General Motors is recalling certain 2012 Chevrolet Equinox and 2012 GMC Terrain vehicles for inaccurate tire pressure warnings. The tire pressure monitoring system is designed to illuminate the tire pressure warning light when the pressure in a tire is 25% below the recommended cold tire pressure. On certain vehicles, the light will not illuminate until the tire pressure is 25% below the recommended cold tire pressure. The result of under inflated tires are premature wear, irregular handling and a possible blow out. Owners wanting more information about the problem can contact Chevrolet at 1-800-630-2438 and GMC AT 1-866-996-9463.