Tyre pressures are quoted for cold tyres and will be specified in your vehicle handbook and may be on a sticker inside the fuel flat, on the drivers (or passengers) door or even inside the glove box.
Normally there are two tyre pressures quoted; one for “normal use” and a higher tyre pressure for when the vehicle is underload. Make sure you adjust your tyre pressures accordingly.
If you don’t know the correct tyre pressure for your vehicle, refer to the manufacturer’s customer service department. Many tyre retailers will also be able to provide this information. Alternatively, you can obtain the correct tyre pressure for your car by visiting the tyre pressure checker on TyreSafe’s website and entering your vehicle’s details.
Never use the tyre pressure quoted on the tyre sidewall. This pressure refers to the maximum inflation pressure a tyre can contain under maximum load.