Reduced Engine Power; Check Eng Oil Level; Check Eng Oil Pressure - GMC 2001 Yukon XL Owner's Manual

Reduced Engine Power

If your vehicle is equipped with the 8.1L engine, this
light may come on because of an electronic throttle
control system fault. See "Engine Overheating" in the
Index for further information.

Check Eng Oil Pressure

See "Oil Pressure Gage" in the Index for more information.
2-88
This message is displayed
when the cooling system
temperature gets too hot and
the engine further enters
the engine coolant
protection mode.
This message is displayed
when the engine oil pressure
is low.

Check Eng Oil Level

Once oil is added, it may need time to drain and settle in
the engine before this message will turn off. It is best to
let the engine cool down (if it is hot) or warm up (if it is
cold) and cycle the ignition to be sure this message turns
off. Refer to the dipstick for the correct level.
See "Engine Oil" in the Index on how to check the oil
level and for what type of oil to add.
This message is displayed
when the engine oil level
is low.