For each gear position while in the manual mode, the speed limit is set as follows: When the selector lever is operated within the range of the speed limit, the gear is shifted.

Shift up
The gear does not shift up while the vehicle speed is lower than the speed limit.
Shift down
The gear does not shift down while the vehicle speed exceeds the speed limit.
If the vehicle speed exceeds the speed limit and the gear does not shift down, the gear position indication flashes 2 times to notify the driver that the gear cannot be shifted.
Kickdown
When the accelerator pedal is depressed fully while driving, the gear shifts down.
However, the gears do not kickdown while the DSC is turned off.
NOTE
The gear also shifts down using kickdown while in the second gear fixed mode.
Auto-shift down
The gear shifts down automatically depending on the vehicle speed during deceleration.
NOTE
If the vehicle comes to a stop while in the second gear fixed mode, the gear remains in second.
Second Gear Fixed Mode
Recommendations for ShiftingMazda 6 Owners Manual: Combination switch removal/installation
1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE
REMOVAL/INSTALLATION.)
3. Remove the steering wheel. (See STEERING WHEEL AND COLUMN
REMOVAL/INSTALLATION.)
4. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
5 ...
Mazda 6 Owners Manual: Front brake (disc) inspection
Brake Judder Repair Hint
Description
Brake judder concern has the following 3 characteristics:
Steering wheel vibration
Steering wheel vibrates in the direction of its rotation. This characteristic
is most noticeable when applying brakes at a vehicle speed of 100-140 km/h
{62.1-86.8 mph}.
F ...