A GM spokesman says models with 1.4 liter turbo engine are affected. However, no recall has been issued on cars already sold.
The news comes as GM deals with a recall of 1.6 million small cars due to an ignition switch flaw.
The Chevy Cruze is GM's best selling car in the U.S.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.