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2025-2026 · 2 model years

Kia K4 Problems by year

Owners have filed 66 complaints about the Kia K4 across 2 model years, and it has 3 recalls. The 2025 has the most complaints once its age is allowed for (53). The most reported problem area is the driver assistance, followed by the electrical system.

Most complaints for its age202553 complaints · 2 recallsSee the 2025
Complaints
66
Recalls
3
Crashes
17
Fires
1
Injuries
9
Deaths
0

K4 complaints by model year

Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.

YearComplaintsRecallsCrashesFiresTop problemGrade
202613160Driver assistance-
2025532111Driver assistance-

Most common K4 problems

Kia K4 recalls 3

Latest K4 complaints

2025 Kia K4Visibility & wipers

2025 Kia K4 Dashboard visibility danger. Over reflective dash produces blinding windshield view to driver as regards on-coming traffic, curves, dangerous intersections.

Filed Incident Visibility / wiperNHTSA 11777086
2025 Kia K4Transmission & drivetrain

When driving it felt like the car wants to die out and then they felt like a rubber band goes high. RPMs then shuts all the way down to low and then it stutters at around 48 mph. Can't hold a steady speed without feeling jerky and most definitely doesn't match speed with rpm's

Filed Incident Power trainNHTSA 11776922
2025 Kia K4Electrical systemFire

Vehicle sat for 6+ hours and caught fire on its own. When the firefighters showed up, they asked if I had been in a wreck, there had been no wrecks on this vehicle in the less than 23K miles it had on it. Something according to their thermal guns got caught behind the drivers side screen panel and got hot. This caused the entire front dash to melt and something to projectile outwards through the bottom left hand corner of the front windshield. Luckily, this car was out in the open, their emergency sensor went off...

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causing the car horn to go off nonstop, alerting me of the issue, otherwise I would have never known it was happening. But, had this had happened in someone's garage when they weren't home, it could have burned someones entire home down.

Filed Incident Electrical systemNHTSA 11776741
2025 Kia K4Other & unknown

My tire pressure sensor keeps alerting on the dashboard even after filling the tire with air. And it won't go away.

Filed Incident Unknown or otherNHTSA 11776482
2025 Kia K4Electrical systemEngine & coolingFuel system

Vehicle Safety Complaint - 2025 Kia K4 Unexpected Engine Shutdown I own a 2025 Kia K4 purchased new in August 2025. I am reporting a serious and recurring safety concern involving unexpected engine shutdown while the vehicle is being operated. The vehicle has experienced intermittent engine shutdowns, including while traveling at highway speeds. During these incidents, the vehicle switches into Accessory Mode, resulting in an unexpected loss of engine power while in motion. This issue first began before the...

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vehicle reached 24,000 miles. The vehicle currently has approximately 58,000 miles. I previously brought the vehicle to an authorized Kia dealership for diagnostic evaluation. However, the dealership was unable to reproduce the problem or identify its cause. The underlying safety concern remains unresolved. I am particularly concerned because an unexpected engine shutdown at highway speeds creates a significant risk of a collision and endangers the occupants of the vehicle and surrounding motorists. I have also become aware of other owner-reported incidents involving 2025 Kia K4 vehicles experiencing unexpected shutdowns and switching into Accessory Mode while driving. I am requesting that NHTSA document this complaint and evaluate whether this recurring condition represents a potential safety-related defect affecting 2025 Kia K4 vehicles. I am willing to provide additional documentation, dealership records, and vehicle information if needed. Vehicle: 2025 Kia K4 Purchase date: August 2025 Current mileage: Approximately 58,000 First occurrence: Before 24,000 miles Dealer investigation: Conducted, but no cause identified.

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 11775789
2025 Kia K4Driver assistanceCrash

The contact owns a 2025 Kia K4. The contact stated that while driving at various highway speeds, the lane keep steering assist erroneously engaged causing the vehicle to steer out of the intended lane. The contact stated that the failure was recurrent, causing the vehicle to unintendedly steer to the left and to crash into a concrete median wall on one occasion. The failure mileage was 9,000.

Filed Incident Lane departureNHTSA 11775345

Questions about the Kia K4

Which Kia K4 years have the most problems?

By the number of complaints owners filed with NHTSA: 2025 (53), 2026 (13). Allowing for how long each has been on the road, the 2025 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.

What are the most common Kia K4 problems?

Across every model year, owners report problems with the driver assistance (21), electrical system (18), engine & cooling (11) most often.

How many recalls does the Kia K4 have?

NHTSA lists 3 recalls across all Kia K4 model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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