Chrysler Group is issuing two recalls that will affect approximately 666,735 vehicles, the National Highway Traffic Safety Administration reported. The recalls will address concerns related to airbags and active head restraints.

The first recall affects 224,254 2013 model-year Town & Country, Dodge Grand Caravan and RAM C/V Tradesman vehicles manufactured May 10, 2012, through June 7, 2013. A software error may result in the opposite side airbags deploying from the collision point. In other words, a left side impact would deploy the right side airbags and vice versa.

In the event of a crash the wrong side airbags could deploy, leaving the occupant with no airbag protection at the point of impact, NHTSA said.

To fix the problem, Chrysler dealers will flash the occupant restraint control module, free of charge. This recall is expected to begin in August. The recall campaign number is N44.

In a second action, Chrysler is recalling 442,481 2011-2013 model-year Sebring and 200 vehicles manufactured June 28, 2011, through Dec. 13, 2012; 2011-2013 MY Dodge Avenger vehicles manufactured June 25, 2011, through Jan. 14, 2013; 2011-2012 MY Dodge Nitro vehicles manufactured June 17, 2011, through Dec. 15, 2011; and 2011-2012 MY Jeep Liberty vehicles manufactured June 17, 2011, through Aug. 15, 2012. Electrical over-stress of a resistor in the occupant restraint control module may lead to the non-deployment of the active head restraints during a rear impact collision.

Chrysler dealers will flash the Totally Integrated Power Module (TIPM) or replace the occupant restraint control module, as needed, free of charge. This recall is also expected to get under way in August. Chrysler's number for this recall campaign is N38.

Vehicle owners can reach Chrysler at 1-800-247-9753.