A Tuesday announcement revealed that General Motors will be the first automaker to incorporate Apple's personal digital assistant Siri in its vehicles; with two of the automakers Chevrolet brand vehicles - Sonic and Spark - to integrate Siri in next year models.

According to the announcement, made by Chevrolet at the 2012 Los Angeles International Auto Show, Siri will be activated on the next year models of Sonic and Spark with the help of a button on the vehicles' steering wheels.

As per the announcement, reported by CBS Detroit, the Siri activation service - known as `Siri in Eyes Free' mode - which will initially come aboard Chevrolet's Sonic LTZ and RS models and Spark 1LT and 2LT models, will connect to the Chevrolet MyLink infotainment system through the pairing of iPhone over Bluetooth.

The Siri integration will enable the owners of the mentioned Sonic and Spark models to make voice-activated calls to their iPhone Contacts; play songs in the iTunes library; compose, send and listen to iMessages or text messages from Contacts; access Calendar and add appointments; and ask Siri game scores, national holiday dates, and other such simple questions.

Noting that "Siri complements MyLink's existing capabilities to help deliver an incredible driving experience," Cristi Landy - Chevrolet's marketing director for small cars - said that Chevrolet's announcement that "Siri Eyes Free capability will be available in the Spark and Sonic well before the luxury brands" clearly underscores the automaker's "commitment to small-car customers."