Maintaining proper tire pressure is crucial for vehicle handling, fuel economy, and tire health. The Tire Pressure Monitoring system (TPMS, for short) helps Motorists care for their cars and their tires by leveraging sensors to alert them to drops in tire inflation levels. You may not think of your Nissans TPMS often, but its a valuable piece of technology included in the majority of cars you spot on the road today! As a matter of fact, the benefits of a TPMS are so remarkable that road safety laws in many countries require Automakers to add it to every new vehicle sold. There are two Types of TPMS systems: direct and indirect; the first one directly gauges the pressure inside each tire, and the second tracks tire RPMs to pinpoint imbalances between your tires. If your Nissan has a direct TPMS, it leverages a Tire Pressure Monitoring System Sensor mounted within each tire to continuously gauge PSIs and notify the driver when air pressure decreases significantly. Like other vehicle components, your Tire Pressure Monitoring System Sensor can fail if subjected to impact, wear, age, or if its incorrectly installed following a tire replaCement or service. Typically, the same dashboard light that alerts you to low tire pressure levels will power on when somethings amiss w/ the TPMS itself. In some cases a reset can fix the issues, but other times, a Tire Pressure Monitoring System Sensor replaCement is required. Unless youre a seasoned at-home mechanic, changing your own Tire Pressure Monitoring System Sensor can be a tricky repair to do at-home. It typically involves allowing the tire to become flat, unseating the tire bead From the Wheel to remove the bad sensor, and mounting the replaCement one. When the new sensor is in place, your tires need to be reinflated and, (usually) balanced again, to boot! Additionally, depending on your Nissan model and year, you will likely need to take additional steps to calibrate the sensor. Whether you choose to go to your local Nissan service center for Tire Pressure Monitoring System Sensor replaCements, or you want to try performing the replaCement at home, one thing is undeniable: getting authentic Tire Pressure Monitoring System Sensor parts is your best bet. Find Nissan parts and accessories that fit your Nissan Pathfinder 2005-2007, Nissan Maxima 2007-2007, Nissan Titan 2005-2007, Nissan Xterra 2006-2007, Nissan Armada 2005-2008, Nissan Frontier 2005-2007, Nissan Sentra 2007-2008, and Nissan Quest 2005-2007 now. See the What This Fits tab for more details.