Pick your car make for the exact tyre pressure warning light reset procedure, including direct and indirect TPMS checks and realistic UK costs.
Why the tyre pressure light is on
Nine times out of ten the tyre pressure warning light is telling the truth: one of your tyres is genuinely low. Before you reset anything, check all four tyres cold with a decent gauge and set them to the pressures on the sticker in the driver's door shut or inside the fuel flap.
Cold weather alone will trigger it. Air contracts as the temperature drops, so a car set correctly in September can drop three or four PSI by December and light the dash up. Top the tyres back up and the light usually clears on its own after a short drive.
Direct and indirect TPMS — which one you have
Indirect TPMS has no sensors in the wheels. It watches wheel speed through the ABS sensors and spots the slightly faster rotation of an under-inflated tyre. These systems must be reset manually after you adjust pressures, usually through a dashboard menu or a button in the glovebox.
Direct TPMS uses a battery-powered sensor inside each wheel that transmits actual pressure. These are more accurate but the sensor batteries last around seven to ten years, after which the sensor must be replaced. A single dead sensor will keep the light on no matter how many resets you do.
The general reset procedure
Set all four tyres to the correct cold pressure, including the spare on cars that monitor it. Turn the ignition on without starting the engine. Find the TPMS or tyre pressure entry in the driver information menu and select reset or set. Confirm, then start the engine and drive for ten to fifteen minutes above 30 mph so the system can relearn.
If the light comes back on within a day or two, you have a slow puncture, a leaking valve or a failed sensor — not a reset problem. Pick your make below for the exact menu path and button locations for your car.
What it costs to put right
A reset is free and takes two minutes. A valve service kit is usually £10 to £20 per wheel. A replacement TPMS sensor typically runs £40 to £90 fitted and programmed, depending on the make and whether the sensor is a clone-programmable universal type.
If you are chasing a slow puncture, a proper plug-and-patch repair from the inside is around £25 to £35 and is far safer than a top-up every fortnight.
Frequently asked questions
Can I drive with the tyre pressure light on?
Only far enough to check and correct your pressures. A significantly under-inflated tyre overheats, wears out its shoulders and can fail at speed.
Why is the light still on after I inflated the tyres?
Indirect systems need a manual reset after inflation, and direct systems need a drive of ten to fifteen minutes to re-read all four sensors. If it stays on beyond that, suspect a sensor or a slow leak.
How long do TPMS sensor batteries last?
Typically seven to ten years. The battery is sealed inside the sensor, so a flat one means a new sensor rather than a repair.
Will a new tyre reset the TPMS light?
Not by itself. The fitter must refit or reprogram the sensor and the system still needs its relearn drive afterwards.