2007 Mercedes GL-Class Owner's Manual - Page 278

Controls in detail Driving systems Switching Downhill Speed Regulation on Switching Downhill Speed Regulation off Press DSR switch 1 ( page 276). The indicator lamp 2 goes out. The message DSR Off appears in the multifunction display. Warning! G i The DSR can only be switched on if the vehicle speed is below 18 mph (Canada: 30 km/h). If the accelerator pedal is depressed while the Downhill Speed Regulation is activated, the vehicle can drive faster than the programmed set speed. You should therefore drive downhill with particular caution as it could otherwise lead to an accident and/or serious injury to you or others. Keep in mind that as soon as you remove the foot from the accelerator pedal with the DSR switched on, the DSR will start regulating the vehicle's speed including use of brakes if required. Depending on the programmed set speed, actual vehicle speed and gradient, the DSR can cause the vehicle to slow down rapidly. Sudden and unexpected deceleration can result in loss of vehicle control, causing an accident and/or serious personal injury to you and others. Press DSR switch 1 ( page 276). The indicator lamp 2 comes on. The message DSR and the set speed appear in the multifunction display. i At a speed above approximately 21 mph (Canada approximately: 35 km/h), the DSR is automatically switched off. The message DSR Off appears in the multifunction display and an acoustic signal sounds. For information on how to switch DSR on again, see "Switching Downhill Speed Regulation on" ( page 277). i If the DSR is switched on at a speed above 18 mph (Canada: 30 km/h), the message DSR Max. speed 18 mph (Canada: 30 km/h) appears in the multifunction display. For information on how to program the set speed while driving, see "Adjusting Downhill Speed Regulation speed with DSR switched on" ( page 278). 277