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GM to Reprogram Oil Monitor System in 779,000 Vehicles
General Motors Co. is asking 779,000 of its customers to bring in their cars and crossovers to reprogram a system that tells them when to change the engine oil.
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General Motors Co. is asking 779,000 of its customers to bring in their cars and crossovers to reprogram a system that tells them when to change the engine oil.
The service action applies to 2010-2012 Chevrolet Equinox and GMC Terrain crossovers and Buick Regal and LaCrosse sedans equipped with four-cylinder engines.
GM says the campaign was prompted by an upswing in warranty claims for noisy balance-shaft chains. The owner's manual for the affected vehicles tells owners to change the oil and filter in their cars at least once per year. But the oil life monitor, which assesses oil quality based on driving habits, may not signal the need for service that frequently.
GM says its own engineers determined that the balance-shaft chain lasts longer if operators follow the annual oil change schedule regardless of miles driven. The company says its dealers will reprogram the oil monitoring system at no charge between now and the end of February 2015.
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