Buick Enclave: Recommended Fluids, Lubricants, and

 Engine Oil Life System. Driving for Better Fuel Economy. Roadside Assistance Program

Engine Oil Life System The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter. The oil life system should be reset to 100% only following an oil change. Resetting the Oil Lif

 Description and Operation

COOLING FAN DESCRIPTION AND OPERATION Fig. 49: Cooling Fan Description and Operation The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel (S/P) configuration that allows the engine control module (ECM) to operate both f