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30 complaints
KIA K4 2025 FORWARD COLLISION AVOIDANCE: WARNINGS
high
Vehicle's forward collision warnings did not sound. Airbags did not deploy. Vehicle in front end collision at 40mph
NHTSAUSMay 2026Source →
KIA K4 2025 LANE DEPARTURE: ASSIST
high
The warnings on the car all failed and I was lead off the road while going on a roundabout. This has trigged my car to completely lose all control and even though I was attentive to my steering wheel
NHTSAUSMay 2026Source →
KIA K4 2025 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
low
To whom this may concern, I was using my cruise control on my way to work. I usually set it to 80 because police are okay with that speed on I-75. I braked before my automatic brakes hit after I got
NHTSAUSMay 2026Source →
KIA K4 2025 AIR BAGS
high
I was hit on the driver side of the car infront of the driver door side of the hood and it took out my wheel and the car is totaled with how hard the hit was made my car bounce but the air bags never
NHTSAUSApr 2026Source →
KIA K4 2025 ENGINE
low
As I entered onto i4 reaching the speed of 60 miles an hour my vehicle began to make a high pitched whining noise that got louder as I pressed on the gas pedal, noise dissipated when I let off the gas
NHTSAUSApr 2026Source →
KIA K4 2025 SERVICE BRAKES
medium
When parked and cutting the car on check driver assistance system come on, check and, and esc comes on. The parking brake does not go off and malfunction. When trying to move the car sometimes it st
NHTSAUSFeb 2026Source →
KIA K4 2025 BACK OVER PREVENTION: AUTOMATIC SYSTEM BRAKING
high
The insurance claim agent called on behalf of their insured driver, who rented a 2025 Kia K4. The contact stated that while their insured driver was attempting to reverse, the reverse sensor became in
NHTSAUSFeb 2026Source →
KIA K4 2025 POWER TRAIN
medium
Engine Failure, Engine cooling and lost power
NHTSAUSFeb 2026Source →
KIA K4 2025 AIR BAGS
low
After having my information panel replaced apx. a month later the airbag for passenger seat illuminated and has not gone off.
NHTSAUSJan 2026Source →
KIA K4 2025 ELECTRICAL SYSTEM
low
The digital instrument panel (including infotainment screen) has occasionally turned off and back on. An article showed Kia and Hyundai were going to have a recall at the end of March for this problem
NHTSAUSJan 2026Source →
KIA K4 2025 SERVICE BRAKES
high
I am reporting a serious safety defect involving the brake pedal area of my newly leased Kia K4 GT-Line. There is a metal bracket/component located directly above the brake pedal that interferes with
NHTSAUSJan 2026Source →
KIA K4 2025 FUEL/PROPULSION SYSTEM
high
Location: Intersection of [XXX] and [XXX] Lakeville, MN Date/Time: [XXX], at approximately [XXX] Vehicle: 2025 Kia K4 (911 call placed at 10:08 am) On [XXX], while traveling toward the roundabout at
NHTSAUSDec 2025Source →
KIA K4 2025 UNKNOWN OR OTHER
high
When I drive over 65 mph, I feel the car lose stability, and sometimes I feel those movements in the steering wheel. Also, it doesn't show the actual tire tread depth. In addition. And there is a burn
NHTSAUSDec 2025Source →
KIA K4 2025 LANE DEPARTURE: WARNING
medium
I am reporting ongoing safety issues with my Kia K4 LXS involving driver assistance systems and steering control. While driving in heavy rain with reduced visibility, the vehicle disabled multiple se
NHTSAUSDec 2025Source →
KIA K4 2025 ELECTRICAL SYSTEM
low
High mounted rare brake (pulse)
NHTSAUSNov 2025Source →
KIA K4 2025 STEERING
high
While driving my 2025 Kia K4, the steering system failed and became unresponsive. I was unable to steer the vehicle as intended. The exact cause of the steering failure is UNKNOWN at this time. The ve
NHTSAUSNov 2025Source →
KIA K4 2025 LANE DEPARTURE: ASSIST
low
There are times my vehicle keeps accelerating even though I’m hitting the brakes. Once stopped, it then doesn’t want to accelerate. I’ve reported to the dealership and they try to tell me it’s
NHTSAUSNov 2025Source →
KIA K4 2025 BACK OVER PREVENTION: WARNINGS
high
The 2025 Kia K4 sensors failed to go off resulting in the rear bumper to hit a barrell. The operator of the Kia K4 was reversing at 1mph
NHTSAUSOct 2025Source →
KIA K4 2025 LANE DEPARTURE: WARNING
low
While driving on the freeway in the left lane on a two-lane highway, the lane departure and steer ahead feature incorrectly adjusted steering and pulled vehicle into the right lane. Is incorrect adjus
NHTSAUSSept 2025Source →
KIA K4 2025 UNKNOWN OR OTHER
low
KIA K4 WITH 500 MILES ON IT. EXPERIENCED POPPING NOISE FROM THE WINDSHIELD AS IF A STONE HIT THE WINDSHIELD WHEN CAR WAS NOT IN MOTION. SEEMS TO HAPPEN WHEN THE AC IS ON AND THE SUN IS HITTING THE WIN
NHTSAUSSept 2025Source →