McLaren Super Series Owner's Handbook Manual page 108

Driving Controls
Driving Safety Systems
Lowering the Airbrake - vehicle moving
If the car is travelling at speeds above 9 mph (15
km/h), press the AERO button, and the Airbrake
will lower fully.
WARNING: Before lowering the
Airbrake, check for any objects which
may obstruct movement, e.g.
branches or leaves, and remove them
or the Airbrake may no longer
function correctly. The driver is
responsible for ensuring no person
or object can be trapped during
Airbrake movement.
NOTE: The Airbrake will react to an
AERO button press if the speed of the
vehicle meets the following criteria:
When cornering, the vehicle speed must be
between 9 mph (15 km/h) and 75 mph (120
km/h).
When travelling in a straight line, the
vehicle speed must be between 9 mph (15
km/h) and 155 mph (250 km/h).
This is to ensure stability of the vehicle
while the Airbrake is moving.
2.36
Lowering the Airbrake - vehicle stationary
If the car is being parked and the Airbrake is still
deployed, press and hold the AERO button for 5
seconds, and the Airbrake will start to lower.
Keep the button pressed until the Airbrake is
fully lowered, remaining alert to any potential
obstructions.
WARNING: Before lowering the
Airbrake, check for any objects which
may obstruct movement, e.g.
branches or leaves, and remove them
or the Airbrake may no longer
function correctly. The driver is
responsible for ensuring no person
or object can be trapped during
Airbrake movement.
NOTE: If the AERO button is released
before the Airbrake is fully retracted, it
will return to the previously selected
position.
Airbrake operation
During hard braking at high speed, the Airbrake
automatically rises to the fully deployed position
to provide maximum braking assistance.
Once the pressure on the brake pedal is released,
the Airbrake will return to its previous position.
NOTE: The Airbrake will lower just
before the vehicle comes to a halt
during hard braking.
The Airbrake may actively deploy, even if the
brake pedal is not depressed, to maintain vehicle
stability under the following conditions:
When high longitudinal G forces are
measured, for example, when the
accelerator pedal is suddenly released.
When high vertical G forces are measured,
for example, when travelling over the crest
of a hill.
NOTE: The Airbrake may actively deploy
to aid engine compartment cooling.
WARNING: When activated, the
Airbrake will temporarily block the
view through the interior mirror. In
this case, monitor the traffic behind
you through the exterior mirrors.
Self-test
After each full ignition cycle, the first time the
engine is started and at speeds above 9 mph (15
km/h), the Airbrake self-tests, rising and then
returning slowly to its initial position.