2010 BMW 550 Owner's Manual - Page 69

Brake pedal feel When the system brakes and you also depress the brake pedal, a somewhat different braking feel results. Professional* navigation system If a navigation DVD is in the drive, refer to page 132, within limits the system adjusts the accelerating and braking behavior of the vehicle to the road you are driving on. To ensure that the system is informed of the current course of the road, always use the latest navigation DVD if possible.< When the vehicle position is unknown, e.g. when you leave the map area, this influence of the navigation system is not available. The minimum initial activation speed is 20 mph/ 30 km/h, and the maximum speed is 110 mph/ 180 km/h. However, you can also activate the system while stopped, refer to While stopped, page 69. 67 Online Edition for Part no. 01 41 2 602 678 - © 08/09 BMW AG Reference Mobility Communications Entertainment Active cruise control cannot detect stop signs, red lights, or any object that is stopped or is blocking the road. Active cruise control is not and must not be used as a collision avoidance/warning system. Since this active cruise control system is a new technology and operates differently from conventional cruise control systems which you may be accustomed to, it is necessary that you read all of the pages relating to this system before use. Carefully read and observe the information on the system limitations beginning on page 71 to obtain a good command of the system and its range of applications.< Navigation Driving tips follow this action within the given scope and can also accelerate from a complete stop if the vehicle ahead of you drives off again shortly thereafter. During braking, your vehicle brake lamps will automatically illuminate to alert a following driver to take action. In addition, it may be necessary for your vehicle to downshift the automatic transmission to maintain the distance setting selected. As soon as the road in front of you has no moving vehicles, the system will accelerate to your desired speed. This set speed is also maintained on downhill grades, however the vehicle speed can drop below the set speed when driving uphill if the engine output is not sufficient. Applications Please try the system first during sparse traffic and clear road conditions so that you can get used to the system. After you have experience and understand the system, only then use it during normal traffic. As with conventional cruise control systems, active cruise control in no way reduces or substitutes for the driver's own personal experience, responsibility, alertness and awareness in adjusting speed, braking or otherwise controlling the vehicle. The driver should decide when to use the system on the basis of road, traffic, visibility, and weather conditions. Active cruise control is intended for use on highway-type roadways where traffic is moving relatively smoothly as well as in slow-moving traffic. Do not use the system in city driving; in complex driving situations; heavy traffic such as during rush hour; on curvy, winding roads, slippery roads or roads with sharp curves such as highway off-ramps; during inclement weather such as snow, strong rain or fog; or when entering interchanges, service/parking areas or toll booths. It is also important to regulate your vehicle's speed and distance setting within applicable legal limits. Always be ready to take action or apply the brakes if necessary, especially when the system is actively following a vehicle in front of you. Otherwise, driving conditions can result which lead to a violation of the law or elevated risk of an accident. Controls At a glance