Why TPMS Relearn Matters for Your EMGRAND
When you install new TPMS sensors — whether after a tire rotation, sensor replacement, or seasonal wheel swap — the vehicle’s ECU needs to “learn” the unique IDs of each sensor. Skipping this step means the TPMS light stays on, and you won’t get accurate pressure readings.
For EMGRAND vehicles (part of the Geely family), the relearn procedure is straightforward but requires the right approach. This guide covers all three methods, with tools you likely already have or can buy affordably.
EMGRAND TPMS Sensor Fitment Quick Reference
Before starting, confirm your sensor compatibility. The BL-ST-036 | BH-Sens 433MHz TPMS Tire Pressure Sensor fits these EMGRAND/Geely applications:
| Vehicle Model | Year Range | Frequency | OE Part Reference |
|---|---|---|---|
| Emgrand EC7 | 2014–2020 | 433MHz | 01725271 |
| Emgrand X7 | 2015–2021 | 433MHz | 01725271 |
| Emgrand GL | 2016–2022 | 433MHz | 01725271 |
| Geely Boyue / Emgrand GS | 2016–2021 | 433MHz | 01725271 |
| Geely Coolray (Emgrand S) | 2019–2023 | 433MHz | 01725271 |
Note: Always verify your specific VIN or check your owner’s manual for exact year-to-year variations.
Method 1: Automatic Relearn (Easiest, No Tools)
Most modern EMGRAND models support automatic relearn. No special equipment needed — just drive.
Step-by-step:
- Park safely and ensure all tires are inflated to the recommended pressure (typically 32–36 PSI).
- Start the engine and drive the vehicle above 20 mph (32 km/h) continuously for 10–15 minutes.
- The TPMS system will automatically detect the new sensor IDs during this drive cycle.
- The TPMS light should turn off after the drive. If it stays on, try a longer drive (up to 30 minutes) or switch to another method.
Pros: Free, no tools. Cons: Takes time, may not work on older EMGRAND models (pre-2016).
Method 2: OBD Relearn (Fastest, Most Reliable)
This is the recommended method for both DIYers and shops. You’ll need a TPMS programming tool that supports OBD relearn for Geely/EMGRAND vehicles.
Tools needed:
- OBD TPMS tool (e.g., Autel TS508, MaxiTPMS TS601, or any tool with Geely/EMGRAND coverage)
- Vehicle’s OBD-II port (located under the dashboard, driver’s side)
Step-by-step:
- Turn ignition to ON position (engine off). Do not start.
- Plug the TPMS tool into the OBD-II port.
- Select “EMGRAND” or “Geely” on the tool. Choose the relearn option (often labeled “OBD Relearn” or “Auto Learn”).
- Follow the tool’s on-screen prompts — it will typically instruct you to activate each sensor by placing the tool near the tire valve.
- Once all four sensors are activated, the tool sends the IDs to the ECU via the OBD port.
- Turn ignition OFF, then start the engine. The TPMS light should go out immediately.
Time required: 5–10 minutes. Success rate: ~99%.
Method 3: Stationary Relearn (Using a Magnet)
Some EMGRAND models (especially older ones) allow relearn using a TPMS activation tool or a strong magnet placed near the sensor while the vehicle is stationary.
Tools needed:
- TPMS sensor activator (like a Schrader EZ-Sensor activator) or a strong bar magnet
- Tire pressure gauge
Step-by-step:
- Inflate all tires to the correct pressure.
- Turn ignition to ON (engine off).
- Using the TPMS tool or magnet, activate each sensor in a specific order (usually LF→RF→RR→LR). Hold the tool against the tire sidewall near the valve stem for 3–5 seconds per sensor.
- The horn may chirp or the hazard lights may flash to confirm each sensor is learned.
- After the fourth sensor, the system exits learning mode. Start the engine — the TPMS light should turn off.
Note: The exact activation sequence varies by year. If no response after 2 minutes, consult your EMGRAND service manual.
Recommended Part
If you’re replacing faulty or dead TPMS sensors, use the pre-programmed BL-ST-036 | BH-Sens 433MHz TPMS Tire Pressure Sensor. It comes ready to install — no programming required before the relearn procedure. The clamp-in design fits standard EMGRAND wheels, and it’s a direct OE replacement for part number 01725271.
Common Mistakes to Avoid
- Forgetting to check battery voltage: Low sensor batteries cause false readings. Replace sensors every 5–7 years.
- Skipping the relearn after tire rotation: Even if sensors are functional, rotation changes their positions — the ECU needs to know which sensor is at which corner.
- Using wrong frequency: EMGRAND uses 433MHz. Don’t mix with 315MHz sensors (common on some Asian and US vehicles).
FAQ
Can I drive with the TPMS light on after installing new sensors?
Yes, but you won’t get accurate pressure data, and the light will remain on. The vehicle is safe to drive as long as tire pressure is correct manually. Perform the relearn as soon as possible to restore full TPMS functionality.
How long does an OBD TPMS relearn take on an EMGRAND?
Expect 5–10 minutes total. Most of the time is spent walking around the vehicle to activate each sensor. The OBD tool handles the ID registration in under 30 seconds.
Do I need to remove the sensor from the tire to activate it during relearn?
No. All three methods work with the sensor installed in the wheel. Just place the tool or magnet near the valve stem on the outside of the tire.
Will the BL-ST-036 sensor work on my 2019 Emgrand X7?
Yes, the BH-Sens BL-ST-036 (433MHz, OE 01725271) is a direct fit for the 2015–2021 Emgrand X7. It’s pre-programmed and clamp-in compatible. After installation, perform the OBD relearn procedure described above for best results.