GMC 2012 Canyon Owner's Manual page 233

This would allow fuel to evaporate
into the atmosphere. If the fuel cap
is not properly installed, the FUEL
CAP message appears on the
Driver Information Center (DIC) and
the check engine light will be lit on
the instrument panel cluster. See
and
for more
information.
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel
by shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Never fill a portable fuel container
while it is in the vehicle. Static
electricity discharge from the
container can ignite the fuel
vapor. You can be badly burned
and the vehicle damaged if this
occurs. To help avoid injury to you
and others:
Dispense fuel only into
approved containers.
Do not fill a container while it
is inside a vehicle, in a
vehicle's trunk, pickup bed,
or on any surface other than
the ground.
(Continued)
Bring the fill nozzle in contact
with the inside of the fill
opening before operating the
nozzle. Contact should be
maintained until the filling
is complete.
Do not smoke while
pumping fuel.
Do not use a cellular phone
while pumping fuel.