Sunroofs Shattering Without Warning?

ABC News found nearly 400 complaints, new call to change the way sunroofs are being made.
1:18 | 08/07/15

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Transcript for Sunroofs Shattering Without Warning?
Next tonight, an ABC news investigation. A danger perhaps right in your own car. Sunroofs shattering without warning. There have been hundreds of complaints already. And now a government agency is investigating. Mara schiavocampo on the case for us. Reporter: Kate Vasiloff says that her sunroof spontaneously exploded while waiting at a stop sign. It sounded like a gunshot. Reporter: Wade Owens says his sunroof shattered while he was driving on the highway. All the glass caves in. Boom. Reporter: What's going on? Most sunroofs are made of tempered glass. Which breaks into smaller, rounded pieces instead of sharp, dangerous shards. Spontaneous shattering can happen if there is a manufacturing defect, according to glass expert mark meshulam. In an absolute instant this glass is completely broken. Reporter: ABC news found nearly 400 complaints in the national highway traffic safety administration's database across all makes and models. Some auto safety experts are calling for new safety standards for sunroofs and requiring them to be made of laminated glass. The kind used in windshields to make sure the driver is protected. Mara schiavocampo, ABC news, new York. Thank you.

This transcript has been automatically generated and may not be 100% accurate.

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