2021 Kia Seltos Problems

The contact owns a 2021 Kia Seltos. The contact stated that while driving at 45 mph the engine experienced a complete loss of automotive power, and no warning lights were illuminated. The vehicle was towed to a local dealer where it was diagnosed and the contact was advised that the engine was faulty and needed to be replaced. The contact associated the failure with NHTSA Campaign Number : 25V099000 (ENGINE AND ENGINE COOLING). The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,000.

The contact owns a 2021 Kia Seltos. The contact stated that on March 13, 2026, the vehicle was serviced under NHTSA Campaign Number: 21V259000 (Engine); however; the spark plugs were not replaced when the vehicle was repaired. The vehicle was taken to the dealer, where it was diagnosed with a misfire in the engine associated with the spark plug. The dealer stated that the failure was not associated with the recall. The contact stated that the failure was caused by the dealer not installing new spark plugs during the recall repair. The manufacturer was made aware of the failure and stated that the recall repair was performed and was out of warranty. The failure mileage was approximately 92,000.

While driving normally at approximately 55 mph on the highway, the vehicle suffered a sudden, catastrophic, and spontaneous structural failure of the rear driver-side suspension and drivetrain. Without striking any road debris, potholes, or other vehicles, the entire driver-side rear wheel, wheel assembly, and structural axle components completely fractured and ejected from the moving vehicle. An eyewitness at the scene explicitly confirmed the nature of the failure, stating on video that they observed the 'entire rear axle just come right out' while the vehicle was in motion. The vehicle sustained extreme structural damage, completely disabling it on a high-speed highway and creating an immediate, life-threatening situation. The vehicle is a low-mileage Certified Pre-Owned (CPO) unit with under 24,000 total miles on the odometer, indicating a severe manufacturing, material, or component fatigue defect rather than wear-and-tear. There were no warning lights or symptoms prior to the failure. The vehicle is currently being held at a recovery yard and is fully available for inspection upon request. A formal defect investigation has been initiated with the manufacturer, and the insurance provider is inspecting the sheared axle and metal components for structural forensic analysis

My 2021 Kia Seltos 1.6L Turbo GDI is experiencing a severe safety hazard involving catastrophic internal engine failure. The vehicle aggressively consumes its oil supply, running critically low within 1 to 2 weeks. On July 6, 2026, a certified Kia dealership pressure-tested the engine and formally documented "NO EXTERNAL LEAKS," while confirming the spark plugs are entirely "OIL COATED" due to severe internal burning. The dealership noted on the invoice that the vehicle was "9,000 miles due" for service. I must explicitly clarify that this mileage gap occurred because the engine burns through its oil so rapidly that standard interval changes became meaningless; I was forced to continuously top off the engine manually out-of-pocket with store-bought oil just to keep it from running dry and seizing while driving. Otherwise, all other oil changes were consistently done at Kia dealerships, and this excellent service history was even explicitly acknowledged and noted by a Kia Consumer Care representative on a recorded line. Furthermore, the engine builds extreme crankcase blow-by pressure that actively forces oil vapor out of the oil filler cap. This defect creates an immediate risk of sudden engine seizure, highway stalling, or an engine bay fire. Kia Corporate Consumer Affairs has refused to authorize safety repairs or diagnostic testing under TSB ENG222, issuing a blanket denial while ignoring an imminent safety failure diagnosed by their own technician.

Car cutoff. Started back up to get off interstate. Saw smoke under hood and got it. Within 5 min sparks under the frame and then 10-15 min later flames

My Kia has been stalling, shaking, and just driving extremely badly for the past year. This day, I was driving on 55, and the car just stopped and stalled in the middle of highway near Berwyn, IL. This was extremely dangerous and could have honestly been life threatening. I pulled over, turned the car off and on, and was safely able to drive it to Berwyn Kia. Unfortunately, this was not the only time that this has occurred and I’m assuming will not be the last. In addition, I was charged $500+ to replace piston rings that were recalled on other models that were not recalled on my model, even though the same year was recalled.

After getting recall work done last year regarding SC336 my sensor went off and now my car needs a new engine due to defective heat-treated Piston oil rings causing Catastrophic failure. Kia is declining responsibly because of lack of enough oil changes. They have not proved this failure was from neglect.

While in the middle of driving on the highway, the vehicle has powered off then back on. The vehicle “slips” when revving up.

The contact owns a 2021 Kia Seltos. The contact stated that while the vehicle was at a complete stop with the brake pedal depressed, the vehicle unintendedly accelerated and crashed into a tree, where the vehicle came to a stop. The contact stated that the brake pedal remained depressed during the failure. While being placed on the tow truck, the vehicle violently jerked. The contact stated that while the vehicle was at the collision center for repair, the vehicle unintendedly accelerated while being moved. The contact stated that the brake pedal was depressed during the failure, with both feet on the brake pedal; however, the vehicle continued driving. The failure had occurred a second time while stopped at a red traffic light with the brake pedal depressed, and the vehicle had unintendedly accelerated. The vehicle was towed to a collision center. No warning lights were illuminated during the failure; however, the engine was revving unexpectedly. A Police report was filed during the crash. The vehicle was deemed unsafe to drive but the insurance company towed the vehicle to a Kia dealer where the vehicle was diagnosed with transmission failure. During the crash, the contact sustained injuries to the abdomen, left knee, and left thigh, with severe pain in the lower back. Several days following the crash, the contact had pain in the chest. The contact received physical therapy for the injuries. The contact previously suffered from PTSD. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 55,000.

Shuddered into limp mode at a stop sign. Has a sever shudder that throws it into limp mode, loses ability to drive in reverse and then loses ability to drive at all. Has issues shifting gears while driving causing the engine to rev itself while driving. Vehicle has left me stranded on multiple occasions. Has nearly 75,000 miles and I've put just over 4,000 of those on it since acquiring it at the end of October/Beginning of November.

The vehicle in question has been experiencing multiple ongoing mechanical issues, including engine stalling, frequent brake replacements, frequent oil changes, a camshaft issue, and intermittent horn functionality. These issues have raised serious safety concerns. Despite multiple repairs and maintenance attempts at the dealership, the problems persist, affecting both my safety and confidence in the vehicle. I have incurred substantial costs for repairs and rental cars while trying to address the issues. However, the problems remain unresolved, and I am not receiving adequate support. I contacted the corporate office for assistance, but the representative dismissed my concerns and stated I would need to provide maintenance receipts, even though the dealership had already confirmed they were unnecessary. This response was unhelpful and failed to address my safety concerns. Additionally, the service manager at the dealership has not offered satisfactory solutions or alternatives to resolve the ongoing issues. As a result, I am no longer comfortable continuing with the vehicle. Due to my financial situation and outstanding loan balance, I am requesting a goodwill replacement vehicle or a reasonable alternative that will allow me to maintain my current car payment without a substantial down payment or negatively impacting my credit. A replacement vehicle, ideally of the same make and model or comparable, would help me meet my financial obligations while addressing the unresolved safety and reliability concerns.

I’m not really sure what the problem was. I feel like the car may have lost power and I lost function of the car / brakes. I’m assuming it’s either an engine or electrical. Warning lights came on. Prior to losing function, the vehicle felt like it was sorta puttering. I’d give it the gas and there was a delayed, and then jerk forward. There’s a vibration sound that happens when I go around 15-30 miles an hour. Not sure if it’s related. It’s being looked at on June 24. I had to turn off the car and restart to gain control.

The Kia was traveling approximately 45 - 50 mph and struck another vehicle that had pulled out from a stop sign. I had my hand on the horn and the airbags did not deploy on impact.

I was traveling at approximately 50mph straight through an intersection. The opposing car made a left turn directly in front of me and I T-boned the other vehicle (gray Kia Optima). There was sufficient front end damage that my car was totaled. The airbags on my vehicle failed to deploy.

You are driving with all windows up in Florida with the temperature outside from 70's to 90's Degrees with AC on cold and running and suddenly car displays the temperature outside -39 Degrees and the car starts blowing very hot air that fogs all windows within seconds and daughter is unable to see. Car has been taken to Kia of Leesburg, FL more than 5 times. Dealer has changed the temperature sensor and checked the wiring, but the vehicle is still doing the same. Daughter almost had 3 major accidents because of this with 3 year old in the car. Need NHTSA to investigate this and push KIA of America for resolution. Has happened multiple times and we have it on video.

The contact owns a 2021 Kia Seltos. The contact stated while driving 60 mph, the sunroof shuttered without impact. The contact called the local dealer and made them aware of the failure. The vehicle was not repaired. The contact took the vehicle to an independent mechanic and made them aware of the failure. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was 51,268.

There is a defect in the passenger seat belt buckles, its extremely hard to get it to fasten and it doesn't properly lock, you have to consistently put the buckle in to get it to lock and sometimes it may just unbuckle without touching it.

My 2021 Kia Seltos S was not a part of the original recall on Seltos & Soul vehicles. My check engine light came on and now my car has been at the dealership for 3 weeks waiting for a new engine. The front collision will randomly activate when there are NO other cars around. It applies the brakes when you are driving at speed on the highway. Luckily no cars were behind me. My seat belt has also malfunctioned. I connect it and the warning light keeps beeping & flashing even after I try repeating the process. This KIA is a keyed Kia. And although Kia has recently created an Anti-theft software update, that comes about 14 months too late. My car was stolen in Jan 2022. This morning I hear that Kia is having exploding air bag issues. Don't know which models are affected yet, but it would not surprise me if my car is included. I do not feel safe driving this car with all of the safety issues I have.

This has happened 3 other times. It just stalls out when stopped. Not to do its SMART thing but it clunks-like and turns completely off. Its a bit scarey. And now heat issues just like the last 2 summers. It has issues!

My car has stop many times in highway running 55mph or 30 mph. It will completely stop my car has almost 15000 miles a 2021 kia seltos. I turned in my car to the kia dealershop to get check and they diagnosed a lot for so many things and have me pay to replaced the car’s battery. I had my 3year olf child when that happened The dealer just pushed it that it was the battery but its not. My car has only 15000 miles. they also ordered a pad crash main even whwn there was no accident happened. It is a critical safety of my component. For a very low milage car that has so many problem i think this is not good. The engine will stop when i pressed the brake and automatically refresed all warnings will show mainly engine light. it wont turn on when i pressed the button. It happen many times

While driving normally at approximately 55 mph on the highway, the vehicle suffered a sudden, catastrophic, and spontaneous structural failure of the rear driver-side suspension and drivetrain. Without striking any road debris, potholes, or other vehicles, the entire driver-side rear wheel, wheel assembly, and structural axle components completely fractured and ejected from the moving vehicle. An eyewitness at the scene explicitly confirmed the nature of the failure, stating on video that they observed the 'entire rear axle just come right out' while the vehicle was in motion. The vehicle sustained extreme structural damage, completely disabling it on a high-speed highway and creating an immediate, life-threatening situation. The vehicle is a low-mileage Certified Pre-Owned (CPO) unit with under 24,000 total miles on the odometer, indicating a severe manufacturing, material, or component fatigue defect rather than wear-and-tear. There were no warning lights or symptoms prior to the failure. The vehicle is currently being held at a recovery yard and is fully available for inspection upon request. A formal defect investigation has been initiated with the manufacturer, and the insurance provider is inspecting the sheared axle and metal components for structural forensic analysis

The car constantly thumps or bangs. Since 15,000 miles. I have had Kia dealer investigate but nothing. The suspension is horrible.

THE DRIVER SIDE MIRROR IS DISTORTED. I DROVE IT HOME FROM THE DEALERSHIP AFTER HAVING THE DEALER REPLACE THE MIRROR BEFORE WE LEFT THE LOT (WE NOTICED IT WHEN BEFORE DROVE OFF THE LOT) THEN JUST DROVE AND IT WAS STILL WARPED. I WAS SCARED TO SWITCH LANES. THE DISTORTION HAPPENS WHEN THE CAR IS BOTH STATIONARY AND IN MOTION, ON HIGHWAY AND ON THE STREETS.

THERE IS A CONSTANT RATTLING NOISE COMING FROM THE REAR AREA. IT SOUNDS AT BOTHS LOW AND HIGH SPEED. NOT SURE IF IS FROM THE SUSPENSION OR SOMETHING INSIDE THE TRUNK AREA. MY VEHICLE HAS LESS THAN 600 MILES.

While driving normally at approximately 55 mph on the highway, the vehicle suffered a sudden, catastrophic, and spontaneous structural failure of the rear driver-side suspension and drivetrain. Without striking any road debris, potholes, or other vehicles, the entire driver-side rear wheel, wheel assembly, and structural axle components completely fractured and ejected from the moving vehicle. An eyewitness at the scene explicitly confirmed the nature of the failure, stating on video that they observed the 'entire rear axle just come right out' while the vehicle was in motion. The vehicle sustained extreme structural damage, completely disabling it on a high-speed highway and creating an immediate, life-threatening situation. The vehicle is a low-mileage Certified Pre-Owned (CPO) unit with under 24,000 total miles on the odometer, indicating a severe manufacturing, material, or component fatigue defect rather than wear-and-tear. There were no warning lights or symptoms prior to the failure. The vehicle is currently being held at a recovery yard and is fully available for inspection upon request. A formal defect investigation has been initiated with the manufacturer, and the insurance provider is inspecting the sheared axle and metal components for structural forensic analysis

ON 11/26/22 I was driving down the road my Kia Seltos showed error messages on the dashboard saying ERROR and then Power Train off, the car then shut off at 55 mph and smoke filled my cabin, I got the car pulled over and called the fire department, there was no flames just smoke and smelled like electrical. It was then after 2 weeks taken to a dealership where they inspected the car and stated the fire was in the engine and the engine needs to be replaced. After doing research on this car and the issue there were at least 4 other complaints filed with KIA AMERICA about this issue

WINDOW STICKER INDICATES DAYTIME RUNNING LIGHTS ON LX MODEL. MANUAL SAYS TO HAVE LIGHT SWITCH IN AUTO POSITION. WHEN MEETING THE REQUIREMENTS OUTLINED IN THE FEATURES AND OWNERS MANUAL THE DRL'S NEVER ILLUMINATE. TOWBIN KIA RESPONDED THAT THE VEHICLE IS OPERATING AS DESIGNED AND I SHOULD MOVE THE SWITCH ONE POSITION UP TO THE PARKING LIGHT POSITION IF I WANT TO USE DRL. THIS IS CONTRARY TO WHAT THE MANUAL STATES.

Driving on a busy 4 lane highway where everyone was going over 70mph. Car began to shudder in the transmission and lost most of its power. Rpms went up to 3 or 4 thousand when stepping on gas to pull out out fast traffic and wouldn't go above 35 mph. Had to slowly pull out of traffic with hazards on at 30mph with cars flying by in both sides. Finally got to breakdown lane after a mile and tried to use sport shift mode to try other gears. Car wouldn't go above 30 mph and rpms went up to 4000. Luckily there was a rest area 500 feet off the highway. Pulled in there to look at transmission oil dipstick but couldn't find it. Spent over 2 hours trying to get Kia roadside assistance towed to a LOCAL Kia dealer but none had loaners to give so had to use my AAA to tow it to my dealer where I bought it. Hopefully I will get reimbursed for the tow I had to pay for. Still waiting for my service department to fix it. They tried to drive it and confirmed the transmission is gone. The car ONLY has 6500 MILES ON IT!!!!!! No warning light came on to know problems were present. Very dangerous.... Kia needs to have a transmission oil cooler or a warning light installed so this can't happen again!!!!