NEW YORK, Oct 14 (Reuters) - JPMorgan Chase's ( JPM ) exposure

to bankrupt auto dealer Tricolor is "not our finest moment," the

bank's CEO Jamie Dimon told reporters on a conference call on

Tuesday.

JPMorgan ( JPM ) charged off $170 million in the third quarter

related to the situation, and the bank is reviewing its

controls, Chief Financial Officer Jeremy Barnum said.

The bankruptcies of automotive-related Tricolor and companies

First Brands, along with potential losses at banks and

investment funds, are raising new concerns about hidden risks in

parts of the credit market - prompting investors to take a

closer look at risky debt.