Where is the TPMS sensor located?

The Tire Pressure Monitoring System (TPMS) sensor is typically located inside the wheel well, mounted on the wheel rim or the tire valve stem. The TPMS sensor monitors the air pressure in each of the vehicle's tires and transmits this information to the vehicle's onboard computer system.

Understanding the TPMS Sensor Location

The TPMS sensor is a crucial component of modern vehicles, designed to alert drivers when the tire pressure in one or more tires falls below the recommended level. The sensor is strategically placed to accurately measure the air pressure in each tire and relay this data to the vehicle's computer system. The location of the TPMS sensor can vary depending on the make and model of the vehicle, but it is typically found in one of the following places:

• Mounted on the wheel rim, inside the tire


• Attached to the tire valve stem


• Integrated into the tire pressure valve

The TPMS sensor is usually located in a position that allows it to monitor the air pressure in the tire without being exposed to the elements or potential damage from road debris. This ensures the sensor can accurately measure the tire pressure and transmit the data to the vehicle's computer system.

Importance of Proper TPMS Sensor Location

The location of the TPMS sensor is crucial for the system to function correctly. If the sensor is not positioned correctly, it may not be able to accurately measure the tire pressure, leading to false readings or the system not detecting a problem. Proper sensor placement ensures the TPMS can effectively monitor the tires and provide timely alerts to the driver when tire pressure is low.

Maintaining the TPMS sensor's location is also important for the overall performance and longevity of the system. If the sensor is damaged or displaced, it may need to be repaired or replaced, which can be a costly and time-consuming process for vehicle owners.

Where is the TPMS reset button?

The TPMS reset button is typically located under the steering wheel, on the dashboard, or inside the glove box. If your car has a touchscreen display, the reset function is often found in the "vehicle settings" or "TPMS calibration" menu. For specific locations, check your owner's manual or look for a button with the TPMS icon (a tire with an exclamation mark). 
You can watch this video to learn how to reset the low-tire-pressure indicator on a display audio model: 1mHondaYouTube · May 15, 2019
Common locations

• Under the steering wheel: Look for a button on the left side of the steering column. 
• Glove box: Some vehicles have a hidden button located inside the glove box. 
• Dashboard: The button might be on the side of the dashboard or integrated into the instrument panel. 
• Touchscreen display: Many modern vehicles have the option in the main menu, often under "Vehicle Settings" or a dedicated "TPMS" menu. 

How to reset

1. Adjust tire pressure: Ensure all tires are inflated to the correct pressure, which is usually listed on a sticker in the driver's side door jamb. 
2. Find the reset button: Locate the physical button or navigate to the TPMS menu on the dashboard's infotainment screen. 
3. Press and hold: Press and hold the reset button until the TPMS light flashes three times, or follow the on-screen instructions to select "calibrate". 
4. Drive the vehicle: Drive for at least 5-10 minutes to allow the system to reset. 

This video demonstrates how to reset the TPMS on a Chevy Equinox: 59sPro Tips PlusYouTube · May 4, 2024

Can AutoZone fix TPMS sensors?

At AutoZone, we carry replacement TPMS sensors for most makes and models. And if you need help resetting the TPMS light, we can offer helpful advice or refer you to a shop in our professional network.

How do I know which TPMS sensor is bad?

You can tell which TPMS sensor is bad by using a TPMS diagnostic tool to scan each wheel; the sensor that doesn't respond or shows an incorrect reading is likely the faulty one. Alternatively, some vehicles have a manual relearn procedure where you deflate each tire, and the one that doesn't send a signal is the one that needs replacement. A malfunctioning sensor might also trigger a warning light, even with correct tire pressure, or cause a noticeable difference in pressure readings when compared to a manual gauge. 
Using a TPMS diagnostic tool

• Obtain a dedicated TPMS scan tool, available at auto parts stores. 
• Select the correct vehicle make, model, and year on the tool. 
• Hold the tool near the valve stem of one wheel and activate the test. 
• Compare the pressure reading on the tool to the actual pressure of the tire. A mismatch can indicate a bad sensor. 
• Repeat this process for all four wheels to find the faulty sensor. 

Using a manual relearn procedure 

• Some vehicles allow for a manual relearn mode that can identify a failing sensor. 
• Find the specific relearn procedure for your car, often in the owner's manual. A common method involves putting the car in program mode, then letting air out of each tire one by one. The sensor that doesn't signal (often with a beep or a change on the dashboard) is the faulty one. 

Other indicators

• Inaccurate readings: If the sensor is sending an incorrect pressure reading that is different from what a manual gauge shows for that tire, that sensor is likely bad. 
• Malfunctioning warning light: A TPMS warning light that illuminates when all tires are properly inflated can signal a faulty sensor. 
• Visual damage: Inspect the sensor itself for any visible signs of damage, such as a bent stem. 
• Battery failure: A common reason for a faulty sensor is a dead battery, which can lead to the warning light or incorrect readings. 

Can I replace the TPMS sensor myself?

Yes, you can replace a TPMS sensor yourself, but it requires some specialized tools and knowledge of car maintenance to avoid damaging the wheel or tire, and the new sensor will need to be programmed to your car's computer. The process involves removing the wheel, breaking the tire bead, swapping the old sensor for a new one, and then re-inflating and reprogramming the sensor. 
Tools and materials you will need

• New TPMS sensor(s)
• Jack and jack stands for safety
• Tire iron/lug wrench
• Bead breaker (or a clever manual method)
• Torque wrench
• TPMS programming tool
• Soapy water or lubricant
• Valve core removal tool
• Gloves and eye protection 

Step-by-step guide

1. Safety First: Park on a flat surface, engage the parking brake, and use jack stands to safely lift and support the vehicle. 
2. Remove the wheel: Loosen the lug nuts, jack up the vehicle, and then remove the wheel. 
3. Deflate the tire: Use a valve core removal tool to let all the air out of the tire. 
4. Break the tire bead: Use a bead breaker tool or a manual method (like using a jack with a piece of wood) to separate the tire bead from the wheel rim. 
5. Remove the old sensor: 
   • Push the tire bead away from the rim to expose the sensor. 
   • Unscrew the nut that holds the sensor to the valve stem. 
   • Push the old sensor out and away from the inside of the wheel. 
6. Install the new sensor: 
   • Apply soapy water or lubricant to the new sensor's rubber grommet to help it slide into place. 
   • Slide the new sensor into the valve stem opening from the inside of the wheel. 
   • Secure it with the new nut and tighten it to the manufacturer's specified torque using a torque wrench. 
7. Reseat the tire bead: 
   • If you broke the bead manually, you may need to bounce or use a strap to help reseat the bead. 
   • Inflate the tire while checking for leaks with soapy water. 
8. Program the new sensor: Use a TPMS programming tool to "relearn" the new sensor's ID to your car's computer. This is a critical step to turn off the warning light. 

Important considerations

• Programming: Without a TPMS programming tool, you can have a tire shop do this for you, but there may be a charge. 
• Rebalancing: Replacing a sensor can sometimes require rebalancing the tire to ensure proper handling, but if the new sensor is close in weight to the old one, it may not be necessary. 
• Spare tire: If your vehicle has a spare tire with a TPMS sensor, you may need to replace that one as well and program it. 
• Difficulty: Replacing TPMS sensors can be time-consuming and challenging, especially with low-profile tires, so be prepared to take your time.