2003 Nissan Pathfinder Owner's Manual - Page 160

b. You suspect that exhaust fumes are entering into the passenger compartment. c. You notice a change in the sound of the exhaust system. d. You have had an accident involving damage to the exhaust system, underbody, or rear of the vehicle. grass, waste paper or rags. They may ignite and cause a fire. ¼ Do not race the engine while warming it up. ¼ Do not push or tow your vehicle to start the engine. CAUTION ¼ Do not use leaded gasoline. Deposits from leaded gasoline seriously reduce the three way catalyst's ability to help reduce exhaust pollutants. ¼ Keep your engine tuned up. Malfunctions in the ignition, fuel injection, or electrical systems can cause overrich fuel flow into the three way catalyst, causing it to overheat. Do not keep driving if the engine misfires, or if noticeable loss of performance or other unusual operating conditions are detected. Have the vehicle inspected promptly by an authorized NISSAN dealer. ¼ Avoid driving with an extremely low fuel level. Running out of fuel could cause the engine to misfire, damaging the three way catalyst. LOW TIRE PRESSURE WARNING SYSTEM (if so equipped) The low tire pressure warning system monitors tire pressure of all wheels (except the spare tire). The low tire pressure warning system will activate only when the vehicle is driven at speeds above 20 MPH (32 km/h). Also, this system may not detect a sudden drop in tire pressure (for example a flat tire by catching something while driving). Frequently check the tire pressure and adjust pressure of each tire properly. THREE WAY CATALYST The three way catalyst is an emission control device, installed in the exhaust system. In the converter, exhaust gases are burned at high temperatures to help reduce pollutants. WARNING ¼ The exhaust gas and the exhaust system are very hot. Keep people, animals or flammable materials away from the exhaust system components. ¼ Do not stop or park the vehicle over flammable materials, such as dry LOW PRESSURE warning If the vehicle is being driven with a flat tire or low tire pressure (lower than 25 psi, 171 kPa), the low tire pressure warning light illuminates and the chime sounds for about 10 seconds. For additional information regarding the above warning, see "Warning/indicator lights and auStarting and driving 5-3