FaultScore

KIA driver assist problems

Owners have filed 1,174 complaints with NHTSA about the driver-assist systems on KIA vehicles — 2% of everything reported about the brand, across 28 models. The model that accounts for most of them is the KIA Sorento, worst in 2019.

These are raw counts. A model that sold in millions appears near the top for that reason alone — the grade never compares one model with another.

1,174

Complaints

2%

Share of all KIA complaints

191

Crashes

10

Fires

Which KIA models have the most driver assist problems

Sorento 208 17.7%

Worst in 2019

Telluride 176 15.0%

Worst in 2024

Sportage 125 10.6%

Worst in 2023

Optima 108 9.2%

Worst in 2019

Forte 90 7.7%

Worst in 2019

Soul 70 6.0%

Worst in 2023

K5 65 5.5%

Worst in 2021

EV9 61 5.2%

Worst in 2024

Seltos 42 3.6%

Worst in 2021

EV6 42 3.6%

Worst in 2022

Niro 33 2.8%

Worst in 2023

Carnival 28 2.4%

Worst in 2025

K4 28 2.4%

Worst in 2025

Worst KIA model years for driver assist problems

Vehicle Complaints Share of that year Median miles Grade
2023 KIA Sportage 60 19% 14,150 F
2024 KIA Telluride 58 18% 22,000 D
2024 KIA EV9 57 17% B
2019 KIA Optima 55 17% 20,000 F
2019 KIA Sorento 43 7% 13,175 B
2022 KIA EV6 33 8% 65,300 F
2023 KIA Telluride 33 11% 3,006 B
2021 KIA Telluride 32 7% 9,300 F
2019 KIA Forte 29 13% 11,500 B
2023 KIA Sorento 28 14% 35,000 B
2022 KIA Telluride 24 6% 10,500 D
2021 KIA K5 22 9% 17,951 B
2023 KIA Forte 22 23% 35,000 F
2025 KIA K4 21 24% 1,300 F
2022 KIA K5 19 9% 9,000 F
2020 KIA Telluride 18 2% 20,000 C
2016 KIA Sorento 17 1% 100,000 A
2017 KIA Sorento 16 2% 62,000 A
2025 KIA Sorento 15 13% F
2018 KIA Sorento 14 4% 72,000 F