The Verdict
Worst problem area
Driver Assistance & Speed Control
Driver Assistance & Speed Control leads by volume: 7 of 13 complaints (54%) mention it.
Complaints filed fell from 49 in 2025 to 13 in 2026.
At a glance
- NHTSA complaints
- 13
- Recall campaigns
- 1
- EPA fuel cost per year
- $1,900–$2,200
- Combined MPG
- 28–33
Complaints by model year
Where owners report problems
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Cost, Fuel Economy & Complaint History
| Category | 2025 | 2026 | 2027 | vs. 2026 Midsize Cars |
|---|---|---|---|---|
| Annual fuel cost ($) | 1,850–2,150 | 1,900–2,200 | 1,900–2,200 | |
| Combined MPG | 29–34 | 28–33 | 28–33 | |
| City / Highway MPG | 26–30 / 36–40 | 26–29 / 33–39 | 26–29 / 33–39 | |
| CO₂ tailpipe (g/mi) | 264–303 | 267–314 | 267–314 | |
| Complaints filed | 49 | 13 | 0 | |
| Recalls issued | 2 | 1 | 0 | |
| Crash-involved complaints | 11 | 6 | 0 | |
| Fire-involved complaints | 0 | 0 | 0 | |
| Injuries reported | 8 | 1 | 0 | |
| Deaths reported | 0 | 0 | 0 | |
| Configurations compared | 3 | 3 | 3 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2026 Kia K4 have?
1 NHTSA recall campaign as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2026 Kia K4?
Driver Assistance & Speed Control: 7 of 13 NHTSA complaints (54%) mention it.
What gas mileage does the 2026 Kia K4 get?
EPA rates it 28–33 MPG combined.
How much does it cost to fuel a 2026 Kia K4?
EPA estimates $1,900–$2,200 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (5)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (AV-S1) | 4 | 2.0L | Front-Wheel Drive | Regular | Midsize Cars | 29 mpg (high) | 39 mpg (high) | 33 mpg (high) | $1,900 (low) | 269 g/mi |
| Configuration 2 | Automatic (AV-S1) | 4 | 2.0L | Front-Wheel Drive | Regular | Midsize Cars | 29 mpg (high) | 39 mpg (high) | 33 mpg (high) | $1,900 (low) | 267 g/mi (low) |
| Configuration 3 | Automatic (S8) | 4 | 1.6L | Front-Wheel Drive | Regular | Midsize Cars | 26 mpg (low) | 33 mpg (low) | 28 mpg (low) | $2,200 (high) | 314 g/mi (high) |
| Configuration 4 | Automatic (AV-S1) | 4 | 2.0L | Front-Wheel Drive | Regular | Large Cars | 28 mpg | 34 mpg | 30 mpg | $2,100 | 289 g/mi |
| Configuration 5 | Automatic (S8) | 4 | 1.6L | Front-Wheel Drive | Regular | Large Cars | 26 mpg (low) | 33 mpg (low) | 28 mpg (low) | $2,200 (high) | 314 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 1 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 2 | 1 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 5 | 2 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 1 | 1 | 0 | 0 | 0 |
| Airbags & Restraints | 1 | 1 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 7 | 3 | 0 | 0 | 0 |
| Body, Seats & Latches | 1 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 5 | 2 | 0 | 1 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (1)
SEAT BELTS:REAR/OTHER:ANCHORAGE
- Defect
- Kia America, Inc (Kia) is recalling certain 2027 Kia Telluride and 2026 Kia K4 vehicles. The rear center seat belt anchor buckle in the 2026 K4 and the third-row center seat belt anchor buckle in the 2027 Telluride may not latch properly.
- Consequence
- A seat belt buckle that is not latched properly can fail to restrain an occupant in a crash, increasing the risk of injury.
- Remedy
- Dealers will inspect and replace the anchor buckle assembly, as necessary, free of charge. Owner notification letters were mailed May 5, 2026. Owners may contact Kia at 1-800-333-4542. Kia's number for this recall is SC364. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning March 20, 2026.