See also:

Wheels and tires
If you have a flat tire, see “Flat tire” in the “In case of emergency” section of this manual. ...

Vehicle recovery (freeing a stuck vehicle)
...

Checking the tire pressure
1. Remove the valve stem cap from the tire. 2. Press the pressure gauge squarely onto the valve stem. Do not press too hard or force the valve stem sideways, or air will escape. If the hiss ...