2009 Dodge Viper Owner Manual - Page 171

STARTING AND OPERATING 169 TIRE PRESSURE MONITOR SYSTEM (TPMS) Low Tire Indicator If tire pressure falls below 23 psi (159 kpa), the Low Tire Pressure Telltale in the Message Center will illuminate, a chime will sound, and the words LOW TIRE will flash slowly in the Liquid Crystal Display (LCD) panel in the bottom of the speedometer. If tire pressure falls below 18 psi (124 kpa), the Low Tire Pressure Telltale will illuminate, a chime will sound, and the words "FLAT TIRE" will flash rapidly in the display. You should obtain immediate service if the low tire indicator is activated. NOTE: Each wheel on your vehicle contains a tire pressure sensor. The TPMS learns the location of each sensor though system programming. Although not required, the manufacturer recommends reprogramming the TPMS after rotating the tires so that the system can relearn each sensor's location. See your authorized dealer for system reprogramming. CAUTION! The Tire Pressure Monitor System (TPMS) has been optimized for the original equipment tires and wheels. The TPMS pressures have been established for the tire size equipped on your vehicle. Undesirable operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. Aftermarket wheels can cause sensor damage. Do not use aftermarket tire sealants or balance beads if your vehicle is equipped with the TPMS, as damage to the sensors may result. 5 WARNING! Do not exceed 55 mph (88 km/h) if the LOW Tire indicator is activated. Vehicle handling and braking may be reduced. You could have an accident and be severely or fatally injured.