See also:

Overheating
If the temperature gauge indicates overheating, the vehicle loses power, or you hear a loud knocking or pinging noise, the engine is probably too hot. WARNING ...

Trailer Towing
The Mazda3 is not designed for towing. Never tow a trailer with your Mazda3. ...

Hood
WARNING. Always check that the hood is closed and securely locked: A hood that is not closed and securely locked is dangerous as it could fly open while the vehicle is moving and block the drive ...