It's common for drivers to forget to check the air pressure on their tires. Therefore, may modern vehicles have air pressure sensors built right in. These sensors warn the driver when the air pressure of the tires drops below a certain point, which is measured in pounds per square inch, or PSI. When the tires are changed or rotated, the air pressure sensor must be reset. The sensors vary between each vehicle make and model, but the steps for resetting the sensors are generally the same.
Check the pressure of each tire using a tire gauge. Remove the cap on the tire's air nozzle. Insert the end of the tire gauge into the tire nozzle. Read the measurement on the tire gauge. The PSI of a tire will depend on the make and model of your automobile. Each tire should be inflated to the correct PSI.
Turn the car off by adjusting the ignition key to the "Off" position.
Press the brake pedal and release it immediately.
Turn the ignition key between "Run" and "Off" three times ending in the "Run" position.
Apply pressure to the break pedal and release it immediately.
Turn the ignition key to "Off" once again.
Turn the ignition key from "Off" to "Run" three times. End with the key at "Run".
Look at your dashboard console. A light will flash with a message telling you that you have reset your air pressure sensors. Your horn will also beep at this time.
Turn the key to "Off". If no error messages appear in your dashboard console and your horn does not beep, you have completed the air sensor adjustment correctly. If you receive an error message and the horn beeps, repeat the entire process.
