MG4 Tyre Pressure Reset – The Complete Step-By-Step Guide We All Needed

If you’ve ever jumped into your MG4, pressed the start button, and been greeted by that stubborn orange tyre pressure light, you’re not alone. We’ve all been there—wondering whether it’s a small pressure dip from cold weather, an actual leak, or simply the system needing a reset. The MG4 is a brilliant EV, but its tyre pressure monitoring system (TPMS) can be a bit dramatic at times.

In this guide, we’re diving deep—like really deep—into everything you need to know about the MG4 tyre pressure reset process. We’ll break it down step by step, explain why the warning comes on, what pressures you should be running, and how to make sure your TPMS behaves itself afterward. Think of it like having a car-savvy friend leaning over your shoulder, telling you exactly what to do without overcomplicating things.

Let’s jump in.

Understanding How the MG4’s TPMS Actually Works

Before we start poking through menus and pressing the reset button, it’s worth knowing what the MG4 is trying to tell us. The car uses an indirect TPMS system—meaning it doesn’t measure tyre pressure directly with sensors inside the wheel. Instead, it uses wheel speed and algorithms to figure out if a tyre is losing air.

Why the Light Comes On

A warning triggers when:

• One tyre loses pressure relative to the others
• All tyres drop due to cold temperatures
• You’ve recently inflated your tyres but haven’t performed a system reset
• A tyre is changed or rotated
• The system detects inconsistencies in rolling circumference

It’s clever, yes—but also needy. It needs a reset whenever you adjust pressures.

Correct MG4 Tyre Pressures (All Models)

Running the correct pressure is half the battle. From our collective experience and MG’s official specs, here’s what the MG4 typically requires:

Standard Recommended Pressures

• Front tyres: 38 PSI (2.6 bar)
• Rear tyres: 38 PSI (2.6 bar)

These values apply to:

• SE Standard Range
• SE Long Range
• Trophy Long Range

When to Adjust Pressures

Higher load? Long motorway trip? Cold morning? These situations might call for small tweaks:

• Add +2 PSI for long motorway journeys
• Maintain the factory spec for everyday commuting
• Increase pressures slightly if carrying heavy passengers or luggage
• Don’t overinflate—your MG4 will become crashy and eat tyre tread

Signs You Need to Reset the TPMS

If you’re unsure whether the system needs a reset, here are the tell-tale signs:

The Tyre Pressure Light Stays On

Even when pressures are correct, the light may linger like a houseguest who won’t leave. That’s your cue to reset.

You Recently Pumped Up the Tyres

Any inflation or correction requires recalibration.

You’ve Just Replaced or Rotated Tyres

The wheel speed calculations get confused—reset needed.

Cold Weather Triggered a False Alarm

A 3–6 PSI drop on a frosty morning is normal; topping up and resetting resolves it.

How to Reset the MG4 Tyre Pressure Light – The Exact Steps

This is the part everyone comes for. Let’s make it as simple as possible.

Step-By-Step MG4 Tyre Pressure Reset Procedure

1. Turn the ignition on
   Your MG4 doesn’t need to be “ready” (drive mode on), just switched on.
2. Navigate to the main infotainment screen
   This is the large centre touchscreen—your command centre.
3. Press the “Vehicle” menu
   It’s usually marked by a car icon.
4. Select “Tyre Pressure Monitoring”
   If the system is flagging a warning, this section will highlight it.
5. Choose “Reset TPMS” or “Calibrate Tyres”
   The exact wording may vary depending on software version.
6. Confirm the reset
   You’ll get a prompt asking if you’ve set all tyres to the correct pressure.
7. Drive the vehicle for 5–10 minutes
   The system calibrates while driving—usually above 20 mph.
8. The TPMS warning light should turn off automatically

Nice and easy. And if only everything in life were this straightforward.

Where the Reset Button Is Located (Software Version Differences)

MG occasionally tweaks the software layout, so your screen might look a bit different.

Older MG4 Infotainment Software

• “TPMS Reset” appears under Settings → TPMS
• The menu is more text-based and less graphical

Newer Software Layout

• TPMS is found under Vehicle → Tyres
• The reset button appears as a clean, minimalist tile

If you don’t see the button immediately, scroll—yes, MG loves hiding things slightly off-screen.

What To Do If the Reset Doesn’t Work

Sometimes the MG4 is in a mood. Here's what we do when the light refuses to disappear:

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1. Ensure All Tyres Match the Recommended PSI

The reset won’t work if one tyre is still low.

2. Check the Spare (If Equipped)

Some MG4 markets use a TPMS-connected spare.

3. Restart the Car

Turn it off, lock it, wait 2 minutes, restart. Classic IT trick—it works.

4. Drive Longer After Reset

You sometimes need 15–20 minutes of driving, especially after tyre rotations.

5. Hard Reset the Infotainment System

Hold the power button for 10 seconds until the screen reboots.

6. Final Step: Dealer Diagnostic

Rare, but possible. If a wheel sensor or ABS module is faulty, the TPMS can misbehave.

Common MG4 TPMS Problems We’ve Seen (And How to Fix Them)

You’re not alone—MG4 owners worldwide report similar quirks.

Frequent Warning Light in Winter

Cold mornings lower tyre pressures naturally. Inflate tyres slightly higher in winter.

Random TPMS Trigger at High Speed

Rapid heat changes can confuse the system. Let it stabilise and reset.

After Tyre Replacement, Light Won’t Go Away

This is the most common. New tyres = new rolling circumference = new calibration required.

Tyre Pressure Readings Seem Inconsistent

Because it’s an indirect system, readings are approximated. Resetting fixes most issues.

Why the MG4 Uses an Indirect TPMS (And What That Means for You)

MG4 doesn’t use the more accurate sensor-inside-the-wheel type. Instead, it monitors wheel rotation speeds. This design choice has pros and cons.

Advantages

• Cheaper tyre replacements (no TPMS sensors to damage)
• Less maintenance
• Lightweight system
• No batteries in the sensors to fail

Drawbacks

• Less precise
• Requires resets frequently
• Slow to react to small pressure changes

But overall, it’s cost-effective and simple—exactly what keeps the MG4 competitive in price.

How Often Should You Reset Tyre Pressure in the MG4?

Some people reset the system too often; others never bother. Here’s the sweet spot:

Reset the MG4 TPMS When:

• You adjust tyre pressures
• You rotate or replace tyres
• You repair a puncture
• You get a persistent warning after pressure checks

Don’t Reset the System When:

• The light comes on and you haven’t checked the tyres
• You suspect a puncture
• You see physical tyre damage

Resetting too soon hides problems—always check pressures first.

Driving Habits That Help You Avoid TPMS Warnings

Like we always remind ourselves: prevention beats troubleshooting.

Check Pressures Every Two Weeks

EVs are heavier; tyres work harder.

Use a Quality Digital Pressure Gauge

Cheap gauges lie like bad politicians.

Avoid Slamming Into Potholes

They cause pressure dips and internal tyre damage.

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Inflate Before Long Trips

Tyres warm up on motorways and become more stable.

Tools That Make MG4 Tyre Maintenance Easier

A little preparation goes a long way.

Highly Useful Tools

• Digital tyre gauge
• Portable electric tyre inflator
• Valve stem tool
• Rubber seal lubricant
• Tyre tread depth gauge
• Good-quality air compressor (if at home)

Keeping a small inflator in the MG4 frunk or boot can save you from a headache on a cold morning.

When a Tyre Pressure Reset Isn’t Enough

Sometimes the warning is trying to tell us something serious.

Watch for These Signs:

• TPMS light flashing instead of staying solid
• Strong vibration from wheels
• Loud humming or thumping sounds
• Visible sidewall damage
• Repeated pressure loss in one tyre

In these situations, the TPMS isn’t wrong—it’s warning you.

How Long the MG4 Takes to Recalibrate After the Reset

The indirect TPMS uses driving behaviour to recalibrate.

Typical Timeframes

• 5–10 minutes of driving at 20–40 mph for normal resets
• 10–20 minutes after tyre replacement
• Up to 30 minutes if tyre sizes differ slightly from OEM (not recommended)

Resetting the TPMS After Using a Tyre Sealant

Sealants can confuse the TPMS. If you used an emergency puncture kit:

Do This After Using Sealant

• Clear the tyre completely
• Rebalance the wheel
• Ensure consistent pressure
• Perform a full TPMS reset
• Drive 10–15 minutes

Sealants are temporary—get the tyre properly repaired ASAP.

Tyre Rotation and Its Impact on the MG4 TPMS

Rotating tyres is great for longevity, but the MG4 gets confused afterward.

Always Reset After a Rotation

The system needs to relearn wheel circumference values.

Ideal Rotation Interval

• Every 6,000–8,000 miles
• Or when tread differences become evident

Should You Disable the TPMS? (Short Answer: No)

Some owners try to bypass warnings—but it’s not worth it.

Why You Shouldn’t Disable TPMS

• It’s illegal in some regions
• You’ll fail safety inspections
• You’ll compromise safety
• Insurance may refuse claims after accidents

It’s better to fix the problem and reset.

Closing Thoughts – Your MG4 Tyre Pressure Reset Mastery Begins Here

By now, we’ve walked through everything—from the right MG4 tyre pressures to exactly how to reset the TPMS and how to diagnose deeper issues. Keeping the MG4’s tyres properly inflated doesn’t just stop annoying warnings; it improves range, comfort, tyre wear, and safety.

If you follow the reset steps carefully and keep your pressures checked regularly, your MG4 will reward you with quieter drives, fewer warnings, and better efficiency. And trust us—once you’ve mastered the tyre pressure reset process, the whole system feels a lot less intimidating.

MG4 Tyre Pressure Reset – FAQs

1. Why won’t my MG4 tyre pressure light turn off after inflating the tyres?

Because the TPMS requires a manual reset—inflate first, then reset.

2. How long does it take for the MG4 TPMS to recalibrate?

Usually 5–10 minutes of driving after confirming the reset.

3. Does the MG4 have direct TPMS sensors inside the wheels?

No. It uses an indirect system that calculates rolling speed differences.

4. Will disconnecting the battery reset the TPMS?

No. The MG4 needs software calibration, not electrical resets.

5. Should I inflate MG4 tyres to higher PSI for long trips?

Yes—adding 1–2 PSI can help stability on motorways.

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