2009 Buick Enclave Owner's Manual - Page 296

5-24 Service and Appearance Care Notice: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss, change the oil and reset the oil life system. See Engine Oil on page 5-12. Overheated Engine Protection Operating Mode This emergency operating mode lets the vehicle be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, there is a significant loss in power and engine performance. The temperature gage indicates an overheat condition exists. Driving extended distances and/or towing a trailer in the overheat protection mode should be avoided. When to Check Power Steering Fluid It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. Power Steering Fluid How to Check Power Steering Fluid To check the power steering fluid: 1. Turn the key off and let the engine compartment cool down. 2. Remove engine oil fill cap. 3. Slide engine cover rearward and lift to remove. The power steering fluid reservoir is located toward the front of the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 5-10 for reservoir location. 4. Wipe the cap and the top of the reservoir clean. 5. Unscrew the cap and wipe the dipstick with a clean rag. 6. Replace the cap and completely tighten it. 7. Remove the cap again and look at the fluid level on the dipstick.