2010 Mercedes S-Class Owner's Manual - Page 72

70 Driving safety systems i Canada only: This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. this device must accept any interference received, including interference that may cause undesired operation of the device. Removal, tampering, or altering of the device will void any warranties, and is not permitted. Do not tamper with, alter, or use in any non-approved way. Any unauthorized modification to this device could void the user's authority to operate the equipment. Using the radar sensors, the Brake detects obstacles that are in your driving path for a sufficient period of time for the system to recognize it. If you approach a vehicle and the PRE-SAFE® Brake has established that the distance to the vehicle ahead at your current speed is so close that the PRE-SAFE® Brake will not be capable of slowing the vehicle sufficiently, the system will initially warn you visually and acoustically. If you do not apply the brakes yourself or maneuver around a sensed obstacle, the vehicle will brake lightly automatically. The PRE-SAFE® system (Y page 54) is activated when the distance to the vehicle ahead at your current speed is so close that the PRESAFE® Brake will not be capable of slowing the vehicle sufficiently. When the danger of a collision still persists and you do not brake or accelerate significantly, the PRE-SAFE® Brake may initiate full application of the brakes automatically. PRE-SAFE® G Warning! The PRE-SAFE® Brake will only respond with brake assistance if it has clearly detected an object. Detection can be impeded by Rdirty Safety and security or covered sensors or heavy rain from other radar sources Rsnowfall Rdisturbance Rstrong radar reflection such as in parking garages The PRE-SAFE® Brake uses radar signals that are not reflected well by narrow objects and absorptive materials. For this reason the PRESAFE® Brake will not react to persons, animals, and approaching traffic or crosstraffic. The PRE-SAFE® Brake may not detect narrow vehicles driving in front of you, such as motorcycles and vehicles driving offset from your vehicle center. G Warning! Depending on the vehicle speed, the PRE-SAFE® Brake brakes your vehicle with a maximum of 13 ft/s2 (4 m/s2) before a possible hard stop. This corresponds to about 40% of the maximum deceleration ability of your vehicle. The driver must apply the brakes additionally in order to prevent a collision. The self-acting hard stop will be initiated when the imminent danger of a collision exists, e.g. when an evasive driving maneuver cannot avoid an accident. The PRE-SAFE® Brake applies the brake pedal automatically which results in the brake pedal moving. Therefore keep driver's foot area clear at all times, including the area under the brake pedal. Objects stored in this area may impair pedal movement which could interfere with the braking ability of the PRE-SAFE® Brake. Do not place your foot under the brake pedal - your foot could become caught.