Your vehicle's suspension and underbody can be damaged if driven on rough/uneven roads or over speed bumps at excessive speeds. Use care and reduce speed when traveling on rough/uneven roads or over speed bumps.
Use care not to damage the vehicle's underbody, bumpers or muffler(s) when driving under the following conditions:

This vehicle is equipped with low profile tires allowing class-leading performance and handling. As a result, the sidewall of the tires are very thin and the tires and wheels can be damaged if driven through potholes or on rough/uneven roads at excessive speeds. Use care and reduce speed when traveling on rough/uneven roads or through potholes.
Overloading
TowingMazda 6 Owners Manual: Fuel line pressure inspection
Warning
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death. Fuel can also irritate skin and eyes. To
prevent this, always complete the BEFORE REPAIR PROCEDURE. (See BEFORE
REPAIR PROCEDURE.)
Caution
Disconnecting/connecting the quick r ...
Mazda 6 Owners Manual: To Decrease Cruising Speed
Press the SET/ switch and hold
it. The vehicle will gradually slow.
Release the switch at the desired speed.
Press the SET/ switch and release
it immediately to adjust the preset speed.
Multiple operations will decrease the preset speed according to the number of
times it is operated.
Decr ...