See also:

Checking tire pressure manually
To determine and set the correct tire pressure, proceed as follows:   Remove the valve cap of the tire that is to be checked.   Press the tire pressure gauge securely onto the valve. ...

Tire pressure of cold tires
The tires are cold: • if the vehicle has been parked without direct sunlight on the tires for at least three hours and • if the vehicle has not been driven more than 1 mile (1.6 km). ...

Important safety notes
WARNING Make sure the tailgate is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsci ...