BMW 745i オーナーマニュアル

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 81
braking system capacity and does not uti-
lize the full capacity of the vehicle braking 
system. Therefore, the system cannot 
decrease your speed for large differences 
in speed between your vehicle and the 
vehicle ahead. Examples: during emer-
gency braking, when you approach a 
vehicle traveling at a much lower speed 
than your own speed such as approaching 
a toll booth or when a much slower vehicle 
cuts in front of you at close range.
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Whenever active cruise control 
recognizes a situation that 
requires driver braking because 
the system capacity has been 
reached or has been exceeded, 
the system alerts the driver by flashing this 
symbol in the instrument cluster and 
sounding a chime. 
Swerving vehicles 
When a vehicle moves from an adjacent 
lane into your lane, active cruise control will 
not recognize this vehicle until it is fully in 
your lane ahead of your vehicle. 
Malfunctions 
The build-up of foreign material – e.g., 
snow, ice, dirt, road debris, etc. – can lead 
to reduced detection performance of active 
cruise control. You should check the 
sensor under the front bumper and clean it 
as necessary prior to driving your vehicle. If 
the sensor becomes covered by foreign 
material or has a malfunction, it is possible 
that the sensor will no longer be able to 
detect vehicles in front of you. After the 
system recognizes that the sensor is no 
longer functional, a message is displayed 
in the Check Control and an acoustic signal 
is emitted, refer to page 
. Also observe 
the additional information provided in the 
Control Center. 
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