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TPMS ensures safety and optimal tire performance by monitoring tire pressure in real-time, alerting drivers if there’s a significant drop or change.
When replacing or rotating tires, or after certain repairs, a TPMS relearn procedure is often necessary.
This process ensures the sensors communicate accurately with the vehicle’s TPMS module.
In this guide, we explore the distinctions between the OBD, Auto, and Stationary TPMS relearns, so you can choose the right method for your needs.
What Is TPMS Relearning and Why Is It Important
TPMS relearning is the process of resetting or calibrating the sensors in the tire pressure monitoring system.
Whenever you install new tires, replace a TPMS sensor, or rotate the tires, the TPMS needs to relearn the sensors' positions to provide accurate readings.
1. OBD TPMS Relearn
OBD TPMS relearn is a method involving direct communication between the vehicle’s TPMS sensors and the TPMS control module via the OBD-II port.
This port is typically located under the dashboard and allows diagnostic tools to communicate directly with the vehicle’s electronic systems.
Advantages of OBD TPMS Relearn
Direct Communication: OBD relearn connects the car diagnostic tool to the vehicle’s OBD-II port, enabling accurate data transfer from the TPMS sensors to the TPMS module.
Quicker Process: With an OBD relearn, the process is generally faster than other methods because it communicates directly with the vehicle’s computer.
Ideal for Sensor Replacement: OBD relearn is ideal when you’re installing a new TPMS sensor, as it immediately syncs the new sensor’s data with the vehicle.
Steps for OBD TPMS Relearn
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Connect the ANCLE V6 pro car scan tool to the vehicle’s OBD-II port.
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Use the tool to activate each TPMS sensor individually.
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The tool then transfers the sensor data directly to the TPMS control module, updating the vehicle with the new sensor positions.
Related Reading: How Much Does It Cost To Replace A TPMS Sensor?
2. Auto TPMS Relearn
Auto TPMS relearn is a hands-free process that relies on the vehicle’s TPMS module to automatically recognize the sensors after certain driving conditions are met. This relearn method does not require any specialized tool or manual input.
Advantages of Auto TPMS Relearn
Hands-Free Process: The system automatically learns the TPMS sensor positions after a specific driving pattern, which varies by vehicle make and model.
No Special Tools Required: Auto relearn doesn’t require a diagnostic tool, making it accessible for users without professional equipment.
Ideal for Tire Rotations: This method works well for basic tire rotations, as the system can detect position changes autonomously.
Steps for Auto TPMS Relearn
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Install the new or rotated tires as usual.
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Drive the vehicle at a specific speed (often between 15-25 mph) for a certain distance, following manufacturer instructions.
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The vehicle’s TPMS module will automatically detect the sensors’ new positions and recalibrate accordingly.
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3. Stationary TPMS Relearn
The Stationary TPMS relearn method, as the name suggests, is performed while the vehicle is stationary, and it involves using a TPMS activation tool without the need for driving.
Advantages of Stationary TPMS Relearn
Ideal for In-Garage Relearning: Because it doesn’t require driving, this relearn method is perfect for performing a relearn in a workshop or home garage.
Control Over Activation: The stationary method gives technicians control over the relearn process, as it involves manually activating each sensor with a relearn tool.
Works on Most Vehicles: The stationary method is versatile and can be used on a variety of vehicles, especially those that require direct manual sensor activation.
Steps for Stationary TPMS Relearn
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Set the vehicle in relearn mode. This often requires a sequence of actions, such as turning the ignition on and off or pressing specific dashboard buttons.
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Use the TPMS activation tool on each tire, following the vehicle manufacturer’s instructions to activate each sensor.
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Once all sensors are activated, the TPMS module should recognize the sensors’ locations and update accordingly.
|
Relearn Type |
Ideal For |
Tool Requirement |
Process |
|---|---|---|---|
|
OBD TPMS Relearn |
New sensor installation, professional settings |
Requires OBD-II tool |
Connects via OBD-II port, communicates directly |
|
Auto TPMS Relearn |
Tire rotations, general maintenance |
No tools required |
Automatic after driving specific distance/speed |
|
Stationary TPMS Relearn |
In-garage relearn, manual activation |
Requires TPMS activation tool |
Sensors activated manually while vehicle is stationary |
Key Considerations When Choosing a TPMS Relearn Method
Choosing the right TPMS relearn method depends on various factors, including the type of vehicle, availability of tools, and the reason for the relearn. Here are some additional considerations:
Vehicle Compatibility: Not all vehicles support every relearn method, so it’s essential to consult the owner’s manual or manufacturer guidelines.
Sensor Type: Some sensors may only support certain relearn methods, especially older models that might not be compatible with automatic relearning.
Frequency of Use: For frequent tire changes, using OBD or stationary methods may be more efficient than relying on auto relearn.
FAQs
What is the fastest TPMS relearn method?
The OBD TPMS relearn is generally the fastest as it involves direct communication with the vehicle’s computer via the OBD-II port.
Can I use Auto TPMS relearn after replacing a sensor?
Auto TPMS relearn may not work for sensor replacements. It is best suited for tire rotations and situations where the TPMS sensors do not need recalibration.
How often should I perform a TPMS relearn?
A TPMS relearn should be performed after tire rotations, new sensor installations, or any significant adjustments affecting tire positioning.
