The contact owns a 2015 Kia Optima. The contact stated while driving approximately 65 MPH, the check engine warning light illuminated. The contact stated that the vehicle started to lose motive power. The contact pulled off the roadway and heard an abnormal grinding sound coming from underneath the vehicle. The contact turned off the vehicle and the vehicle was unable to be restarted. The contact had the vehicle towed to a local dealer who diagnosed the vehicle and determined that the engine needed to be replaced. The contact was advised that the following DTC were retrieved: P0076; P0079; B2519; B2521. The vehicle was not repaired. The manufacturer was informed of the failure and informed the contact that there was no recall on the VIN for the engine. The failure mileage was approximately 140,000.
2015 Kia Optima: grinding or squealing brakes
8 of the 1,011 complaints about the 2015 Kia Optima describe grinding or squealing brakes.
- owner complaints
- 8
- of this car's complaints
- 1%
- typical mileage
- 77,539
- recalls
- 3
Grinding or squealing brakes by model year
What owners say
When I reverse my car out of my parking spot it stops like my brakes locks. I have to press the gas a little for it to go. Also my brakes or wheel is making a grinding noise on the passenger side but my brakes looks good
My kia started out making a strange squealing noise, then it started loosing power. When I stop at a light or stop sign I push the gas peddle and it takes awhile to get up to even 35 MPH. I was told the turbo manifold was bad so I had one put on. The next day it started making a cha cha cha noise. I took it back and had to get another turbo, once again same thing. Kia dealers said turbo again. So I'm out labor and turbo cost once again. I have to work I need my car, I need it fixed now. I love the car but I am so sick of stressing over expenses, and loosing my job not able to get there. I just want it fixed correctly, or money to get a dependable vehicle. I've never had problems with my gmc,chevy and pontiac vehicles. I do love my kia but I will go back to the most reliable car. No power is dangerous when you need to take off but the car bogs down. So I you will I really need to find a mechanic that can tell me what exactly is wrong and fix it. Five mechanics apparently don't know either. I don't need my car to catch on fire. So please tell me some good news that I will have a dependable car soon.
At about 1500 miles on the car, I have 2200 now, I started to notice a grinding and a rough contact in the brake pedal. When researching this it appears kia has had aot of issues with the brakes on the stinger since introduction. Will be taking to dealership soon but per the research, kia does not have fix other than replacing repeatedly.
Oil light began to flicker, right before the engine began making horrible grinding noises. Engine blew shortly after. Vehicle was up to date on normal scheduled maintenance.
I have a 2015 kia optima with 55k miles on it. Without warning driving to work I slowed down to enter the gate and heard my brakes grind metal on metal. I thought I would hear a squeal when my brake pads started wearing out way before I heard metal on metal. I immediately took my car to a mechanic and he told me that my squeal bars on each brake were bent back to where they did not come in contact with the brake pad. He stated that sometimes a stick or something could get up in the wheel and possibly bend one a little bit but seems unlikely that it would happen on both front brakes. It seems obvious that my car came from the factory that way but I have no proof. Even if I was hard on my brakes and the pads were worn I should have heard the squeal as a warning to replace the pads before I had to replace both of the original front pads and rotors on the same day.
Sounds like pieces of metal was left in the engine during the time of manufacturing and was never taken out ,the vehicle was still running, I decided to take it to get checked , the device at kia of essington of philadelphia said it was a grinding sound on the bottom end of the engine
While driving on the road, the engine started making noise and all of a sudden it stopped. Tried restarting it but it would shut down again with a clunking sound like metal to metal grinding. Had to push the car off the road. Checked the oil and it was at the right level as I had recently changed the oil a few weeks ago. I tried restarting it a couple more times but it just shuts down and the engine really sounded bad with a screeching sound. I had it towed home and currently sitting in my garage for a month now since I don't have any funds to get it fix.
Service bulletins that may apply
Related recalls
Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/module
- What is wrong
- Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.
- Risk
- An engine compartment fire while parked or driving can increase the risk of injury.
- Remedy
- Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1‑800‑333‑4542. Kia's number for this recall is SC284.
Recall number 23V652000 · Recall details
Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/module
- What is wrong
- Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles previously recalled under recall 20V‑519. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
- Risk
- An electrical short in the HECU increases the risk of a fire while parked or driving.
- Remedy
- Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. Dealers will install a new multi-fuse, and inspect the HECU for leaks, replacing the HECU if necessary, free of charge. Owner notification letters were mailed on July 2, 2021. This recall supersedes previous the federal safety agency recall number 20V‑519. Owners may contact Kia customer service at 1‑800‑333‑4542. Kia's number for this recall is SC212.
Recall number 21V331000 · Recall details
Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/module
- What is wrong
- Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
- Risk
- If the HECU short circuits, there is an increased risk of an engine compartment fire.
- Remedy
- Kia will notify owners, and dealers will inspect the HECU for leaking brake fluid and replace the HECU if necessary, free of charge. Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. The recall began October 20, 2020. Owners may contact Kia customer service at 1‑800‑333‑4542. Kia's number for this recall is SC197.
Recall number 20V519000 · Recall details
Questions about the 2015 Kia Optima grinding brakes
Is grinding or squealing brakes a common problem on the 2015 Kia Optima?
8 of 1,011 owner complaints about the 2015 Kia Optima (1%) mention grinding or squealing brakes. The model year with the most reports is 2013.
Is there a recall or service bulletin for this on the 2015 Kia Optima?
There are 3 recalls and 1 service bulletin for the same area of the car. Check them below with your VIN.
Other symptoms on the 2015 Kia Optima
Engine failure 244Knocking 149Check engine light 140Stalling 140Fire or smoke 97Loss of power 59Won't start 42Oil consumption 39Jerking 25Warning lights 22Won't shift 19Headlights 17ABS 15Hesitation 13Power steering loss 12Airbag light 10Fuel smell 10No deployment 9Brake failure 9Sunroof shattered 9Overheating 8Steering lock-up 7Fuel pump 6Backup camera 5Power windows 5Shudder 5Pulling 5Wipers 5
VIN decoder
See the problems and recalls for an exact car
Buying a used 2015 Kia Optima?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history