Warning:Refer toBrake Fluid Irritant Warning.
Caution:Refer toBrake Fluid Effects on Paint and Electrical Components Caution.
Visually inspect the brake fluid level through the brakemaster cylinder reservoir.If the brake fluid level is at or below the half-full pointduring routine fluid checks, the brake system should be inspectedfor wear and possible brake fluid leaks.If the brake fluid level is at or below the half-full pointduring routine fluid checks, and an inspection of the brake systemdid not reveal wear or brake fluid leaks, the brake fluid may betopped-off up to the maximum-fill level.If brake system service was just completed, the brake fluidmay be topped-off up to the maximum-fill level.If the brake fluid level is above the half-full point, addingbrake fluid is not recommended under normal conditions.If brake fluid is to be added to the master cylinderreservoir, clean the outside of the reservoir on and around thereservoir cap prior to removing the cap and diaphragm. Use only GMapproved brake fluid from a clean, sealed brake fluidcontainer.Engine Coolant Thermostat Housing Replacement (LEA) Engine Cooling Thermostat
Removal ProcedureNote:A drain has been provided at the bottom of the water pump for engine block coolantdrainage.Drain the coolant from the engine block at the water pump drain. After the coolanthas drained, tighten the drain bolt.Lower the vehicle.Disconnect the engine wiring harness electrical con ...