Radiator Pressure Cap; Engine Overheating - GMC Canyon Owner's Manual

Radiator Pressure Cap

Notice: If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
See Engine Compartment Overview on page 324
for more information on location.

Engine Overheating

A coolant temperature gage is on the instrument
panel. See Engine Coolant Temperature Gage
on page 187.
The air conditioning might stop working if the
engine is too hot. This is normal and helps cool
the engine.
340
If Steam Is Coming From Your Engine
CAUTION:
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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.
If 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.
Notice: If your engine catches fire because
you keep driving with no coolant, your vehicle
can be badly damaged. The costly repairs
would not be covered by your warranty.