Nightly News   |  November 25, 2011

Chevy Volt under scrutiny

Federal officials say they’ve opened an investigation into battery fires involving a car that's been praised as a big step forward for Chevy. NBC News’ Brian Williams reports.

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This content comes from a Full-Text Transcript of the program.

BRIAN WILLIAMS, anchor: We have late news tonight about the Chevy Volt , which has been praised, as you may know, as a big step forward for Chevy and for General Motors . Federal officials tonight say they are investigating the safety of the lithium ion battery in the Chevy Volt . The National Highway Traffic Safety Administration says the battery caught fire after some recent crash tests. For its part, GM says it supports the investigation and it's cooperating, but the company notes these fire happened after extreme situations, and there are no reports of similar incidents by owners. A lot of fire departments across the country have been training up their members in how to fight car fires that involve these batteries.