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How to Reset the Right Tire Pressure Monitor on a Nissan Altima
The five generations of the Nissan Altima present drivers with a flashy, mid-sized vehicle that is just as reliable as it is fun to drive, but on the dashboard, the wide collection of check and warning lights and other technical specifications can seem a little confounding. One particular problem that seems to cause drivers the most trouble occurs with the Nissan Altima tire pressure monitor. as when there is a malfunction within the Tire Pressure Monitoring System (TPMS) of the Nissan Altima or the vehicle simply has low pressure in its tires, drivers are greeted with the low-pressure warning light. Getting this light to turn off can be a little tricky, but with a few specific tools and an ability to navigate the TPMS system, drivers with no mechanical experience whatsoever can reset their Altima tire pressure monitor.
When the telltale light comes on and indicates under-inflated Nissan Altima tires. drivers should stop the car as soon as possible and adjust the tire pressure on all four tires using a tire pressure gauge. The proper pressure for these tires varies between different Altima models, and to find the specific numbers, drivers can check the recommended cold tire pressure shown on the Tire Load and Information label located on the driver door opening. After drivers inflate their tires, they must then drive their Altima at speeds above 16 mph to activate the TPMS. If there are no further problems, the telltale light should simply turn off.
Methods of Resetting Tire Pressure Monitor Malfunctions
Malfunctions within the TPMS system can be much more difficult to reset, and according to the Nissan Altima owner's manual, this situation recommends that drivers take their Altima into a Nissan dealer for a check-up. However, with a little understanding of the various parts associated with a Nissan TPMS system, amateur mechanics can easily reset their system by programming the TPMS sensor identifications with the different sensor monitors on all tires. For this procedure, drivers need to use a Nissan scan tool or equivalent model, as well as a J-45295 activation tool.
After replacing Nissan Altima tires or adding new sensors to the tires, the first step in resetting the TPMS is to wake up the wheel sensor. To start, simply turn the ignition to the "ON" position and push the transmitter activation tool against one of the tires. Then, press and hold the activation button for around 5 seconds and the hazard lamps should flash, indicating a sensor ID registration into the TPMS. Repeat this for the left front, right front, right rear, and left rear tires, in that specific order, and after the vehicle has assigned the sensor IDs for all tires, the hazard lights should flash again. Drivers should then drive the vehicle at speeds faster than 16 mph to verify that the low-pressure warning light turns off.
If the low-pressure warning light is still on after adding tire pressure and completing the sensor wake up procedure, it is important to undertake a sensor reprogramming procedure. Fortunately, drivers can reprogram their sensors with or without the J-45295 activation tool, but each procedure requires the Nissan scan tool or equivalent.