How often should I check tyre pressures on my car?

Check tyre pressures regularly, including before long journeys, and use the vehicle manufacturer’s specified cold pressures rather than the number moulded on the tyre sidewall.

In relation to “How often should I check tyre pressures on my car?”, mechanical symptoms often have several possible causes, so the aim is to narrow the fault safely rather than replace the first component that sounds plausible.

For “How often should I check tyre pressures on my car?”, use the vehicle manufacturer’s pressure figure for the relevant load, not the maximum pressure moulded into the tyre sidewall. Recheck after temperature changes or a long journey if a reading looks unusual.

For “How often should I check tyre pressures on my car?”, the mechanical principles here are not unique to Northern Ireland, but the roadworthiness consequence is relevant to an NI driver. Use the vehicle handbook for model-specific instructions and the attached official sources — nidirect - The Highway Code for Northern Ireland, nidirect - MOT and vehicle testing, and GOV.UK - Vehicle recalls and faults — for legal or testing context. A dashboard symbol can mean different things between manufacturers, so the exact symbol and behaviour matter.

Practical next step for “How often should I check tyre pressures on my car?”: record the warning or symptom, check the handbook and basic safe-to-check items, and arrange diagnosis if the cause is not obvious. Stop driving if there is a red warning, loss of braking/steering, severe overheating, heavy smoke, major fluid loss or any other sign the car may be unsafe.