Chevrolet models will have a Siri option from early 2013 (Photo: Chevrolet)

Chevrolet's smaller models will be able to use the iPhone's Siri voice-control software to operate several in-car functions, the brand announced at the Los Angeles auto show Tuesday.

Chevrolet said several Spark and Sonic models will from early 2013 be able to communicate through Siri using the brand's MyLink connectivity system. They will need an iPhone running iOS6.

Spark and Sonic RS owners will be able to use Siri to make calls, play songs, compose text messages and access calendar information on the iPhone.

But, although Siri will answer simple questions, the software won't provide answers to complex questions that require displaying a Web page.

Chevrolet said it is making Siri available in the Sonic and Spark before it goes into bigger models. This acknowledges the growing importance of the small-car segments, it said.

"Safe, easy, reliable and portable connectivity is a top priority for our customers,  said Cristi Landy, Chevrolet marketing director for small cars.

Chevrolet is one of General Motors' most important international brands, selling more than 4 million vehicles a year.