The NHTSA is investigating older Dodge Ram pickups to see if there any defects with ignition switches.
Close to 115K Ram 2500 and 3500 trucks from model years 2004 to 2006 are part of the probe.
Chrysler (FIATY) says it's cooperating fully with regulators.
What to watch: The focus on safety issues with ignition switches could steer the industry toward wide-scale adoption of push-button starters. That development in turn could impact Delphi Automotive (DLPH +2.7%).