My RAV4 is almost 4 years old, and it could be the time to start working on it with any error!!

Firstly, I found TPMS light on, after inflating all 4 tires, the light stays on!

Here, I find a forum site by Sam Leman on Toyota. Of course, it covers my RAV4.

Here are some ways to reset it:

	
Drive at or above 50 mph for 10 minutes. This can cause the tire pressure sensor to reset the next time you turn on the car.

	
With the vehicle off, turn the key to the “on” position, but don’t start the car. Hold the TPMS reset button until the Toyota tire pressure sensor blinks three times, then release it. Start the car, and wait 20 minutes for the sensor to refresh. The TPMS reset button is usually located beneath the steering wheel. If you are unable to find it, refer to your vehicle’s owner’s manual.

	
Inflate all tires to 3 PSI over their recommended amount, then deflate them completely. Be sure to include the spare tire, as it may have a sensor as well. Once they’re all deflated, re-inflate to the recommended tire pressure.

	
With the vehicle off, disconnect the positive battery cable. Turn the car on, and honk the horn for about three seconds. This will discharge any power still stored in the vehicle. Then, reconnect the battery.