My daughters 2016 Kia Optima is shutting off while driving. Sometimes it restarts after shutting down. Sometimes she has to hurry and put in neutral and restart as cars behind me don't know the car has shut off. She feels very unsafe and is afraid someone is going to run into her. Took it to Kia dealer and they ran codes but nothing came up and they couldn't get it to duplicate. Happened two more times, took it in they ran codes with no results and updated the 1802 software. One day later it shut off again while at a stop light. Not always at a stop light sometimes driving 45 mph or turning a corner. This issue seems to affect many different Kia vehicles on internet but there is nothing listed by anyone that has fixed the problem. Again my daughter feels unsafe and doesn't want to drive the car till it is fixed. This problem has happened about 7 times. I am showing the latest date below.

- Palm Harbor, FL, USA

The contact owns a 2016 Kia Optima. While driving 45 mph, the vehicle lost forward momentum without warning. The contact stated that the accelerator pedal was depressed to the floorboard; however, the vehicle failed to respond. The vehicle was taken to rick case Kia (3190 satellite blvd, duluth, ga 30096, (678) 321-1590) to be diagnosed, but the mechanic was unable to duplicate the failure. The contact stated that the failure occurred after leaving the dealer. The vehicle was taken to an independent mechanic who diagnosed that the intake tube fractured and needed to be replaced. The vehicle was repaired. The manufacturer was contacted. The approximate failure mileage was 69,000.

- Snellville, GA, USA

Letter from congressman earl L buddy carter on behalf of constituent, regarding issues with a Kia purchased in savannah, Georgia. The consumer stated the vehicle has experienced various issues including the battery being replaced 5 times in 8 months, multiple engine issues, electrical issues and a lack of acceleration. The consumer also stated, while driving with the cruise control activated, the vehicle would speed up to catch up to the designated speed and come in to close contact with the vehicle ahead. The failure is intermittent.

- Jesup, GA, USA

P1326 engine code came on while driving 60mph on the interstate. Luckily was in far left lane when engine shut off and was safely able to get off freeway to a nearby gas station.

- Jonesboro, AR, USA

E - C V V T seal seating issue. My 2016 Kia Optima is giving an obd II error code of P0010 "a" camshaft position actuator circuit. This causes reduction in power during acceleration, and elevates engine idle speeds to 1200-1400 RPM. This elevation in engine speed causes the car to try to move forward even when the brakes are pressed in stop and go traffic. In stop and go traffic, this could easily lead to vehicle crashing. This, I believe, should be a part of recall instead of a technical service bulletin from the manufacturer. Hyundai and Kia use same engine, and has a tsb number 15-01-022-1, and Kia has a tsb to change the motor plug and ecvvt cover for it. They are aware of this issue in their car, and it should be a recall. When the car was in motion for me the first time the check engine light came on, I almost hit a car in front of me as the engine does not go back down to idle speeds. This is dangerous.

- Elmhurst, NY, USA

I had the recall completed in Dec 26, 2018 March 2nd 2019 the car went into limp mode and I followed the instruction per Kia motor group to have it towed to the nearest Kia dealer I was told it was a wiring harness 'knock April 19, 2019 I picked up my car only to get it a few miles and then returned it due to the check engine light started blinking again and it went into limp mode I was told they had ordered the wrong wiring harness and would order the correct one. May 3, 2019 picked up my car and it seemed to be ok until May 14th check engine light came on and went into limp mode so returned to bob moore Kia Aug 1, 2019 picked up my car and this time they said they changed the knock sensor. My car was good until Oct 17, 2019 again check engine light came on and it went into limp mode, my care again is a bob moore Kia. I have a case with Kia motor, they have assigned me a person named melissa and she has all but told me to deal with someone to trade or report as a lemon, she asked me what I wanted and when I said to help me get this traded without being upside down since was in shop and will never get what I should for it and she said it is up to me to deal with a dealer. I also called Kia repair department 10/25/19 and was told they are putting my car on the back burner and it seems that they are not in any hurry to help me get it fixed, the only thing I can say is I do have a loaner to drive.

- Luther, OK, USA

I am starting to experience engine trouble with my 2016 Kia Optima. I purchased the vehicle new with 0 miles. My issue stated on Friday evening, September 27th when the check engine light came on. Immediately, I took the vehicle to the dealership Saturday morning, September 28th. The tech person at Kia country of savannah hook the computer device to find the issue. He stated it was due to air flow sensor. I advised him I would be traveling to port canaveral, fl in the early morning for a cruise. He said the vehicle would be fine and I would lose a mile or two on fuel economy. Wth! he disengaged the engine warning signal then says "if it come back on, you will be okay." Well, the next morning, I drove my car to orlando for an overnight stay then on to port canaveral the following Monday. Of course, I drove around orlando area. The check engine come on, again, then went off on its own. Here is where things really went downhill. I made it back to savannah during a bad thunderstorm. The car started to stutter like it was about to shut off. I managed to get the car home and parked it until Monday morning. Upon driving to the dealership, I lost all acceleration power and coast for about an half mile to the service center. By this time, I am about to explode with anger. My car has been in the shop since Monday morning, I am driving a rental car paid by the dealership. Finally, yesterday, I was told the issue was the wiring harness that was covered by a recall. I brought the car in them months ago about some knocking noises that I heard. Only to be told, I was hearing things. After reading reviews, I am concerned that issue is going to grow into a major one. The car has only 36,000 miles.

- Savannah, GA, USA

My oil is burning faster that expected. I gotand oil change and a week later it was to the bottom.

- Baton Rouge, LA, USA

Ever since I had my car serviced about 3 weeks ago my car has been sluggish and acceleration has weakened, also I'm getting poorer gas mileage. The recall that was fixed has greatly reduced the performance of my vehicle.

- Stockton, CA, USA

Check engine light is blinking, there is a noticeable decrease in power, and it jerks out of first gear. Took it to autozone for a free diagnostic which was P1326. All fluid are in order. Milage is 123,000. This happened when I was driving he fr work.

- Shiprock, NM, USA

On July 26 2019 I took my 2016 Kia Optima in the valley hi Kia for a product improvement campaign and performed a software update to the ECU. On 7/29/19 my vehicle mil light began to blink and the car went into limp mode was on the highway going 65mph. Took to the dealer where they replaced the wiring harness. On 8/2/19 picked up car. On 8/7/19 the mil light began flashing and vehicle went into limp mode. Took to dealership and was given a rental. On 8/13/19 rec'd text vehicle was done. On 8/21/19 same thing happened again each time I was driving 65 mph on the freeway. My 16 year old daughter drives my car as well. I am concerned for her safety as well as mine due to all the complaints I have read. My vehicle is still at valley hi Kia to this day 8/26/19. Today Kia texted me that they are ordering parts and now replacing the knock censor and reviewing a new campaign that just came out. Was told at least a week more.

- Apple Valley, CA, USA

Motor mounts bad at 71862 miles. Told by Kia it is not covered under warranty. Car clunks very badly and shakes. Was told it can still be driven. 2/3 motor mounts I was told were bad. Does not make sense that they could already be bad at that mileage. Do not feel safe driving car the way it is. Shakes while driving, clunks while taking off on road.

- Great Meadows, NJ, USA

The contact owned a 2016 Kia Optima LX. While driving at 25 mph, the contact had made a turn and their vehicle exploded. The contact and their wife jumped out of the vehicle as it exploded. The fire department did extinguish the fire. A police/fire report was not able to be made at the time. The contact and their wife did not sustain any injuries. There was no medical attention needed. There was no other party involved in the fire. The contact's insurance deemed the vehicle totaled. The dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was 80,000.

- Uless, TX, USA

The contact owns a 2016 Kia Optima. The contact stated that the engine made an abnormal knocking sound and the vehicle stalled. In addition, the check engine indicator illuminated. The failures occurred without warning. On four occasions, the vehicle was towed and driven to sunset Kia of venice (179 U.S. 41 bypass, venice, fl 34285) where it was diagnosed that a new wiring harness for the knock sensors was needed along with a new engine. The vehicle was repaired, but the failures recurred. The manufacturer was made aware of the failures and not assist. The failure mileage was 62,000. The VIN was unknown.

- Sarasota, FL, USA

My car stalled while waiting at a stoplight. When going to accelerate I was unable to. However, I looked at the current recalls for my car. The year, model, manufcature date meet the criteria for the axel recall. But my VIN # doesn't show any existing recalls.

- Covina, CA, USA

I bought a 2016 Kia Optima from airport Kia in 12/16. Beginning on 5/24/19, while driving my vehicle on a busy road the speed fell from 45 to 35 in less than a minute and began to jerk. I had it towed to galeana Kia (G.a.) service dept, due to previous issues with airport Kia's negligence and refusal to fix defogging issues I had on a previous 2014 Kia Optima that also had safety issues. G.a. made repairs to my vehicle for that visit. On 6/24/19, it was towed again to G.a. for the same issue. The engine light came on the miles dropped from 45 to 35 while driving and began to jerk forcefully again. Both times almost resulted in an accident. This time G.a.'s diagnostic machine didn't pull up any issues with my 2016 Optima. They opened up a case with the Kia consumer technical dept. When I called G.a. a few days later, they told me that it was suggested they change out the knock sensor. On 6/28/19, the regional analyst contacted me. I voiced my concerns of the safety of this vehicle and that airport Kia gave me another defective car that puts mine, my child's life and those around me in jeopardy. I stressed how the diagnostic machine isn't even picking up the issue of my vehicle so basically the engineers are going based on hypothetical's and can't guarantee safety of the car. Her response was that she's 100% confident this will fix the problem and to build trust in my car. On 7/9/19 the regional analyst from Kia consumer E-mailed me now changing the service to be done to my car stating that they have the engine ordered for my vehicle and the harness. When I asked for information as to what caused the change she did not provide information answering my question. G.a. was honest in letting me know that they have not been contacted at all in regards any engine or harness replacements and the last they heard from them only involved changing the knock sensor.

- Naples, FL, USA

Engine rumbles like it is about to die intermittently when I let off the brake and before I press the gas after being stopped in traffic on city streets. I often have to press the gas pedal half way down to get it to gain speed on city streets, it feels sluggish, and shifting does not feel very smooth.

- Fresno, CA, USA

My Kia Optima 2016 has an issue on 03/31/2019: Check engine blinking, lacks power(no more than 50 mph). Took it to dealer towbin Kia, they found a knock sound in engine, so they said they with no risk to repair and they would change engine. After 17 days car down in dealer, got a phone call to pick uo the car but no engine changed, instead Kia motors (kma)order change wiring harnes.car worked good for 10 days. On Saturday 04/27/2019 same issue, dropped the car 04/29/2019 to dealer, more tests and kma ordered to hook a flying record to record error codes when issue shows up. Dealer staff drove car for 300 miles with device hooked up, no issues. I was called to sign an agreement to drive the car myself with device connected. I drove car for 3 weeks and no issues. On 06/04/2019 dealer disconnects device and 06/07/2019 driving to work same issue cames back. 3rd time dropped car to dealer, on 06/14/2019 called to pick car up, kma ordered to change sensors. On 06/21/2019 same issue came back, car dropped to dealer same day. On 04/01/2019 dealer told me that kma issue a lifetime warranty on engines of Kia Optima due to defective parts. That is why dealer wanted to change engine. On 06/24/2019 dealer told me that kma is working in an updated reflash which means reprograming software to car. I can see that kma does not wants to honor lifetime warranty to change engine. I am watching an attorney toget advice for legal actions.

- Henderson, NV, USA

On March 21, 2019, I brought my car in to the Kia dealership because my own personal mechanic said that the engine was burning too much oil. Kia dealership did an oil test and said that they need to fix my engine due to a recall. It has been over 2 months and I still have not receive my car yet. Made multiple calls to the Kia dealership and Kia corporate and nothing was resolved.

- Lakewood, CA, USA

I just bought this car a month ago and have not been able to work in it as a lyft driver because there is always something wrong with it it's been in the shop more than I've drove it it makes a knocking noise and I'm not safe in the vehicle I did a history check on it and come to find out their are a bunch of recalls on it can anyone help me please?I was driving on a city street and highways.

- Corona, CA, USA