CHICAGO: General Motors is searching for a new head of worldwide communications, retaining the New York-based executive search firm Russell Reynolds Associates to look at both internal and external candidates.

The auto giant has not set a deadline to replace the former vice president of communications, John Onoda, said a GM spokesman.

Onoda left the post in September to assume a similar position with Visa USA, the US arm of Visa International. Onoda had been with GM only two years ...