2014 Chrysler 300 Owner Manual - Page 540

538 MAINTAINING YOUR VEHICLE CAUTION! (Continued) • Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the event of engine malfunction, particularly involving engine misfire or other apparent loss of performance, have your vehicle serviced promptly. Continued operation of your vehicle with a severe malfunction could cause the converter to overheat, resulting in possible damage to the converter and vehicle. 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 tune-up to manufacturer's specifications, should be obtained immediately. To minimize the possibility of catalytic converter damage: • Do not shut off the engine or interrupt the ignition, when the transmission is in gear and the vehicle is in motion. Under normal operating conditions, the catalytic con- • Do not try to start the engine by pushing or towing the vehicle. verter will not require maintenance. However, it is important to keep the engine properly tuned to assure • Do not idle the engine with any spark plug wires proper catalyst operation and prevent possible catalyst disconnected or removed, such as when diagnostic damage. testing, or for prolonged periods during very rough idle or malfunctioning operating conditions. NOTE: Intentional tampering with emissions control systems can result in civil penalties being assessed against you.