Problems · NHTSA complaints
2011 Kia Optima Hybrid problems
Owners filed 34 complaints about the 2011 Kia Optima Hybrid with NHTSA between Nov 2012 and Nov 2024. The most-cited component is engine (19).
Complaints
34
Filed with NHTSA
Crashes
2
Reported by owners
Fires
2
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine19
- Electrical system6
- Power train4
- Air bags4
- Service brakes, hydraulic3
- Vehicle speed control3
- Steering2
- Service brakes2
- Seats2
- Seat belts1
- Tires1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 7, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
2
3
1
0
3
5
8
7
0
0
0
1
4
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2012 | 2 |
| 2013 | 3 |
| 2014 | 1 |
| 2015 | 0 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 1 |
| 2024 | 4 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine
19 reports2 fires1 related recall
“The contact owns a 2011 Kia Optima Hybrid. The contact stated while driving 50-60 MPH, there was smoke coming out from underneath the hood of the vehicle. The check engine warning light and other unknown warning lights were illuminated. The vehicle was taken to an independent mechanic, where the engine was cleaned and the spark plugs were replaced; however, the failure recurred while driving. The contact was able to pull into a parking lot and park the vehicle. The vehicle was towed to the residence. The vehicle was then towed to the local dealer and failed to restart. The dealer informed the contact that the vehicle could not be serviced because it was out of warranty. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) and to Kia Campaign Number: SC200. The manufacturer was not notified of the failure. The failure mileage was approximately 131,000.”
Electrical system
6 reports2 fires
“ECU MALFUNCTION CAUSING MISFIRE IN CYLINDER ONE RESULTING IN IGNITION COIL MELTING AND AND CAUSING ELECTRICAL FIRE IN ENGINE BAY WHILE IN MOTION ON LOCAL STREET. VEHICLE IS NOW INOPERABLE.”
Power train
4 reports
“WHILE DRIVING (IN FORWARD MOTION), WITHOUT ANY PRESSURE BEING APPLIED TO EITHER THE BRAKE OR PARKING BRAKE, THE VEHICLE BEGINS TO SLOW ITSELF RAPIDLY LOSING ACCELERATION.; A RUMBLE CAN BE HEARD THERE IS CONSISTENT BEEPING NOISE AND THE VEHICLE BEGINS TO VIBRATE SLIGHTLY. A YELLOW TRIANGLE WITH AN EXCLAMATION POINT AND THE WORDS CHECK BRAKE APPEARS IN THE DRIVERS DISPLAY; ATTEMPTS TO ACCELERATE INCREASES THE RPMS BUT THE VEHICLE CONTINUES TO SLOW RAPIDLY. NOT IDLE AS IF IT WERE NOT IN GEAR, BUT JUST AS IF THE DRIVER WAS BREAKING SUDDENLY. THE ONLY KNOWN METHOD OF CORRECTING THIS IS TO TURN THE VEHICLE OFF AND RESTART IT. HOWEVER, THIS STOPS WORKING AS A SOLUTION AFTER A FEW DAYS AND THE PROBLEM PERSISTS. WHEN THE VEHICLE RESTARTS YOU CAN FEEL THE BRAKE PEDAL RELEASE. THIS HAS OCCURRED RANDOMLY AT LEAST 20 TIMES IN THE PAST BEFORE UNTIL EVENTUALLY IT COULD NOT BE DRIVEN AT ALL. AT SPEEDS RANGING FROM 25 MPH ON NEIGHBORHOOD STREETS TO 70 MPH ON BUSY FREEWAYS. I SINCERELY FEAR THAT IF NOT CORRECTED IT WILL LEAD TO A (POTENTIALLY FATAL) VEHICLE COLLISION. I ALSO TOOK THE VEHICLE TO A NEAR-BY KIA DEALER SERVICE DEPARTMENT IN CA. AFTER MONTHS THE CAR WAS RETURNED AND…”
Air bags
4 reports2 crashes1 related recall
“TL* TAKATA RECALL. THE CONTACT OWNS A 2011 KIA OPTIMA HYBRID. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V363000 (AIR BAGS); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. SMITHTOWN KIA (726 MIDDLE COUNTRY RD, ST JAMES, NY 11780, (631) 724-8008) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.”
Service brakes, hydraulic
3 reports1 related recall
“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 manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.”
Vehicle speed control
3 reports
“TL* THE CONTACT OWNS A 2011 KIA OPTIMA HYBRID. THE CONTACT STATED THAT WHILE ACCELERATING FROM A COMPLETE STOP, THE VEHICLE HESITATED AND SUDDENLY ACCELERATED. THE DEALER COULD NOT DIAGNOSE THE CAUSE OF THE FAILURE. THE FAILURE OCCURRED AT VARIOUS LOW SPEEDS. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 21. UPDATED 8/11/14*CN”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 7, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.