Standard & Poor's Corp. put securities issued by a GMAC LLC unit on its Credit Watch list, potentially jeopardizing the lender's efforts to get government funding.

S&P put notes issued by New Center Asset Trust, a GMAC commercial-paper facility, on the list Friday with "negative implications." The securities carry investment grades, with ratings of A1-plus and A1, S&P said.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.