2009 Dodge Ram 1500 Pickup Owner Manual - Page 398

396 STARTING AND OPERATING After removing the dispensing nozzle, tighten the gas cap 1⁄4 turn until one click is heard/felt. This is an indication that the cap is properly tightened. Be sure the gas cap is tightened every time the vehicle is refueled. CAUTION! Damage to the fuel system or emission control system could result from using an improper fuel tank filler tube cap (gas cap). A poorly fitting cap could let impurities into the fuel system. Also, a poorly-fitted aftermarket cap can cause the MIL to illuminate, due to fuel vapors escaping from the system. Loose Fuel Filler Cap (Gas Cap) Message heard/felt. This is an indication that the gas cap is properly tightened. Press the odometer reset button to turn the message off. If the problem persists, the message will appear the next time the vehicle is started. This might indicate a damaged cap. If the problem is detected twice in a row, the system will turn on the MIL. Resolving the problem will turn the MIL off. VEHICLE LOADING Certification Label As required by National Highway Traffic Safety Administration regulations, your vehicle has a certification label affixed to the driver's side door or pillar. This label contains the month and year of manufacture, If the vehicles diagnostic system determines that the fuel Gross Vehicle Weight Rating (GVWR), Gross Axle Weight filler cap in loose, improperly installed, or damaged, a Rating (GAWR) front and rear, and Vehicle Identification "gASCAP" message will be displayed in the instrument Number (VIN). A Month-Day-Hour (MDH) number is cluster. Tighten the gas cap until a "clicking" sound is