BMW 2011 328i Coupe Manual Do Proprietário

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 69
System limitations
Always remember that the range and abil-
ity of the system does have physical limi-
tations. It will not apply the brakes or decelerate 
your vehicle when there is a slow-moving vehi-
cle, stopped vehicle or stationary object ahead 
of you, as for example, at a traffic light or a 
parked vehicle. Also, the system does not react 
to oncoming traffic, pedestrians or other types 
of potential traffic such as a rider on horseback. 
It is also possible that the system may not 
detect smaller moving objects such as motor-
cycles or bicycles. Be especially alert when 
encountering any of these situations as the sys-
tem will neither automatically brake, nor provide 
a warning to you. Also, be aware that every 
decrease in the distance setting allows your 
vehicle to come closer to a vehicle in front of 
you and requires a heightened amount of alert-
ness.
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Active cruise control is not and must not 
be used as a collision avoidance/warning 
system.
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If while your vehicle is actively following a vehi-
cle in front of you and the vehicle ahead speeds 
up or the lane ahead becomes clear, then your 
vehicle will accelerate to the speed you have 
selected. Be aware that changing to a clear, 
unobstructed lane will also result in your vehicle 
accelerating.
Be certain to deactivate the system when 
you pull into an exit lane for a highway off-
ramp.
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Also, vehicles traveling in a staggered manner 
on a highway may cause a delay in the system's 
reaction to a vehicle in front of you or may cause 
the system to react to a vehicle actually in the 
lane next to you. Always be ready to take action 
or apply the brakes if necessary.
While active cruise control is capable of 
braking your vehicle automatically when 
you approach a slower vehicle ahead, it is 
important to be aware that the ability of the sys-
tem to apply the brakes is also limited, e.g. 
when you reduce your desired speed sharply. 
The system cannot stop your vehicle. It uses 
only a portion of braking system capacity and 
does not utilize 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: 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.
<
Active cruise control can only decelerate the 
vehicle to approx. 20 mph or 30 km/h.
Online Edition for Part no. 01 41 2 604 304 - © 02/10 BMW AG