Bought this car 10 months ago with 16000 miles on it my enjine light is on car wouldnt start its 2017 kia optima also my passenger seatbelt sign on my dash keeps going off and nobody is in the seat so i have to fasten the seat belt just so it will stop dinging while i drive my front passenger side brakes sound like they are scrubbing when u stop i had mechanic look at it he said he dont see nothing he resurfaced my rotors and its still making that noise

- National City, CA, USA

The contact owns a 2017 Kia Optima. The contact stated while driving 50 MPH, while slowing down the brake pedal was depressed and would engage however, after several seconds the brake would disengage and the vehicle would roll forward. The contact was able to safely stop and noticed a knocking sound coming from the rear area in the trunk as the vehicle came to a stop. The contact stated no warning light was illuminated. The contact took the vehicle to an independent mechanic, where it was diagnosed however, the mechanic found no failure. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 83,000.

- Glendale, AZ, USA

When driving above 30 mph if you apply light brake pressure to the brake pedal and then allow the vehicle to slow down without applying additional force the ABS will activate when the speed drops to around 20 miles per hour. At that point if you release the brake and reapply them they will operate without issue. If on the other hand you hold the force or apply more force the ABS activation continues the brake pedal gets hard and it feels lie the vehicle is not going to stop. As an employee of Kia America I cannot provide any documentation. That said you should have full access to all the details via the TREAD ACT and I would encourage you to investigate it. Please also note I was able to duplicate this issue in 3 other like vehicles and feel this issue could hurt or kill someone.

- Temple, TX, USA

Within a week both front and rear passenger wheel speed sensors failed. Resulting in a prompt on dash at start up and consistently displayed for aeb system service after vehicles automatic system scan an see difference in mileage in attached pictures. Kia technician said it is a common issue and sees atleast 4-5 vehicles per week with this part failure.

- Midland City, AL, USA

The contact and his daughter leased a 2017 Kia Optima hybrid. The contact stated that while driving at various speeds, the parking brake would active independently as the parking brake warning light would simultaneously appear on the instrument panel. The contact stated that while his daughter was driving at 55 mph, the parking brake had activated independently as the check hybrid warning message appeared on the instrument panel. Due to the parking brake activation, she lost control of the vehicle as the rear tires began to lock. The vehicle began to skid sideways and the contact also lost control of the power steering.the brake pedal was depressed but the vehicle continued to accelerate.as a result, the vehicle hit a guard rail which caused the vehicle to flip approximately six times and ultimately landed in a wooded area. The front air bags did not deploy upon impact. The contact's daughter was initially trapped in the vehicle, once she was removed by paramedics, she was treated at the scene for minor bruises and burns in an ambulance. She did not seek further medical assistance after the accident. A police report was filed. The vehicle was totaled as a result of the accident and was towed to an independent tow yard. The manufacturer was notified of the failure and was given a case number. The failure mileage was 23,000.

- Rindge, NH, USA

My vehicle has had multiple issues with its hybrid battery management system since purchase. It has been towed 4 times. While driving my car will start to jerk and a warning system telling me there is a problem with the battery management system (bms) and the power train. It will tell me to pull over or to contact the service department. This car has had its battery replaced and software upgraded numerous times, but I keep having the same issue. I'm concerned the battery system is faulty and it's dangerous to drive at this point, as nothing preceeds the issues - they happen out of nowhere.

- Clinton, MD, USA