2010 Jeep Grand Cherokee Owner's Manual - Page 380

MAINTAINING YOUR VEHICLE 379 NOTE: Intentional tampering with emissions control To minimize the possibility of catalytic converter damsystems can result in civil penalties being assessed age: against you. • Do not shut off the engine or interrupt the ignition, when the transmission is in gear and the vehicle is in WARNING! motion. A hot exhaust system can start a fire if you park over • Do not try to start the engine by pushing or towing the materials that can burn. Such materials might be vehicle. grass or leaves coming into contact with your exhaust system. Do not park or operate your vehicle in areas • Do not idle the engine with any spark plug wires disconnected or removed, such as when diagnostic where your exhaust system can contact anything that testing, or for prolonged periods during very rough can burn. idle or malfunctioning operating conditions. In unusual situations involving grossly malfunctioning engine operation, a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, stop the vehicle, turn off the engine and allow it to cool. Service, including a tuneup to manufacturer's specifications, should be obtained immediately. 7