What are the three main types of TPMS relearn?
Short answer: Most vehicles use a stationary relearn triggered at each wheel with a tool, an automatic relearn that happens while driving, or an OBD relearn that writes sensor IDs through the diagnostic connector.
A relearn tells the vehicle which sensor IDs belong to it and, on some systems, which wheel position each sensor is in. The method depends on the vehicle.
A stationary relearn puts the vehicle into learn mode, often through the ignition, key fob or dash menu, and then each sensor is triggered in a set order with a TPMS tool. An automatic relearn requires driving for a period above a certain speed while the vehicle detects the new sensors on its own. An OBD relearn uses a TPMS tool to read sensor IDs and then writes them to the vehicle's module through the diagnostic connector.
Check the procedure for the exact vehicle in your TPMS tool or service information. Set tire pressures to the placard before starting, and confirm the light goes out after the relearn.
Tools used for this job
General guidance only. Follow the vehicle and tool manufacturer's procedures, and confirm vehicle coverage on the tool maker's list before buying.