Forvia's S&P Global Ratings-adjusted EBITDA margin declined to 7.0% in first-half 2024 from 7.9% in 2023, following cost overruns in its interiors division, high restructuring costs, and lower auto production in Europe. We anticipate lower profitability will result in slower-than-expected deleveraging, although the group sticks to its public deleveraging target. We estimate Forvia's adjusted fund from operations (FFO) to debt will improve only slightly, to 12.9% at year-end 2024 from 11.8% in 2023 and could be constrained under 15%, our downside trigger, through 2025 as global auto market conditions remain volatile. We therefore revised our outlook on Forvia to negative from stable and affirmed our 'BB' long-term issuer credit rating and issue ratings on the company and its unsecured debt.