1996 GMC Jimmy Owner's Manual - Page 253

U L If you get gasoline on yourself and then something ignites it, you could be badly burned. Gasoline can spray out on if you open the you fuel filler cap too quickly. This spray can happen if your tank is nearly full, and more likely in is hot weather. Open the fuel filler cap slowly and wait for any "hiss" noise to stop. Then unscrew the cap all the way. Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See "Cleaning the Outside of Your Vehicle" in the Index. When you put the cap back on, turn it to the right until you hear at least three clicks. 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 into the atmosphere. See "Malfunction Indicator Lamp" in the Index. NOTICE: If you need a new cap, be sure to the right get type. Your dealer can get one for If you get you. the wrong type, it may not fit or have proper venting, and your fuel tank and emissions system might be damaged. 6-6