Understanding TPMS Relearn on the SONG PRO DM-I
The SONG PRO DM-I (BYD Song Pro DM-i) comes factory-equipped with a direct TPMS system. Each wheel has a sensor that broadcasts tire pressure and temperature data to the vehicle’s ECU. When you replace a sensor, rotate tires, or swap wheels, the ECU needs to “learn” the new sensor IDs and their positions. This is called a TPMS relearn.
The good news: BH-Sens 433MHz sensors (like the BL-ST-062 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits BYD, Denza, Fangchengbao, Toyota, Young | OE# 4260703011, SA3HE3609200B, SFH3609200B) are pre-programmed with OE-compatible IDs, so no sensor programming is needed. You only need to perform the vehicle-side relearn.
Three Relearn Methods for SONG PRO DM-i
The SONG PRO DM-i supports three relearn methods. Choose based on your tools and preference.
1. Auto Relearn (Drive-Based)
This is the simplest method — no tools required. The vehicle automatically detects sensor IDs as you drive.
Steps:
- Park the vehicle safely. Turn the ignition off.
- Install the new BH-Sens sensors or rotate the tires.
- Start the engine and drive the vehicle above 25 km/h (15 mph) for at least 10 minutes.
- The ECU will automatically assign sensor IDs to wheel positions as it receives signals.
- A TPMS warning light may flash during the process and turn solid when complete.
Note: Auto relearn works best on straight roads with minimal interference. It may take longer if you drive in stop-and-go traffic.
2. OBD Relearn (Using a TPMS Programming Tool)
For a faster, controlled relearn, use an OBD-compatible TPMS tool. This method requires a tool that supports BYD / SONG PRO DM-i protocols.
Steps:
- Turn the ignition on (engine off or running, depending on tool instructions).
- Connect the TPMS tool to the OBD-II port (located under the dashboard, driver’s side).
- Select “TPMS Relearn” or “Sensor ID Relearn” on the tool.
- Follow the tool’s prompts: it will send a command to the ECU to enter relearn mode.
- The tool will then trigger each sensor (usually by holding it near the valve stem or using a low-frequency trigger). The horn may beep or lights flash to confirm.
- Once all four sensors are learned, the tool will exit relearn mode.
Tip: If using a universal OBD tool, ensure it lists BYD / SONG PRO DM-i compatibility. Some tools also support activation from outside the vehicle via a wireless trigger.
3. Stationary Relearn (Magnet Method)
This is a manual method used on some older BYD models. It works on the SONG PRO DM-i but is less common.
Steps:
- Turn the ignition off. Ensure all doors are closed.
- Locate the TPMS reset button (check your owner’s manual — it’s often under the steering wheel or in the glovebox).
- Turn the ignition to ON (engine off). Press and hold the TPMS reset button for 3–5 seconds. The TPMS light will blink twice, indicating relearn mode.
- Using a strong magnet (e.g., a TPMS activation tool or a rare-earth magnet), hold it against the valve stem of the left front tire for 10 seconds. The horn will beep once.
- Repeat for right front, right rear, and left rear tires in that order.
- After the last beep, turn the ignition off and then on again. The TPMS light should go out.
Important: Not all SONG PRO DM-i trims have a physical TPMS reset button. Check your vehicle’s manual first. If no button exists, use the auto or OBD method.
Fitment Table for BH-Sens BL-ST-062 Sensor
| Parameter | Details |
|---|---|
| Brand | BH-Sens (Baolong Technology) |
| Frequency | 433MHz |
| OE Numbers | 4260703011, SA3HE3609200B, SFH3609200B, SGH3609200B, SGHA3609200B |
| Type | Clamp-in, Pre-programmed |
| Compatible Makes | BYD, Denza, Fangchengbao, Toyota, Young |
| Vehicle Example | SONG PRO DM-i (2021–present) |
Recommended Part
For a reliable replacement, use the BL-ST-062 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits BYD, Denza, Fangchengbao, Toyota, Young | OE# 4260703011, SA3HE3609200B, SFH3609200B. It is pre-programmed to match the original sensor IDs, so no programming tool is needed — just install and perform one of the relearn procedures above.
FAQ
How do I know if my SONG PRO DM-i needs a TPMS relearn?
If the TPMS warning light stays on after sensor replacement or tire rotation, you need a relearn. Also, if you see “Tire Pressure Monitor Fault” or “Service TPMS” on the dashboard, the ECU has lost communication with one or more sensors. A relearn will re-sync them.
Can I use a universal TPMS sensor on the SONG PRO DM-i?
Yes, but only if the sensor operates at 433MHz and is pre-programmed with the correct OE IDs. The BH-Sens BL-ST-062 is a perfect match. If you use a programmable sensor, you’ll need a TPMS tool to clone the original sensor ID or program a new one before the relearn.
How long does the auto relearn take?
Usually 10–20 minutes of driving above 25 km/h. If you drive on rough roads or in heavy traffic, it may take longer. The TPMS light will flash during the process and stabilize when the relearn is complete.
Can I do an OBD relearn without a professional TPMS tool?
You need a TPMS-specific OBD tool that supports BYD protocols. Generic OBD scanners will not work. Some aftermarket tools (like Autel, Bartec, or ATEQ) offer BYD coverage. If you don’t have one, the auto relearn method is free and usually effective.