Reset TPMSS through cars menu

Use this if you're installing winter wheels/tires that have sensors already installed, or even if you are just doing a tire rotation. Not sure if this has been posted before. I tried searching but didn't see it posted anywhere. No need to go and buy the TPMS learning tool.

1) Make sure your tiresare inflated to the recommended psi. Mine is 40psi.

2) Turn ignition to the on position. If you have a push button start, push the start button without pressing the brake pedal.

3) Push the hazard light button 6 times. The horn should honk and you should see "Train left front tire" in the LCD display between the tach and speedo.

4) Release air pressure in the front left tireuntil you hear the horn honk. The LCD display should now read "Train right front tire".

5) Release air pressure in the right front tire until you hear the horn honk.

6) Repeat for the the right rear tire, and then the left rear tire.

7) You should now see "Training Complete" in the LCD display.

8) Fill your tiresback up to the recommended pressure.

Enjoy!

Follow these step to reset the TPMS:
1. Park on a paved surface with no slope
2. Get inside the car and put the parking brake on
3. Turn the key to the ON position
4. Press and hold the INFO and RESET button together for a few seconds
5. Scroll and get to the tire service monitor menu and press and hold the reset button for three seconds
6. Go to the Tire Learn menu and press and hold the reset button until you hear two beeps and it will say tire learn ON
7. Move out of the car and start decompressing a bit-start from the driver side tire and move clockwise. The car will beep everytime it detects a change in tire pressure
8. All Tires will now register, and the digital display inside will tell you the exact PSI on each tire
9. Use a mobile compressor to inflate the tire to the recommended PSI or go to the nearest tire shop.

By operating the tire pressure warning reset switch, the tire pressure warning ECU can be set to issue a warning at an inflation pressure that corresponds to the standard pressure of tires .Therefore, you must set the warning threshold to the proper value in order to comply with the local regulations .Operate the tire pressure warning reset switch only after the inflation pressures of all tires have been adjusted on the vehicle.To initialize the system, press and hold the tire pres- sure warning reset switch for 3 seconds or longer with the ignition switch in the ON position. When the system receives the
initialization signal, the warning light blinks 3 times (1 second on, 1 second off). During initialization, the tire pressure warning valve and transmitter measures the inflation pres sure of the tire, and registers the signals that are transmitted into the tire pressure warning ECU at a frequency of once per minute. The initialization process is completed when signals from all the tires have been received. It takes a few minutes .

Tire size Inflation Front Inflation Rear
P 195/65 R15 89S 30 psi 30 psi
195/65 R15 91H

P 205 /55 R16 89H 32 32 psi
P 215/45 R17 87W
205/55 R16 91V

The LOW TIRE PRESSURE warning light will come on when the pressure is 25% below the manufacturer's recommended pressure. If I recall correctly, the 2007 Sonata has a manufacturer's recommended tire pressure of 30 psi. There is a tire label (sticker) on the inside driver's door jamb ('B' Pillar which tells you what the manufacturer's recommend tire inflation pressure should be. Once you have that value, you can calculate 25% of that & find the pressure at which the warning light should come on. NOTE: The TPMS (Tire Pressure Monitoring System) does not continually nor constantly scan the sensors in the wheels for this information - once every 3 to 10 minutes.

Hi, if you see this TPMS icon illuminated, it means your vehicle has a low tire. STOP, and check the inflation pressure in your tires. This warning light will come on if tire pressure in any of your tires falls more than 25% below the recommended inflation pressure (refer to your owners manual, or the tire inflation decal in the glovebox, driver door pillar or gas tank filler cap lid for tire inflation pressure recommendations).
The TPMS warning light should come on for about one second when the ignition key is first turned on for a bulb check. It should then go out if all of the tires are properly inflated. If it does not go out, or it comes on while driving, you have a low tire.
If the TPMS warning light is flashing, it indicates a fault has been detected in the TPMS system that will require further diagnosis. Common faults include a bad tire pressure sensor, a defective keyless entry receiver module, a fault in the TPMS or body control module (BCM), or wiring problems in the keyless entry/TPMS/BCM circuit.

The yellow exclamation mark appears when your TPMS, AKA tire pressure monitoring system picks up on a low-pressure tire. It means that your tires aren't inflated to the recommended pressure. A simple fix is to inflate to the required PSI, and if the problem does not go away, drive down to the nearest garage, as you may have punctured tire at your hands.

TIRE PRESSURE MONITOR SYSTEM
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. If your vehicle has this feature, sensors are mounted on each tire and wheel assembly, except the spare tire. The TPMS sensors monitor the air pressure in your vehicle's tires and transmit tire pressure readings to a receiver located in the vehicle.

The TPMS is designed to alert the driver, if a low tire pressure condition exists. This system also allows the driver to check tire pressure levels using the Driver Information Center (DIC).

When a low tire pressure condition is detected, the TPMS displays the "CHECK TIRE PRESSURE" warning message on the DIC, and at the same time illuminates the low tire pressure warning symbol.

You may notice, during cooler weather conditions, that the tire pressure monitor light, located on the instrument panel cluster, and the "CHECK TIRE PRESSURE" message will appear when the vehicle is first started and then turn off as you start to drive the vehicle. This could be an early indicator that the tire pressures are getting low and need to be inflated to the proper pressure.

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated.

Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.

Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

The "CHECK TIRE PRESSURE" warning message and low tire pressure light (telltale) will appear at each ignition cycle until the tires are inflated to the correct inflation pressure.

The Tire and Loading Information label (tire information placard) shows the size of your vehicle's original tires and the correct inflation pressure for your vehicle's tires when they are cold.

Your vehicle's TPMS can alert you about a low tire pressure condition but it does not replace normal tire maintenance.

NOTICE: Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors.

RESETTING THE TPMS IDENTIFICATION CODES
Each TPMS sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPMS sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire's air pressure. The sensors are matched to the tire/wheel positions in the following order: LF TIRE (left front tire on the driver's side of the vehicle), RF TIRE (right front tire on the passengers side of the vehicle), RR TIRE (right rear tire on the passengers side of the vehicle), and LR TIRE (left rear tire on the driver's side of the vehicle).

You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions the matching process stops and you will need to start over.

The TPMS sensor matching process is outlined below:

1. Set the parking brake.
2. Turn the ignition switch to "RUN" with the engine off.
3. Turn the headlamp switch from "OFF" to the parking lamps setting four times within three seconds. A double horn chirp will sound and the TPMS low tire warning light will begin to flash. The double horn chirp and flashing TPMS warning light indicate that the TPMS matching process has started. The TPMS warning light should continue flashing throughout the matching procedure. The "SERVICE TIRE MONITOR" message will be displayed on the Driver Information Center (DIC).
4. Start with the driver's side front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPMS sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with Step 1. To let air-pressure out of a tire you can use the pointed end of the valve cap, a pencil-style air pressure gage or a key.
6. Proceed to the passenger's side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger's side rear tire, and repeat the procedure in Step 5.
8. Proceed to the driver's side rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPMS warning light is still flashing. If it is, turn the ignition switch to LOCK to exit the sensor matching process. If the TPMS warning light is not flashing, the five minute time limit has passed and you will need to start the process over beginning with Step 1.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label.
11. Put the valve caps back on the valve stems. The spare tire does not have a TPMS sensor. If you replace one of the road tires with the spare, the "CHECK TIRE PRESSURE" message will be displayed on the DIC screen. This message should go off once you re-install the road tire containing the TPMS sensor. The "SERVICE TIRE MONITOR" message is displayed when the TPMS is malfunctioning. One or more missing or inoperable TPMS sensors will cause the service tire monitor message to be displayed.

Check that all your tires are inflated to the specification recommended by the vehicle manufacturer or higher. There is no TPMS warning for "overinflated" tires, because there is far less danger per NHTSA studies than "underinflated" tires.

You can safely inflate your tires to the max pressure rating on the sidewall. The pressure listed by your vehicle manufacturer is a compromise between noise, tire life, and ride comfort.

Try installing more air, up to 35 PSI, and see if the light goes out. If it does not, you may have a faulty TPMS sensor, which is inside the tire, attached to the tire valve. This will require a qualified service technician to further diagnose and repair.

The first step in diagnosis would be to make sure all the sensors are calibrated to the car which requires a tool that some tire dealers & car dealers have.

You can reset the TPMS system on your Toyota Highlander. There are instructions in the owner's manual on how to do so. However, resetting the system without checking the cold-air inflation of the tires is not necessarily solving the problem. The recommended tire pressure inflation sticker is located on the driver-side door frame. On the Highlander, it calls for 30 pounds per square inch (psi) of tire pressure per tire, including the full-sized spare. If the Highlander had a donut spare tire, it will not have a TPMS sensor and subsequently will not effect the TPMS system one way or the other. To reset the TPMS system in the Highlander, there is a reset button under the driver-side dashboard that needs to be held for a period of time (a few seconds) while the ignition key is in the "key-on/engine-off" mode. The TPMS warning light will blink rapidly for a few more seconds, and the system will reset itself. Refer to the manual for the exact procedure. If the TPMS warning light reoccurs, have the system or tires checked by a professional. Good luck and hope this helps, keep me posted. Be glad to help.