Toyota Motor Sales U.S.A. is recalling 2005-2006 model-year Tundra trucks because their side curtain-shield air bags and seat belt pretensioners are at risk for deploying unexpectedly, the automaker reported.

The side curtain-shield air bags deploy from the roof during certain types of crashes. The possibility of a false activation is tied to programming glitches in the air bag control modules.

Unexpected activation of the curtain-shield air bags “could increase the risk of injury to the occupant,” Toyota said in a released statement. Toyota dealers will replace the air bag control module, free of charge.  

This Tundra truck recall is part of a broader recall that also includes 2003-2006 Land Cruiser, 2004-2006 4Runner, 2005-2006 Sequoia, 2003-2006 LX 470, and 2004-2006 GX 470 vehicles. Approximately 320,000 vehicles are involved.

Vehicle owners can reach Toyota Customer Service at (800) 331-4331.