Driving along the interstate approximately 70 mph, the vehicle jerked with knock sound then lost acceleration speed. At the same time, the check engine light started blinking. I pulled over to the side of the interstate put the car in park. I put it back in drive and slowly attempted to accelerate again. I was able to make it home because I was only about a mile and a half away, but I the acceleration was very slow and there wasn't much power behind it. At a speed of about 45-50, the vehicle barely seemed to have much power.
2016 Kia Optima acceleration complaints
Page 2 of 2: complaints 11 to 29 of 29, newest first, as owners wrote them.
Pulled into neighborhood, put foot on pedal to accelerate, and car took off. Would not stop. Went b/w 80-100 MPH on it's own, before my mother drove off an embankment, and flipped her car end over end. Nearly killing her, as well as her dog. Currently hospitalized.*dt*dt*dt*dt
Was exiting the freeway, came to a stoplight, and as continuing with driving the check engine light starts blinking and was not able to accelerate, as if it was slipping. Car would not go over around 30 MPH until feeling the car not able to accelerate again. I used a code reader and got code p1326, which I had looked up and says it has something to do with a knock sensor detection system. Had bring my car in to get it checked out and was told my car had low oil, about 2 quartz. I do regular oil changes though and had done an oil change a few weeks prior. The shop I went to told me there may be a service campaign for the car. Was told specific years have had engine problems with oil, losing oil although no leaks or signs.
Mid september, 2020, I began to notice that my headlights would turn off as I was driving. They would cut off for no more than 15 seconds and turn back on. I didn't think anything of it, until I started having issues with other components of my 2016 kia optima. On 11/30/2020 I was driving at 30mph through a residential area. As I was approaching a stop sign, my engine light came on. When I tried to accelerate, the car began to jump and hesitate. No matter how far down I pushed the gas, the care was jumping/shaking and wold not accelerate over 20mph. I pulled into an autozone where they ran a diagnostic test on the vehicle. Error code p1326 (knock sensor) came up. The next morning, I called coastal kia of wilmington in north carolina and explained to them what had happened. They sent an employee to pick up my vehicle (12/01/2020). They inspected my vehicle and informed me that the protocol was to perform a bearing clearance test and ecu upgrade. I picked up my car on 12/02/2020. A week later, I called the dealership again and informed them that although my engine light had not come back on, the acceleration issue was still occurring. I asked if they would look at the car again, to which they said no, that they cannot take a further look at it until the engine light came back on. On 12/20/2020 I was driving 40mph when my car began to stutter uncontrollably. The following morning I called kia again to inform them what had happened, and they agreed to take a look at it. On 12/22/2020 they called me and said that my car was burning oil and smoking excessively. They opened a tech case with kia and informed me that they could not do anything to the car until they heard back from them. On 12/23/2020 they called me again to tell me that the issue was not covered under a recall, and that my next step would be to replace my engine.
Vehicle was in motion, driving straight in left lane on a city street in eastbound direction. On its own, the car started to accelerate while turning towards the left simultaneously. Driver was driving about 40 MPH and based on air bag module, car sped up to 55 MPH. The steering wheel and the brake seemed to be locked or stuck because neither component worked while this malfunction occurred. Driver tried to press the brake to slow the car down, but brake would not press down. Also tried to turn steering wheel to avoid oncoming westbound traffic, but steering wheel did not work either. Driver had absolutely no control of vehicle. The car accelerated and veered left for about a quarter of a mile until it finally hit a curb, then front passenger side wheel, rotor, and suspension broke. It seemed as if car was still trying to accelerate after it hit the curb because there are skid marks from the tires after impact. When the car stopped, the steering wheel and the brake pedal were no longer stuck. The steering wheel rotated properly and brake pedal pressed down with ease. Because of broken wheel, car was not operable afterward and was towed to collision center. Complaint was filed with kia consumer affairs and inspection completed, but they said they did not find any errors with the car electrical system or any other errors. The air bag module report coincides with the malfunction claim that I filed with kia on the day of the incident, but kia stated there weren't any error codes in the report. After repairs and inspection were completed, I traded-in the vehicle out of fear that this malfunction may happen again. Since an issue wasn't found with the car, that means the issue wasn't fixed and I didn't want to own a malfunctioning vehicle.
The driver door lock does not work. It is the only door that will not lock sometimes. Other times it is the only door that will not unlock. The cruise control does not always want to work. It will say cruise but will not let me set it.
While driving the car the fuel consumption in the motor would bog the engine down to where it would barely go over 40 MPH on the highway. At this time the engine trouble indicator light would come on and not go off. I immediately took it to the local kia dealership in mt. Hope, wv.. The mechanic changed out the sensor that showed up on his meter and the engine seemed to do good while in the shop but when they backed it out of the shop bay, another sensor lighr came on. We had already paid the dealership $206, they would not return our money
Letter from congressman earl l buddy carter on behalf of constituent, regarding issues with a kia purchased in savannah, georgia. *ld 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.
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.
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.
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.
Intermittently car will shudder (jerk forward and slow, jerk forward and slow) many times when accelerating, either from a stop or while accelerating from low speeds (less than 45mph) it seems possible gear changing is not smooth. And can be dangerous when attempting to merge into traffic as car does not accelerate as it should. Have taken the car to kia who report that nothing was wrong with car when they test drove it. Problem seems worse when it is hot or cold outside.
The car stumbles to start and when I accelerate it flutters until picking up speed. This happened on highway 43.
2016 kia optima. Consumer writes with concerns malfunctions with advanced smart cruise control. *as
When the car encounters a hill and needs to downshift, either to climb or to hold back the speed when it descends, the cruise control remembers the downshift and will not return to high gear until a) it is manually overridden, but will still downshift up to 2 gears, when the lever is placed back to automatic or, b) when the cruise control is turned off. The cruise control also belatedly reacts to loss of speed control and overcorrects with too much power, resulting in a crude ride, as well. The workload is increased dealing with getting the car to attain top gear on flat roads, and is creating unsafe conditions, in my opinion. I have attempted to get this attended to at the dealership, and they continue to not fix the issue, as well as inform me I shouldn't be using cruise control on hills. My 2014 kia optima did not exhibit these issues, nor any other of my cars which had cruise control. There is a problem and these people will not fix it. The consumer stated the heat does enter the foot well area.
I have been experiencing issues with my 2016 kia optima since I purchased it on september, 5th 2016. A short time after owning my new vehicle, first the car started to hesitate when starting as if it was struggling to start, the push button would turn red and the indicator lights would light up on the dashboard as if the key was not recognized in the car. The car would also self accelerate. On or around august 16th or 17th the car stalled out while it was being driven,we attempted to restart the car and it turned on like normal so the tow was canceled. , the service writer & kia all have copies of the videos the mechanic has also told me he was able to duplicate the issue, the solution was to change the fuel pump and service the fuel delivery system. Upon the services being completed we were contacted by the service manager, and kia that the car was ready to be picked up on september 6th 2017. While driving the vehicle home we noticed some hesitation while idle, also some strong acceleration when taking off from red-light or stop sign. While parked we noticed some strong vibration from the motor which the car had not had previously before service. Also after several attempts of starting the car, the car would either start rough, and also still had the same original occurrence as before with the key not being recognized in the car. With the car not fully starting and the push button turning red with the instrument panel lighting up with the key not in car light along with some others. On thursday september 7th, 2017 at about 4:30pm I had the cruise control set to 80 MPH, the car hesitated a couple times, then self decelerated to 73 MPH, reaccelerated to 82 MPH then self adjusted to 80 MPH, I contacted the dealership right after the occurrence I was told I had to wait to bring the car back in they had no loaner vehicles, not to use the cruise control feature.
Since I had the car in aug2016 brand new when I give it gas the valves ping and peak extremely bad not matter what fuel I use also the AC keeps loosing power it will blow fine then it almost goes off while still driving the same speed. Also sometimes when this happens I have a miss or hesitation in the engine. There has also been a pop noise in the back end when I stop or slow down since I have had the vehicle. I have taken my car 6 times to the local dealer in chas wv where I purchased the car and they keep saying they can't dignose the problem they have to contact kia and never have an answer wheh I take the car back or contact them.
Tl* the contact owns a 2016 kia optima. The contact stated that the vehicle had a few seconds delay in acceleration. The contact took the vehicle to a dealer where it was diagnosed that there was a sensor delay. The manufacturer was not notified of the issue. The failure mileage was 200.
Tl* the contact owns a 2016 kia optima. While driving various speeds, the vehicle accelerated independently and the engine rpms drastically increased to 6 or 7. The contact also stated that the check engine warning indicator illuminated and there was a burning odor coming from the engine. In addition, the vehicle was leaking oil. The vehicle was taken to the dealer where it was diagnosed that the CVT valve needed to be replaced. The dealer stated that the vehicle was number 75 on the waiting list for the repairs and provided a loaner vehicle. Two days later, the contact was informed by the dealer that they performed an interim repair and that the vehicle could be driven. The dealer ordered the part for a permanent repair. The contact felt unsafe driving the vehicle. The manufacturer was not notified of the failure. The failure mileage was 1,000.
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