Reset the Tyre Pressure Monitor (TPMS)

When the tyre-pressure warning appears on your Kia Sorento Mk4 (MQ4, 2020–present), it means at least one tyre has fallen below the pressure the car expects. On a large SUV like the Sorento this happens easily — a cold snap, a slow leak, or simply carrying a full load with the wrong pressure set will all light the symbol. It’s a safety prompt, not automatically a fault. The Sorento uses a direct TPMS (a sensor in each wheel) that relearns automatically as you drive once the pressures are right. There’s no reset button or menu step. Here’s how to clear the light.

How the Sorento’s TPMS Works

Each wheel carries a battery-powered sensor that measures the actual pressure inside the tyre and radios it to the car. Because every corner reports separately, the cluster can usually tell you which tyre is low rather than just showing a general warning. This is a direct system reading real pressure — not an indirect setup inferring it from wheel-speed — so once the pressures are corrected there is nothing to store by hand; the warning clears itself after a short drive.

First, a Few Checks

• Check the tyres cold — before you drive, or after a couple of hours parked. A hot tyre reads high and misleads you.
• Read the correct figures off the driver’s door-pillar label; the Sorento lists a normal and a fully laden setting.
• Use the higher laden pressure when carrying seven people or a boot full of luggage, then set it back down afterwards.
• Have an accurate gauge and a pump or forecourt airline to hand.
• If the car has been fitted with a different wheel size, check the pressures match that fitment.

How to Clear the Warning

1. Set all four tyres to the correct pressure (cold) — the figure is on the driver’s door-pillar label.
2. Drive for about 10 minutes at a steady speed above 25 km/h (15 mph).
3. The system reads the corrected pressures and the warning goes out.

If the Light Stays On

• Re-check every tyre — one slightly low corner keeps the light on.
• Allow a few more miles. Sensors transmit periodically, so the readout can lag a fresh top-up by a minute or two.
• Hunt for a slow puncture. If the same corner keeps dropping, suspect a nail or a leaking valve and have it checked.
• After new tyres or a wheel swap, the moved sensor may need matching to its position with a tyre-shop tool.
• Inspect valve caps and cores — a weeping valve bleeds pressure slowly.
• A steady-flashing TPMS light (about a minute at start-up) means a sensor fault — a flat sensor battery, or a sensor not matched after a wheel change — and needs a tyre shop’s tool.

Once It’s Done

With every tyre up to spec and the car driven for a few minutes, the amber symbol goes out and stays out. If the display lists individual pressures, you’ll watch the low corner rise to match the rest. A small seasonal drop when the temperature falls is normal — just top it up cold again if the warning returns.

Frequently Asked Questions

How do I reset the tyre pressure light on a Kia Sorento?

Set the pressures correctly with the tyres cold, then drive for about 10 minutes above 25 km/h. There’s no button — the direct system relearns on the move and the warning clears itself once every corner is up to spec.

Is there a reset button?

No. The Sorento’s direct TPMS clears itself once the pressures are right and you’ve driven a short distance. There’s nothing to hold down and no reset menu to open on the screen.

Why won’t the light go out after pumping the tyres up?

Either a tyre is still slightly off the mark, or the system needs a few more miles to confirm. Re-check all four against the door-pillar figures with a good gauge. A steady flashing light points to a sensor fault rather than a low tyre.

Do I need a tool?

Not for a normal reset. A workshop tool is only needed if a sensor has been replaced, or the wheels were rotated and a sensor needs re-matching to its new corner. For an everyday top-up, driving is all it takes.

Should I use the laden pressure setting?

Yes, when the Sorento is loaded up with passengers and luggage the door-pillar label calls for a higher rear pressure. Set the laden figures for the trip, then return to the normal pressures once you’re running lightly loaded again.

Why does the warning appear on cold mornings?

Air contracts as it cools, so pressures fall by roughly 1 psi for every 5–6 °C drop. Tyres set on a warm day can slip under the threshold overnight. Inflate them cold to the door-pillar figure and the light should stop returning.

If a fault code is stored alongside the warning, look it up on autodtcs.com. To clear a service reminder instead, see our Sorento Mk4 service reset.