2011 Mercedes GL-Class Owner's Manual - Page 207

Off-road driving systems Shift ranges HIGH RANGE Road position for all normal driving situations 205 Ron X To activate: press off-road button :. Indicator lamp ; lights up. Off-road indicator = appears in the multifunction display. To deactivate: press off-road button :. Indicator lamp ; and off-road indicator = go out. X slippery road surfaces, e.g. in the case of slush Ron snow or ice-covered roads Rif you have mounted snow chains to your vehicle G Warning! LOW RANGE General notes The LOW RANGE off-road gear assists you in driving off-road and when fording. When LOW RANGE is engaged, the engine's performance characteristics and the gearshifting characteristics of the automatic transmission are adapted for this purpose. ABS, ESP® and 4ETS programs especially adapted to off-road driving are also activated. For information on "Off-road driving", see (Y page 173). You will find information about driving safety systems in conjunction with LOW RANGE in the "Safety" section (Y page 65). Always wait until the procedure of shifting from HIGH RANGE to LOW RANGE - and from LOW RANGE to HIGH RANGE - has been entirely completed. During this procedure do not turn off the engine or shift the automatic transmission into another gear. If you do not wait until the shifting procedure has been entirely completed then it might not be correctly performed. The transfer case might be in neutral, thus interrupting the transfer of power between the engine and the drive axle. The vehicle is then freely movable, even if a gear has been selected, and could unintentionally be set into motion - particularly on up - or downhill grades. This could lead to an accident and cause injury to yourself and others. Please observe related messages appearing in the multifunction display. Z Driving and parking LOW RANGE Off-road position for driving off-road and fording The gear ratio between the engine and wheels is only approximately one third of that in the HIGH RANGE road position. The drive torque is correspondingly higher as a result. Do not use LOW RANGE: