Can I drive with the tyre pressure warning light on?
Yes, you can move a short distance to reach a safe place or a service point, but you should not undertake a long drive with the tyre pressure warning light on. The safest course is to stop safely, check tyre pressures, and inflate to the manufacturer’s recommended level. If the light stays on after inflation or you notice damage to a tyre, seek professional help immediately.
The tyre pressure monitoring system (TPMS) warning can indicate two main issues: one or more tyres are underinflated, or there is a fault with the TPMS itself. Cold weather, slow leaks, punctures, or sensor problems can trigger the light. Understanding what the light means helps you decide whether you can proceed to a service point or need roadside assistance.
What the tyre pressure warning light means
Different signals tell you whether the issue is underinflation or a TPMS fault. A steady light usually points to underinflation, while a flashing light may indicate a TPMS malfunction or calibration issue. Knowing which case you’re facing helps you act safely.
- Steady TPMS light commonly indicates one or more tyres are underinflated, typically by about 20% or more.
- Steady light that persists after inflation could mean a damaged tyre or a problem with the TPMS sensor.
- Flashing TPMS light usually signals a fault within the system (sensor, battery, or transmitter issue).
- Weather changes (especially cold) can cause tyre pressures to drop, triggering the light even if there’s no puncture.
Understanding these signals helps you decide whether you can reach a workshop safely or if you need roadside assistance.
Practical steps to take immediately
If the warning appears, take these steps to stay safe and minimize risk. This list explains the actions you should consider before continuing your journey.
- Pull over safely as soon as you can and inspect the tyres. If there is visible damage (bulges, tears, or a rapid deflation), do not drive further.
- Check tyre pressures with a reliable gauge when the tyres are cold. Compare readings with the recommended pressure found on the vehicle’s door placard or in the owner's manual.
- Inflate tyres to the recommended cold pressure. If the tension is repaired and the light goes off, monitor the situation closely over the next few miles.
- Inspect tyres for cuts, punctures, or irregular wear. If you find damage or cannot achieve proper inflation, avoid driving and arrange assistance.
- If the light remains on after inflation, or you suspect a TPMS fault, schedule service at a dealership or qualified workshop. Do not assume the tyres are safe to drive on.
Following these steps helps you regain safety and determine whether you can proceed or need professional help.
When you cannot reach a repair shop right away
There are scenarios where you might need to continue cautiously to a safer location or service point. Use these guidelines to decide what to do next.
- If a tyre looks deflated or damaged, do not drive aggressively; minimize speed and distance, and seek assistance as soon as possible.
- If the tyres feel only slightly deflated and you can reach a nearby service point at a very low speed, proceed slowly and monitor the tyre pressures frequently.
- After inflating, re-check the pressure and the tyre’s condition. If the warning persists, schedule a service appointment.
- If you don’t have access to a gauge or safe place to inflate, contact roadside assistance rather than driving in uncertain conditions.
These cautions emphasize safety above convenience. When in doubt, seek professional help rather than risking a blowout or loss of control.
Common causes and how to address them
Several scenarios can trigger the TPMS warning. Knowing the typical causes helps you respond appropriately and decide whether you can drive to a service location or need assistance.
- Underinflation due to leaks, punctures, or cold weather. Action: inflate to the recommended pressure and recheck after driving a short distance.
- Puncture or slow leak in a tyre. Action: inspect the tyre, repair or replace as needed, and reset TPMS if required.
- TPMS sensor fault or calibration issue after tyre changes. Action: have the TPMS reset or sensors replaced by a qualified technician; the light may stay on even if pressures are normal.
- Sensor battery or transmitter issue. Action: service centre visit to diagnose and replace faulty components.
- After tyre replacement or wheel work, the TPMS may require a relearn procedure. Action: have the dealer or workshop perform the relearn.
Understanding these causes helps you decide on the safest and most efficient course of action.
Summary
The tyre pressure warning light is a critical safety signal. Do not ignore it. Check all tyres’ pressures against the manufacturer’s recommended values, inspect for damage, and seek professional help if the light stays on or you suspect a TPMS fault. By acting promptly and safely, you protect yourself, your vehicle, and others on the road.
