South Korea New Vehicle Sales Fall 19.8% in September

South Korea new vehicle sales fell 19.8% year over year in September 2026 to 99,843 units, extending the decline seen in August as all five domestic automakers reported lower domestic sales. Hyundai remained the market leader with 49,022 vehicles sold, giving it a 49.1% share, but its volume dropped 25.7% from a year earlier. Kia ranked second with 45,705 units and a 45.8% share, down 6.7% year over year. The September results show a broad-based contraction across the domestic market rather than a decline concentrated at one automaker.

Renault Korea recorded 2,289 domestic sales in September, down 45.3% year over year, while KG Mobility sold 2,100 units, a 48.8% decline. GM Korea posted 727 domestic sales, down 40.9%. Their respective market shares were 2.3%, 2.1%, and 0.7%. Hyundai said its domestic performance was affected by consumers delaying purchases ahead of new-model introductions, while the Chuseok holiday reduced the number of operating and business days. These factors contributed to the weakness across the five automakers during the month.

Overseas sales, including exports, produced a more mixed picture. Hyundai's overseas sales fell 13.9%, while Kia increased 7.5%, GM Korea rose 79.5%, and KG Mobility gained 3.5%; Renault Korea declined 5.8%. Combined overseas sales of the five automakers decreased 1.3% year over year to 545,837 units. The differing export results helped offset some of the domestic weakness, particularly for automakers that recorded strong overseas demand despite softer sales in South Korea.

Global September sales were also uneven among the five automakers. Hyundai's global sales fell 16.0% year over year to 307,998 units, while Kia increased 4.9% to 281,162 units. GM Korea rose 73.3% to 41,101 units, KG Mobility declined 16.7% to 8,863 units, and Renault Korea fell 24.7% to 6,556 units. Combined global sales reached 645,680 units, down 4.7% year over year. GM Korea's result was supported by strong global demand for Chevrolet's compact SUVs, the Trailblazer and Trax.

Through the first nine months of 2026, the automakers continued to show different performance trajectories. Hyundai's global sales volume decreased 7.0% year over year to 2,886,763 units, while Kia increased 4.4% to 2,472,660 units. GM Korea recorded a 17.0% increase to 381,785 units, whereas KG Mobility decreased 1.6% to 81,033 units and Renault Korea fell 32.0% to 47,231 units. The year-to-date figures highlight the widening differences in global sales performance among the five manufacturers.

Model-level rankings in September were led by Hyundai's Grandeur mid-size sedan, which sold 8,898 units. Hyundai's all-new Avante compact sedan followed with 7,305 units, while Kia's Sorento mid-size SUV ranked third with 6,957 units. The three leading models therefore came from Hyundai and Kia, reflecting their dominant positions in the domestic market. The results also show continued demand across both passenger-car and SUV segments, with the Grandeur and Avante representing sedans and the Sorento representing a mid-size SUV.

Industry Impact & Outlook

The September decline indicates that South Korea's domestic vehicle market remained under pressure even as export and global performance diverged significantly among manufacturers. Hyundai's weaker domestic result was partly linked to buyers waiting for new models and fewer operating days, suggesting that timing effects may influence near-term demand. At the same time, stronger overseas results from Kia and GM Korea demonstrate the importance of international markets in offsetting domestic weakness. Automakers are likely to remain focused on new-model launches, export demand, and regional sales performance as they navigate differing market conditions through the remainder of 2026.

Frequently Asked Questions

What were South Korea's new vehicle sales in September 2026?
In September 2026, South Korea's five domestic automakers sold 99,843 new vehicles, down 19.8% from the same month in 2025. Hyundai remained the largest seller with 49,022 units and a 49.1% market share, while Kia followed with 45,705 units and a 45.8% share. Renault Korea, KG Mobility, and GM Korea also recorded year-over-year declines in domestic sales. The broader results were affected by consumers waiting for new models and fewer operating and business days during the Chuseok holiday.