Stoneridge Inc. /zigman2/quotes/208765999/composite SRI +3.62% , a Novi, Michigan-based maker of electrical and electronic vehicle systems, lowered its third-quarter guidance on Wednesday, and said the continued supply chain-related challenges and higher costs had reduced production schedules for its original equipment manufacturers, or OEM, customers. The company noted an IHS Markit forecast from Sept. 16 for third-quarter worldwide automotive production suggested its weighted average end-markets declined by about 13% f relative to assumptions made on its second-quarter earnings call. "The overall transportation industry continues to be challenged by the global pandemic and its aftermath," CEO Jon DeGaynor said in a statement. "Recent production shutdowns and altered production forecasts at our automotive and commercial vehicle OEM customers, often on short notice, have created volatility and had a negative impact on our financial results for the third quarter." The company is now expecting a third-quarter loss per share of 40 cents to 34 cents, and adjusted loss per share of 29 cents to 23 cents. Sales ae expected to come in at about $180 million. The FactSet consensus is for a loss per share of 10 cents and sales of $185 million. The company has raised prices to mitigate the higher costs, where possible. Shares were down 1.5% premarket and have lost 31% in the year to date, while the S&P 500 /zigman2/quotes/210599714/realtime SPX -1.18% has gained 16%.