The TPMS warning light after a tyre change or cold snap does not always mean you need a new sensor. Often pressures are wrong or the system needs a relearn. This guide covers UK reset steps by system type - when a drive cycle is enough and when you need a sensor from our TPMS range.
Step 1: Check pressures cold
Use the sticker on the driver door jamb (not the tyre sidewall max). Inflate all four tyres to the recommended cold pressure - usually checked before driving or after the car has stood for a few hours. A light that came on overnight in winter often clears once pressures are correct.
Solid vs flashing light
| Light behaviour | Likely cause | First step |
|---|---|---|
| Solid | Low pressure or reset needed after correction | Inflate cold, then reset via menu or drive cycle |
| Flashing then solid | Failed, missing, or wrong-frequency sensor | Check each wheel sensor; OBD relearn or replace sensor |
- Solid - Usually low pressure or system needs reset after correction.
- Flashing then solid - Often a failed or missing sensor, wrong frequency sensor, or relearn not completed after tyre work.
Indirect TPMS reset
Indirect systems (many VW, Peugeot, Ford, Vauxhall setups) use ABS wheel speeds - no sensor in the wheel. After inflating tyres, reset via the infotainment menu ("Tyre pressure", "SET", or "Calibrate") or drive at steady speed (often 25 mph+ for 10–20 minutes). Check your handbook for the exact menu path.
Direct TPMS - button reset
Some Toyota, Nissan, and older models have a TPMS reset button under the dash or in the glovebox. Ignition ON, engine off, press and hold until the light blinks, then drive for several minutes at motorway speed.
Direct TPMS - menu / iDrive
BMW, MINI, Mercedes, and many newer cars reset through vehicle settings after confirming pressures. BMW iDrive: Vehicle status → Tyre settings → Reset. Perform with tyres at spec.
This menu path clears a low-pressure warning on some cars but does not register a new sensor ID after a sensor swap. If you changed the sensor, you still need OBD or trigger relearn below.
OBD relearn after sensor swap
When a direct sensor is replaced, the car must learn the new sensor ID. Workshops typically use Autel MaxiTPMS TS508/TS608, Launch CRT5011E, Foxwell T2000 Pro (OBD relearn), or ATEQ VT56 - search those exact names before buying.
- Confirm all tyres are at cold pressure from the door sticker.
- Plug in the TPMS/OBD tool and open the relearn routine for your make and model.
- Follow the tool prompt for each wheel - trigger the sensor or write the ID as instructed.
- Wait for a success message, then drive briefly if the tool asks you to.
Full tool list, marque notes, and DIY vs garage guidance: TPMS sensors explained.
Unbranded sensors on the tool
Automotive Outlet sensors are often unbranded units matched by OE part number. Your tool may show no Schrader, HUF, or Continental option in a dropdown - that is expected.
- Pick Manual ID, Generic sensor, or Enter ID instead of a brand menu.
- Read the ID from the new sensor with the tool, then run OBD relearn for that wheel position.
- A missing brand dropdown does not mean the sensor is wrong - relearn stores the ID, not the logo.
Important: if relearn fails twice, check 433 MHz UK vs 315 MHz import before blaming the sensor. Use a tyre shop with TPMS coverage for your model if the tool cannot find a procedure.
Auto relearn by driving
After tyre rotation or new sensors fitted at a garage, some cars relearn automatically after 10–15 minutes at 30–50 mph. If the light remains after a full drive, the sensor ID may not be stored - a scan tool relearn is needed.
When you need a new sensor
- Flashing TPMS light persists after correct pressures and reset
- Sensor stem corroded or broken during tyre change
- Battery inside direct sensor expired (typical 5–10 year life)
- Wrong frequency sensor fitted (433 MHz UK vs 315 MHz import)
For ordering the correct replacement, see TPMS sensors explained.
MOT and the TPMS light
On UK cars where TPMS is fitted, a permanently lit malfunction indicator can fail MOT even if tread depth is legal. Fix the fault or replace the sensor before the test.
Full TPMS reference
For direct vs indirect systems, 433 MHz vs 315 MHz, OE part numbers, and supplier cross-reference: TPMS sensors explained.
FAQ
- Light came on after tyre change - is that normal?
- Yes if pressures were disturbed or sensors were knocked. Inflate, reset, and drive. If flashing, check each sensor was remounted.
- Can I reset TPMS without a tool?
- Many indirect and some direct cars - yes. Others need an OBD relearn tool after sensor replacement.
- One corner always reads wrong after reset
- That corner’s sensor is likely faulty - order by OE number for that wheel position.
- Why does the light come back after a few miles?
- The car may accept the reset at first, then reject a weak, missing, or wrong-frequency sensor once it checks live readings during the drive.
- Do I reset before or after inflating tyres?
- Inflate all tyres cold first, then reset. Resetting while pressures are wrong teaches the car the wrong baseline.
- Why is there no sensor brand on my scan tool?
- Unbranded aftermarket sensors use manual ID or generic-sensor relearn. See the unbranded section above or the full TPMS guide.
- Can I relearn TPMS at home?
- Yes on many cars with a TPMS-capable OBD tool and the correct procedure. Use a tyre shop if the light flashes, you are unsure of frequency, or the tool has no coverage for your model.
Need a sensor? Browse TPMS sensors
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