A low level of electrolyte fluid will cause the battery to discharge quickly.

Inspect the electrolyte level at least once a week. If it is low, remove the caps and add enough distilled water to bring the level between the upper and lower level (illustration).
Do not overfill.
Examine the specific gravity of the electrolyte with a hydrometer, especially during cold weather. If it is low, recharge the battery.
Battery Maintenance
Battery RechargingMazda 6 Owners Manual: How to use AUX mode
1. Select the icon on the home
screen to display the Entertainment screen.
2. Select to switch to the AUX
mode. The following icons are displayed in the lower part of the center display.
NOTE
If a device is not connected to the auxiliary jack, the mode does not
switch to the AUX mod ...
Mazda 6 Owners Manual: Locking Lug Nuts
If your vehicle has Mazda optional antitheft wheel lug nuts, one on each wheel
will lock the tires and you must use a special key to unlock them. This key will
attach to the lug wrench.
Register them with the lock manufacturer by filling out the card provided in
the glove compartment and mail ...