The tyre pressure warning light is an important safety feature in modern vehicles, alerting drivers to potential issues with their tyres. When this light illuminates on your dashboard, it's crucial to understand its implications and take appropriate action.

Understanding the Tyre Pressure Warning Light

The tyre pressure warning light is part of your vehicle's Tyre Pressure Monitoring System (TPMS). This system continuously monitors the air pressure in your tyres and activates the warning light when pressure drops approximately 25% below the manufacturer's recommended level in one or more tyres.

Common Causes for Activation

  • Low tyre pressure: The most common reason for the light to come on.
  • Temperature changes: Significant fluctuations in ambient temperature can affect tyre pressure.
  • Faulty TPMS sensor: Sometimes, the sensor itself may malfunction.
  • Objects in the tyre: A puncture or foreign object can trigger the warning.
  • Bent wheels or rims: Damage to the wheel can affect tyre pressure readings.

Driving with the Tyre Pressure Warning Light On

While it is legally permissible to drive with the tyre pressure warning light on, it is not recommended for safety reasons. If the light comes on while you're driving:

1. Reduce your speed immediately.

2. Drive cautiously to avoid further tyre damage.

3. Find a safe place to pull over and inspect your tyres.

4. If no visible damage is present, proceed to the nearest petrol station or tyre service center.

Risks of Continuing to Drive

Driving with underinflated tyres can lead to:

  • Reduced handling and braking performance
  • Increased risk of tyre blowouts
  • Uneven tyre wear
  • Decreased fuel efficiency

What to Do When the Light Comes On

1. Check tyre pressures: Use a pressure gauge to check all tyres, including the spare.

2. Inflate tyres: Add air to reach the manufacturer's recommended pressure levels.

3. Inspect for damage: Look for any visible punctures, cuts, or objects in the tyre.

4. Reset the TPMS: After inflating, you may need to reset the system. Consult your vehicle's manual for specific instructions.

5. Seek professional help: If the light persists after these steps, visit a qualified mechanic.

Preventing Tyre Pressure Issues

To avoid future problems:

  • Regular checks: Inspect tyre pressure monthly and before long trips.
  • Proper inflation: Always maintain the correct tyre pressure as specified by your vehicle manufacturer.
  • Seasonal adjustments: Be aware that temperature changes can affect tyre pressure.
  • Rotate tyres: Regular rotation helps ensure even wear and can prevent pressure-related issues.

Remember, your vehicle's TPMS is a helpful tool, but it doesn't replace the need for routine tyre maintenance. By staying proactive and attentive to your tyres' condition, you can ensure safer driving and extend the life of your tyres.