You can shift gears down by operating the selector lever or the steering shift switches (some models).
M6
→ M5
→ M4
→ M3
→ M2
→ M1
Using selector lever
To shift down to a lower gear, tap the selector lever forward (-)
once.

Using steering shift switch (Some models)
To shift down to a lower gear with the steering shift switches, pull the DOWN switch (-
) toward you once with your fingers.

WARNING
Do not use engine braking on slippery road surfaces or at high speeds:
Shifting down while driving on wet, snowy, or frozen roads, or while driving at high speeds causes sudden engine braking, which is dangerous. The sudden change in tire speed could cause the tires to skid. This could lead to loss of vehicle control and an accident.
Keep your hands on the steering wheel rim when using fingers on the steering shift switches:
Putting your hands inside the rim of the steering wheel when using the steering shift switches is dangerous. If the driver's air bag were to deploy in a collision, your hands could be impacted causing injury.
NOTE
Manually Shifting Up
Second Gear Fixed ModeMazda 6 Owners Manual: Indicators
Manual shift mode indication
In manual shift mode, the “M” of the shift position indication in the instrument
panel illuminates.
Gear position indication
The numeral for the selected gear illuminates.
NOTE
If the gears cannot be shifted down when driving at higher speeds, the
gear ...
Mazda 6 Owners Manual: Automatic transaxle removal/installation
1. Disconnect the negative battery cable.
2. Remove the battery and battery tray.
3. Remove the aircleaner component. (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION.)
4. Remove the front tires and splash shield.
5. Remove the under cover.
6. Remove the steering gear and power steering pipe. (See ...