2010 Mercedes GLK-Class Owner's Manual - Page 53

Occupant safety If after these 6 seconds the driver's or the front passenger's seat belt (with the front passenger seat occupied) is not fastened with front doors closed, Rthe 51 The ETDs are designed to activate in the following cases: Rin Rin frontal or rear-end impacts exceeding the system's preset deployment threshold Rand if the vehicle speed once exceeds 15 mph (25 km/h), the seat belt telltale 7 starts flashing and a warning chime sounds with increasing intensity for a maximum of 60 seconds or until the driver's and front passenger's seat belt are fastened. If you and/or your passenger release the seat belt during driving, the seat belt telltale 7 starts flashing and the warning chime sounds as described before. If the driver's or the front passenger's seat belt remains unfastened after 60 seconds, the warning chime stops sounding, the seat belt telltale 7 stops flashing but continues to be illuminated. After a vehicle standstill, the warning chime is reactivated and the seat belt telltale 7 is flashing again if the vehicle speed once exceeds 15 mph (25 km/h). Rin certain vehicle rollovers Rif the restraint systems are operational and functioning correctly, see "SRS indicator lamp" (Y page 36) The ETDs for the front seats will only activate if the front seat belts are fastened (latch plate properly inserted into buckle). The ETDs for the rear outer seats will activate with or without the respective seat belts fastened. In an impact, the ETDs remove slack from the seat belts in such a way that the seat belts fit more snugly against the body. Seat belt force limiters, when activated, are employed to help reduce the peak force exerted by the seat belts on occupants during a crash. i The ETDs do not correct an incorrect seat position or incorrectly worn seat belts. The ETDs do not pull occupants back toward the seat backrest. G Warning! Pyrotechnic ETDs that were activated must be replaced. For your safety, when disposing of the pyrotechnic ETDs always follow our safety instructions. These are available at any authorized Mercedes-Benz Center. The seat belt telltale 7 will only go out if both the driver's and the front passenger's seat belt (with the front passenger seat occupied) are fastened, or the vehicle is standing still and a front door is opened. For more information, see "Practical hints" (Y page 292). Emergency Tensioning Device (ETD), seat belt force limiter The seat belts for the front seats and rear outer seats are equipped with ETDs and seat belt force limiters. NECK-PRO active front head restraints The NECK-PRO active front head restraints are intended to offer the driver and front passenger increased protection from whiplash-type injuries. In the event of a rearend collision, the NECK-PRO active front head Z Safety and security seat belt telltale 7 remains illuminated for as long as either the driver's or front passenger's seat belt is not fastened. side impacts exceeding the system's preset deployment threshold on the far side of the impact