TPMS Light Won’t Go Off? Here’s What To Do

1. You Didn’t Drive Long Enough

Some cars need to be driven for 10 to 15 minutes above 30 mph (50 km/h) for the system to re-check the pressure sensors. If you just filled up the tyres and sat in the driveway, the computer hasn’t had time to update.

2. You Didn't Reset the System (Indirect TPMS)

If your car has indirect TPMS (common in VW, Audi, Honda, Mazda, and older Toyotas), it doesn't measure actual air pressure. It measures wheel rotation speed via the ABS sensors.

These systems do not reset automatically when you add air. You must tell the car, "I have set the correct pressure, please memorize this."

• Look for: A "SET" or "TPMS" button (often under the steering wheel or in the glovebox).
• Check Menu: Look in Vehicle Settings > Tyres on your infotainment screen.

3. Dead Sensor Batteries

TPMS sensors run on small lithium batteries that are sealed inside the sensor. They typically last 5 to 10 years. Once the battery dies, the sensor stops talking to the car.

If your light is flashing for 60-90 seconds when you start the car and then stays solid, this usually means a system error or a dead sensor, not just low pressure.

The Fix: You cannot replace just the battery. You must replace the entire sensor. Using a tool like the Autel TS508 can tell you exactly which sensor battery is dead before you go to the shop.

4. The Spare Tyre?

Yes, full-size spare tyres often have TPMS sensors too. If your spare is buried in the trunk and has lost pressure over the years, it might be triggering the light on your dashboard.

Do You Need a Tool?

If you've driven the car, checked the spare, and reset the system (if applicable), you likely have a dead sensor or a malfunction.

A basic tool can help you identify which sensor is bad so you don't get ripped off replacing all four.