These instructions apply to the Mercedes GLC Mk1 (X253) 2015-2022.
For other models, please choose your vehicle here.
After adjusting the tyre pressures or changing a wheel on your Mercedes-Benz GLC (X253, 2015–2022), the tyre-pressure warning stays on until you tell the car the pressures are now correct. The GLC does not remember pressures on its own after you top up — you store the new values as the reference through the on-screen menu, and it then watches for any drop against that baseline. Seeing the amber tyre symbol after a top-up is normal, not a fault; it simply means the stored reference no longer matches what the car is reading. Here’s how to clear it properly.
How It Works on the GLC
The X253 GLC monitors tyre pressures and alerts you when one drops below the stored reference. Rather than warning against a fixed number, it compares live pressures with the baseline you last confirmed — which is why the system asks you to re-store the reference every time you change the pressures. That design copes with different loads and seasonal tyre choices, but it also means a top-up on its own never clears the light. The car needs a moment of driving to confirm the corrected readings before the warning goes out.
Getting Ready
- Check pressures cold — before driving, or after the car has stood a few hours. Warm tyres read high and will give you the wrong baseline.
- Set all four corners to the figure on the driver’s door-pillar label (some GLCs list a higher ‘fully laden’ figure — use the one that matches your load).
- Don’t forget the spare or space-saver if your car carries a monitored one.
- Park on level ground with the ignition on before opening the menu.
Set the Pressures First
Park on level ground and inflate all four tyres cold to the figure on the driver’s door-pillar label, then store the reference.
How to Reset the GLC TPMS
- Adjust the pressures, then switch the ignition on.
- On the display, open ‘Vehicle’ (or use the steering-wheel cluster menu).
- Go to ‘Tyre pressure’ and select ‘Restart’ / ‘Confirm tyre pressures’.
- Confirm — the system stores the new pressures and monitors against them.
The warning then clears once the car has confirmed the readings while driving.
If the Light Stays On
- Re-check every tyre. One low corner keeps the warning on — walk round all four and compare with the label.
- Always re-store after inflating or a wheel change. Without a fresh baseline the system keeps comparing against the old figures.
- Complete a short drive. The confirmation isn’t instant — give it a few minutes at road speed after selecting Restart.
- Cold morning? Pressures fall roughly 0.1 bar for every 10°C drop; a light that appears overnight often just needs a top-up and re-store.
- Slow puncture. If one corner keeps returning after you re-store, suspect a nail or a leaking valve rather than the sensor.
- After a wheel swap (winter/summer), the reference must be re-stored for the fitted set — the old baseline no longer applies.
- Still on with everything correct? A sensor with a flat internal battery can hold the warning; that needs checking, not just a re-store.
What Happens Next
Once you’ve confirmed the pressures and driven a short distance, the amber symbol goes out and stays off for the rest of the journey and beyond — the stored reference now matches reality. If it lights again after a cold night, that’s normal seasonal behaviour: top up to the label figure and re-store. A warning that returns within the same drive, or with the pressures confirmed correct, points to a genuine leak or sensor issue worth investigating.
Frequently Asked Questions
How do I reset the tyre pressure light on a Mercedes GLC?
Set all four tyres cold to the door-pillar figure, switch the ignition on, then in the menu go to Vehicle → Tyre pressure and choose Restart or Confirm tyre pressures. Drive a short distance and the warning clears once the car has confirmed the corrected readings against the new baseline.
Do I need a tool?
No — the GLC stores the reference from its own on-screen menu; a tool is only needed if a sensor was replaced.
Why does the light come on in cold weather?
Air contracts as it cools, so pressures fall when the temperature drops overnight. On a cold morning the tyres can read low enough to trip the warning even though nothing is leaking. Top each corner up to the label figure and re-store the reference and it clears.
It came on after a wheel change — why?
The stored reference moved when the wheels came off. Set the correct cold pressures for the fitted set, then re-run the store so the new pressures become the baseline the system watches.
Do I have to set all four tyres before storing?
Yes. The system stores whatever it reads at the moment you confirm, so if one tyre is still wrong you’ll lock in a bad baseline. Set every corner cold to the label figure first, then store — that way a real drop later will still trigger a proper warning.
Can I keep driving with the light on?
Only briefly and gently, to the nearest safe place to check the tyres. A steady warning may just be a top-up needed, but it can also mean a genuine loss of pressure, which affects grip, braking and tyre life. Check all four as soon as you can rather than ignoring it.
If a fault code is stored, look it up on autodtcs.com. To clear a service reminder, see our GLC service reset.
Independent guide — not affiliated with Mercedes. Always follow your official service manual and safety precautions. Read our full disclaimer.