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Black plate (21,1)
GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care
10-21
Notice:
Running the engine
without coolant may cause
damage or a fire. Vehicle damage
would not be covered by the
warranty. See
Protection Operating Mode on
page 10
for information on
driving to a safe place in an
emergency.
If Steam is Coming from the
Engine Compartment
{
WARNING
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. 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.
(Continued)
WARNING (Continued)
If you keep driving when the
vehicles engine is overheated,
the liquids in it can catch fire. You
or others could be badly burned.
Stop the engine if it overheats,
and get out of the vehicle until the
engine is cool.
See
Protection Operating Mode on
page 10
for information on
driving to a safe place in an
emergency.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious
problem.
If there is an engine overheat
warning, but no steam is seen or
heard, the problem may not be too
serious. Sometimes the engine can
get a little too hot when the vehicle:
.
Climbs a long hill on a hot day
.
Stops after high-speed driving
.
Idles for long periods in traffic
.
Tows a trailer; see
.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so:
1. Turn the air conditioning off.
2. Turn the heater on to the highest
temperature and to the highest
fan speed. Open the windows as
necessary.
3. If stopped in a traffic jam, apply
the brake, shift to N (Neutral);
otherwise, shift to the highest
gear while driving
—
D (Drive) or
3 (Third).