Mercedes-Benz GLS Operator's Manual page 156

Automatic transmission
154
Upshifting (Mercedes-AMG vehicles)
!
In manual mode, the automatic transmis-
sion does not shift up automatically even
when the engine limiting speed for the current
gear is reached. When the engine limiting
speed is reached, the fuel supply is cut to
prevent the engine from overrevving. Always
make sure that the engine speed does not
reach the red area of the tachometer. There is
otherwise a risk of engine damage.
Gear indicator
:
; Upshift indicator
Before the engine speed reaches the red area,
an upshift indicator will be shown in the multi-
function display.
When the UP message appears in the multi-
X
function display, pull on the right-hand steer-
ing wheel paddle shifter.
Kickdown
Mercedes-AMG vehicles: kickdown is only
possible in the temporary setting.
For maximum acceleration, depress the
X
accelerator pedal beyond the pressure point.
The automatic transmission shifts to a lower
gear depending on the engine speed.
Shift back up once the desired speed is
X
reached.
During kickdown, you cannot shift gears using
the steering wheel paddle shifters.
If you apply full throttle, the automatic trans-
mission shifts up to the next gear when the
maximum engine speed is reached. This pre-
vents the engine from overrevving.