Buick RIVIERA 1993 Manual page 225

A
CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from a---
underhood electric fan.
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A
CAUTION:
Things that burn can get on hot engine parts
and start a fire. These include liquids like
gasoline, oil, coolant, brake fluid, windshield
washer and other fluids, and plastic or rubber.
You or others could be burned. Be careful not to
drop or spill things that will burn onto a hot
engine.
Before closing the hood, be sure all the filler caps are on
properly.
Then just pull the hood down and close it firmly.