2003 Nissan Xterra Owner's Manual - Page 139

● Do not stop or park the vehicle over flammable materials such as dry grass, waste paper or rags. They may ignite and cause a fire. LOW TIRE PRESSURE WARNING SYSTEM (if so equipped) The low tire pressure warning system monitors tire pressure of all tires (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 while driving). Frequently check the tire pressure and adjust pressure of each tire properly. WARNING ● If the low tire pressure warning light comes on while driving, avoid sudden steering maneuvers or abrupt braking, reduce vehicle speed, pull off the road to a safe location and stop the vehicle as soon as possible. Serious vehicle damage could occur and may lead to an accident and could result in serious personal injury. Check the tire pressure for all four tires and adjust the pressure to the COLD tire pressure shown on the tire placard. If you have a flat tire, replace it with a spare tire as soon as possible. (See "Flat tire" in the "In case of emergency" section for changing a flat tire.) ● When a spare tire is mounted or a wheel is replaced, tire pressure will not be indicated and the low tire pressure warning system will not function. Contact your NISSAN dealer as soon as possible for tire replacement and/or system resetting. ● Do not inject any tire liquid or aerosol tire sealant into the tires, as this may cause a malfunction of the tire pressure sensors. CAUTION ● Do not use leaded gasoline. Deposits from leaded gasoline will seriously reduce the three-way catalyst's ability to help reduce exhaust pollutants. ● 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 a NISSAN dealer. ● Avoid driving with an extremely low fuel level. Running out of fuel could cause the engine to misfire, damaging the three-way catalyst. ● Do not race the engine while warming it up. ● Do not push or tow your vehicle to start the engine. Flat tire warning If the vehicle is being driven with very low tire pressure (lower than 27 psi, 190 kPa), the low tire pressure warning light comes on and the chime sounds for about 10 seconds. For additional information regarding the above warning, see "Warning/indicator lights and audible reminders" in the "Instruments and controls" section. Starting and driving 5-3