See also:

Selecting preset channels
Presetting a channel with a preset button allows you to select that channel in a single operation. Up to six SAT1, SAT2 and SAT3 channels each may be preset. ...

When checking or servicing in the engine compartment while the engine is running
WARNING A running engine can be dangerous. Keep your fingers, hands, clothing, hair and tools away from the cooling fan, belts and any other moving engine parts. Removing rings, watches and ties ...

General information
Noise from under the vehicle NOTE You may hear a noise from under the vehicle approximately 5 hours after the engine is turned off. However, this does not indicate a malfunction. This noise ...