Chrysler has issued a recall of nearly 40,000 2009 Dodge Ram light duty pickup trucks equipped with the manual temperature control where the software programmed for the heating ventilation and air condition module may cause the defrosting and defogging functions to become non-functional. The result of this can lead to a decrease in visibility and raise the chance of crashing. Owners can contact Chrysler directly at 1-800-835-1403.