Certain Scion vehicles sold from Gulf States Toyota and Southeast Toyota with Rostra cruise control may have a problem where the cruise control does not release the throttle the first time the on/off switch is pressed. If the throttle is not released when needed, a crash could occur. The vehicle manufacturers will notify owners and replace the cruise control free of charge. Rostra will notify purchasers of the aftermarket cruise controls and replace the units free of charge. The recall began February 13, 2007.