable to provide me with a loaner car as "they had none available" so I contacted Kia corporate and they are telling me my only option is that I have to come out of pocket for a rental and they will reimburse 40$ per day. I don't think especially since I had to pay for 2 nights in a hotel as I was stranded, a few hundred dollars for a tow that I should have to pay anything as the issue with what happened to my car is the fault of Kia at the time of manufacturing. At this time I have been without a vehicle for 1 week. I was told by the dealership today that they sent all of the required info over to Kia to get word on whether the lifetime extended warranty would pay for my car to be repaired. The previous owner before me did have the KSCS update performed as mandated by Kia. My problem is I am already out almost 1000$ and now they are telling me I have to pay for a rental also, they will not help me except for reimbursement which doesn't even cover half the cost of a rental per day. I am not a rich person and I cannot afford that. Everything I've read and been told indicates that a loaner or rental car is to be provided me especially if it is due to a safety concern/recall issue. I've spoken with several kia representatives and I get nowhere. I am upset.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Feb 2026
Oct 2025

I was driving down the road with my 3 sons in the vehicle and all of a sudden the vehicle and engine seized completely up and turned off. I contacted kia dealership who advised me to bring it to kia of Johnson. I took it there and my vehicle has just been setting there. It's under warranty and backed by a theta2 class action lawsuit. And they still won't touch it and are very rude.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 1986
Aug 2025

The Engine locked up while driving down the highway at 60mph. Not possible for inspection vehicle currently broke down at shop. I barely had braking power to stop vehicle. Has been confirmed by Kia dealership. Yes vehicle has been inspected by vehicle manufacturer. Check engine light came on 5 seconds before locking up. Happened [XXX] at [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 2025
Jan 2025

Engine is knocking with check engine ligh on. Kia has a recall on my car for metal shaving in the engine during manufacturing process. I took it to Kia dealer but they refused and said they wont cover it because it's a Salvage tile, and I thought Salvage tiles are covered if it's a a safety recall but they said it's not covered because Kia wont pay them for the repairs or the new engine.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jan 2023
Oct 2024

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.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Aug 2024
Jul 2024

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.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 2024
May 2024 Fire Injury

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.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Feb 2024
May 2024

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

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: May 2024
Mar 2024

Could be the barons

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 2023
Feb 2024

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.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Feb 2024
Jul 2023

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!

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jul 2023
Jul 2023 Crash

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.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jan 2023
Jun 2023

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!!

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 2023
Dec 2022

Engine shakes and engine light flashes

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Dec 2022
Jun 2022

The contact owns a 2011 Kia Optima. The contact stated while driving approximately 25 MPH, the vehicle was consuming an excessive amount of engine oil. The contact was consistently topping off the engine oil. There were no warning lights illuminated. The contact stated that there was no smoke or abnormal odor coming from the vehicle. The vehicle was diagnosed with excessive oil consumption; however, the vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 11,000.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Mar 2021
Mar 2022

My 2011 Kia Optimas engine light started flashing and the car lost all power and had no RPMS over 1000-2000. I took it to the dealership where I was told it had a code P1326 and they replaced a knock sensor. The same day that I picked my car up from them I was going down the interstate and it shut completely off and wouldn’t crank. I had it towed back to the dealership where they said I would most likely need a new engine. A few days later they call and say the engine won’t be covered under the recall because of some hose they claim was leaking for the cooling system. They said it now had a blown head gasket which I’m not sure how because it never ran hot. This is absolutely ridiculous for customers to deal with so many delays and problems just to get the repairs on their vehicle that Kia has agreed to make. If my vehicle needed a knock sensor then obviously the damage to the motor is because of faulty manufacturing of parts and I shouldn’t have to pay for a new motor!

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jun 2022
Feb 2022

[XXX] While driving my vehicle it looses power and becomes inoperable at any time and any speed. The brake, engine and oil lights come on simultaneously and there is no longer power to the gas pedal. The vehicle then has to coast to safety off of the road. This is extremely hazardous and could potentially cause an accident. When applying the brakes during this time it makes a grinding sound as if the emergency brake has been engaged. My vehicle has been to the dealership and numerous of time but they say it’s not a problem. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jan 2021
Jan 2022

The contact owns a 2011 Kia Optima. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed with metal shavings in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) however, the VIN was not included. The manufacturer was informed of failure but offered no assistance. The failure mileage was approximately 142,000.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Nov 2021
Dec 2021

I as driving on the highway and all of a sudden the car would not accelerate. The engine light, oil light, air bag lights etc. all turned on. The speed quickly dropped but I was able to to move into the safety lane. The card finally stalled and would would not start. I tried turning it back on, but the engine would not crank. The lights, radio, AC would still turn on, but the engine would not start. I have maintained it's scheduled maintenance and I was under miles until it's next oil change considering I had just changed it a month ago. I took it to get checked and was advised there was no oil and the engine was seized. I never received a warning the oil pressure was low. My car is over the 10 years and/or 100,000 k warranty as it was purchased 8/2011.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Dec 2021
Dec 2021

The contact owns a 2011 Kia Optima. The contact stated that while his daughter was driving at an undisclosed speed, the vehicle suddenly stalled. The vehicle was towed to the local dealer who diagnosed that the engine was faulty and had seized. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The approximate failure mileage was 120,000.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: May 2021
Oct 2021

I DID A OIL CHANGE ON THE CAR AFTER THAT THE OIL JUST KEPT LEAKING. I HAD TO PUT 2 TO 3 QUARTS OF OIL IN EVERY WEEK. THEN ON MY WAY HOME FROM TAKING MY DAUGHTER TO HER APPOINTMENT THE CAR SHUT DOWN ON ME ON THE HIGHWAY WITH A SEMI BEHIND ME WHICH ALMOST HIT ME. I DON'T DIVE IT ANYMORE I GOT ANOTHER CAR BECAUSE OF IT.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jan 2021
Oct 2021

CODE SHOWING IS P1326 - KSDS - ROD BEARING WEAR. ENGINE LIGHT IS FLASHING AND VEHICLE HAS WENT INTO LIMP MODE/LOSS OF POWER.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Sep 2021
Oct 2021

I WAS DRIVING DOWN THE ROAD AND ALL OF A SUDDEN IT STALLED ON ME. IT WON'T TURN OVER OR ANYTHING. IT STILL HAS ALMOST 1500 MILES ON UNTIL THE NEXT OIL CHANGE AND THE OIL PLUG IS ON AND TIGHT. WHEN I CHECKED THE OIL IT WAS NOT READING ANYTHING ON THE DIP STICK. THE HAS NOT BEEN ANY OIL LEAKING ON THE GROUND. I WAS DRIVING ON A MAJOR STREET IN MY TOWN GOING STRAIGHT

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Sep 2020
Sep 2021

I pulled out from a parking lot into traffic and not less then 5 seconds later the car sputtered once and then completely shut off in the middle of traffic. I was able to coast into the bike lane but was in fear that I would be rear-ended and possibly might incur injuries or harm would be caused to others due to the the manner in which I had not control or could prevent an accident occurring. The vehicle was towed to a mechanic and was diagnosed on with Engine Failure/Engine Lock Code P1326 w/ Internal Kia Code SC147. The vehicle will not move. There were no warning lamps, messages or other symptoms that would indicate engine failure and risk of a possible accident.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Oct 2021
Aug 2021

I WAS DRIVING FORWARD, IN MOTION, MY KIA OPTIMA 2011 ON A HIGHWAY WHEN I BEGAN TO NOTICE A LOUD TICKING NOISE COMING FROM THE ENGINE. I IMMEDIATELY BECAME CONCERNED, SLOWED DOWN, AND STUCK TO THE RIGHT LANE. THEN, 15 MINUTES AFTER FIRST HEARING THIS LOUD NOISE, I COULD NOT ACCELERATE ANYMORE AS THE NOISE BECAME LOUDER. THEN I HEARD A SMALL CRASH/EXPLOSION, SMOKE CAME OUT FROM THE HOOD, IT BEGAN TO SMELL TERRIBLE AND I WAS TRULY SCARED FOR MY LIFE IN TRYING TO STOP THE CAR ON THE CURB, UNABLE TO SEE WHERE I WAS DRIVING BECAUSE OF THE SMOKE AND UNABLE TO CONTROL THE CAR. THANK GOD I WAS ABLE TO STOP ON THE SIDE OF THE ROAD, AND HAD TO HAVE THE CAR TOWED BY GEICO. MY CAR HAS ONLY 88K MILES AND I HAVE HAD IT SINCE 2014'THIS IS UTTERLY ACCEPTABLE TO HAVE AN ENGINE BLOW OUT SO SUDDENLY, AT SO LITTLE MILEAGE, AND PUT MY LIFE IN DANGER. THANK YOU VERY MUCH FOR YOUR CONSIDERATION IN INVESTIGATING THIS.

Type: Vehicle, Vehicle: 2011 KIA OPTIMA, Manufacturer: Kia America, Inc.
Incident: Jul 2021

Trend Over Time

Complaints by year

Quick Summary

The 2011 Kia Optima has 183 Engine complaints on file. 2 crashes have been reported. Review the timeline above for detailed owner experiences.