2004 Nissan Xterra Owner's Manual - Page 184

FIRST AID KIT FLAT TIRE LOW TIRE PRESSURE WARNING SYSTEM (if so equipped) The low tire pressure warning system monitors tire pressure of all tires (except the spare tire). If the vehicle is being driven with a flat tire or low tire pressure (lower than 28 psi, 193 kPa), the low tire pressure warning system will activate and warn you of it by the low tire pressure warning light. This system will activate only when the vehicle is driven at speeds above 20 MPH (32 km/h). For more details, please refer to "Warning/indicator lights and audible reminders" in the "Instruments and controls" section, and "Low tire pressure warning system" in the "Starting and driving" section. WCE0057 A first aid kit is located on the back door trim panel. To remove the first aid kit: 1 2 Squeeze the latch buttons. Pull the two straps apart to unfasten. 6-2 In case of emergency