What is a Tire Pressure Monitoring System (TPMS)?
A Tire Pressure Monitoring System is a safety device
that measures, identifies and warns the driver when
one or more tires is significantly under-inflated.
What is a Tire Pressure Monitoring System (TPMS)? A Tire Pressure Monitoring System is a safety device that measures, identifies and warns the driver when one or more tires is significantly under-inflated.
Citing tire pressure maintenance as a key safety issue, in 2000 Congress passed the TREAD Act (Transportation Recall Enhancement, Accountability and Documentation) requiring that new vehicles have a tire pressure monitoring system (TPMS) that measures, identifies and warns the driver when one or more tires becomes significantly under-inflated. Beginning model year 2008, all vehicles made or sold in the U.S. were required to have Tire Pressure Monitoring Systems (TPMS). Why Monitor Tire Pressure? Tires are one of the most critical safety features on a vehicle and most people ignore them. There is a flat tire for every 46,000 miles driven with more than half due to under-inflation and three-fourths of all tire problems are due to a slow loss of pressure by way of a slow leak or under inflation.
A loss of 3 PSI relates to an increase of tire wear by 1.5 percent and the life of the tire is reduced by 10 percent.
•33,000 crashes are a result of under-inflated tires
•75% of roadside flats are caused by a slow leak or under inflation •35% of drivers admit to never checking tire pressure
•An SUV owner can save as much as $600 a year just by keeping the tires properly inflated
•2.8 Billion gallons of gas is wasted annually in the U.S. at a cost of $11.2 billion
•NHTSA estimates TPMS could save as many as 660 lives annually Source: National Highway Traffic Safety Administration Data Tires influence the vehicle’s ability to handle, steer, brake, and maintain stability. If the tires are under-inflated, vehicle safety is compromised. Sudden tire failure can have serious consequences, especially at high speeds. For example, a 32 PSI tire with a 25 percent loss runs at 24 PSI. At 32 PSI the tire can support 1085 lbs. per axle–at 24 PSI it can only support 900 lbs. per axle and the car will be dangerously overloaded resulting in potentially catastrophic tire failure. Besides improving safety, monitoring tire pressure can save at the pump and improve overall vehicle performance as vehicles with properly inflated tires run more efficiently.
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