Special Coverage (Revised Service Procedure). Some 2012 model year Chevrolet Equinox and GMC Terrain vehicles, equipped with a 2.4L engine, may exhibit excessive engine oil consumption (less than 2,000 miles [3,200 km] per quart [0.946 L] of engine oil), due to piston ring wear. If this condition is present, an audible rattle or knock from the engine may be heard. The engine oil pressure telltale may illuminate on the instrument panel or the following message may appear in the Driver Information Center: ?Oil Pressure Low ? Stop Engine?. Dealers are to perform an oil consumption test and install new pistons and piston rings. The repairs will be made at no charge to the Customer.
