2016 KIA OPTIMA Complaints

2016 Optima with 111K miles: 7/17/19 car received ECU upgrade for the KSDS system. After upgrade, on 5/23/2020 at 90K miles, the car started to shake/knock, engine light came on, car went in to limp mode, car was taken back to the Kia dealer, code was recorded as P1326, another update was performed, and due to excessive damage bearings were replaced. Car performed ok until 9/22/21, again the car started to shake violently (bucking), loud knocking sound, engine light came on, went into limp mode, was pulled over immediately, dealership contacted, car driven directly there (3 miles). Notified at 4:30pm "there was a complete failure of the 'Fuel Injector System' and needed replacement". Was told that the "entire fuel injector system failed allowing fuel to soak and flood into the cylinder and spark plugs". This was ALARMING. Luckily, we knew to pull the car over and keep the RPMs below 1500, and only traveled a few miles. Had we been driving for a while, or the engine had been hot I do not think a rupture of the entire fuel injection system that again is located in the cylinders of the engine would have ended well. Kia Service now telling me the "Lifetime Warranty" on engine is not applicable bc a code did not get captured. The fact that my car previously captured that code speaks to the fact that the engine was faulty on production, misaligned, allowing damage to occur from mile 1 on. ECU upgrades and replaced bearings do not remove the damage that was previously sustained by the migration of metal shavings throughout the engine compartment for the 90,000 miles before it was detected and repairs were made. While the "Lifetime Warranty" speaks to engine replacement and engine repairs the original class action suit was due to engine fires, which you all (NHTSA) determined in its reporting that the exact cause of the fires in all cases was “undetermined”; noting dealers should be looking at fuel and or oil leaks within the engine. This is alarming to say the least.

Without heavy use (I don’t often have passengers in the back seat), driver side rear window regulator/motor failed in May, causing the rear window to fall into the door while driving. This is a major safety issue as anything can go through the car - rain or debris. It was roughly $600. This weekend, the same thing happened to another window out of the blue while having my dog in the back who nearly jumped out after it fell into the door. Now, the part is backordered and the Kia dealership has said it could be months before the window can be repaired and they offer no solution on how to keep the window up in the meantime. This is an expensive safety issue and should not be failing in multiple windows. My car only has 65k miles on it.

Headlights, set in AUTO, randomly will briefly go dark at night while the vehicle is in motion, putting driver at risk of night-time crash. Headlights can be re-illuminated by turning the lights off and back on. This issue has not been by dealer, service tech, or any other party. The issue occurred twice 9/15/2021, and once previously on an unknown date. There were no warning signs, dashboard lights, or any other indication of malfunction.

Here in Wisconsin Kias are being stolen at an alarming rate. It’s the most stolen car. It is being stated that this is due to how the cars were made and that Kia knew this but didn’t disclose it. My car was stolen at work, along with other coworkers. This is beyond insane. How many more cars have to be taken due to manufactures negligence for something to be done.

A straight line crack about 4 inches long appeared suddenly on my dash. Upon doing some online research, I found that the crack is directly over the dash mounted airbag. I took the vehicle to the local KIA dealer and they said it was not covered by the warranty. My concern is that the crack may impede the deployment of the airbag in a critical situation. I feel it should be investigated because there are a lot of exact same complains on the internet concerning a crack at the same location.

I'm about to replace my THIRD window accuator on this car. The first one that failed was the rear passenger side at 54000 miles. The window was rarely if ever used, failed any way. The second failed at 60,000 miles.. driver side rear. Like the first, rarely used window. Now the third has failed at 66,000 miles. Cost to replace, over $300 because a $5 sprocket fails. Windows failing is definitely a safety issue.

While driving at night with the "auto" function for the headlights on they turn off at random. This has happened numerous times during the past year. Very dangerous on dark roads. Dealer could not replicate situation to repair. No warning lights appeared.

Headlights turn off and on randomly when headlight switch is in auto mode. Dangerous in the dark when suddenly the light disappears.

My dash told me I have a headlight out. The headlight seems to come on and off from time to time. Now it says both are out. Every now and again they both come back on. It seems as though I have an electrical issue going on all of a sudden. But could be due to the engine running poorly causing disconnections In the wiring harness. The engine is shaking pretty bad and awaiting my scheduled appointment.

The engine is sputtering. Dealership can’t get my car in for two weeks due to their full schedule. They stated as long as the check engine light isn’t flashing it’s ok to drive. The motor sounds like a farm tractor.