GMC Chevrolet SSR 2003 Owner's Manual page 245

To remove the fuel cap, turn it slowly to the left
(counterclockwise). The fuel cap has a spring to it; if you
let go of the cap too soon, it will spring back to the right.
CAUTION:
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If you spill fuel and then something ignites it,
you could be badly burned. Fuel can spray out
on you if you open the fuel cap too quickly.
This spray can happen if your tank is nearly
full, and is more likely in hot weather. Open
the fuel cap slowly and wait for any hiss noise
to stop. Then unscrew the cap all the way.
While refueling, let the fuel
cap hang by the tether
below the fuel fill opening.
CAUTION:
{
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.
Be careful not to spill fuel. Clean fuel from painted
surfaces as soon as possible. See Cleaning the
Outside of Your Vehicle on page 5-75.
When you put the fuel cap back on, turn it to the
right (clockwise) until you hear a clicking sound. Make
sure you fully install the cap. The diagnostic system can
determine if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate in to
the atmosphere. See Malfunction Indicator Lamp
on page 3-30.
Notice: If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not fit properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. See Malfunction Indicator Lamp on
page 3-30.
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