Pontiac 2003 Aztek Owner's Manual page 321

If Steam Is Coming From Your Enpine
m
Steam from an overheated engine can burn
you badly, even if you just open the hood. Stay
away from the engine if you see or hear steam
coming from it. Just turn it off and get
everyone away from the vehicle until it cools
down. Wait until there is no sign of steam or
coolant before you open the hood.lf you keep
driving when your engine is overheated, the
liquids in it can catch fire. You or others could
be badly burned. Stop your engine if it
overheats, and get out of the vehicle until the
engine is cool.
See "Overheated Engine Protection Operating
Mode" in the Index for information on driving
to a safe place in an emergency.
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