2010 Mercedes GL-Class Owner's Manual - Page 150

148 Driving systems G Warning! or fog, for example. The distance control system functionality could be impaired. Always pay attention to surrounding traffic conditions even while the Distronic is switched on. Otherwise, you may not be able to recognize dangerous situations until it is too late. This could cause an accident in which you and/or others could be injured. The Distronic adaptive cruise control is not a substitute for active driving involvement. It does not react to pedestrians or on stationary objects, nor does it recognize or predict the lane curvature or the movement of preceding vehicles. The Distronic can only apply 20% of the maximum braking power of the vehicle. It is the driver's responsibility at all times to be attentive to the road, weather and traffic conditions. Additionally, the driver must provide the steering, braking and other driving inputs necessary to remain in control of the vehicle. High-frequency sources such as toll stations, speed measuring systems etc. can cause the Distronic system to malfunction. Controls in detail G Warning! The "Resume" function should only be operated if the driver is fully aware of the previously set speed and wishes to resume this particular preset speed. G Warning! G Warning! The Distronic cannot take road and traffic conditions into account. Only use the Distronic if the road, weather and traffic conditions make it advisable to travel at a constant speed. G Warning! Use of the Distronic can be dangerous on slippery roads. Rapid changes in tire traction can result in wheel spin and loss of control. The Distronic does not function in adverse sight and distance conditions. Do not use the Distronic during conditions of fog, heavy rain, snow or sleet. Close attention to road and traffic conditions is imperative at all times, regardless of whether or not the Distronic is activated. Use of the Distronic can be dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a constant speed. The Distronic will not react to stationary objects in the roadway (e.g. a stopped vehicle in a traffic jam or a disabled vehicle). The Distronic will also not respond to oncoming vehicles. Switch off the Distronic: Rwhen changing from the left to the right lane if vehicles are moving more slowly in the left lane entering a turn lane or highway off ramp Rwhen Rin G Warning! The Distronic cannot take weather conditions into account. Switch off the Distronic or do not switch it on if: Rroads complex driving situations, such as in highway construction zones are slippery or covered with snow or ice. The wheels could lose traction while braking or accelerating, and the vehicle could skid. Distronic system sensor cover is dirty or visibility is diminished due to snow, rain In these situations, the Distronic will continue to maintain the set speed unless deactivated. The Distronic is designed and intended only to maintain a set speed and keep a set distance from moving objects in front of it. Rthe i USA only: