2011 Mercedes GLK-Class Owner's Manual - Page 201

Warning and indicator lamps in the instrument cluster Problem ä The yellow ESP® warning lamp flashes while the vehicle is in motion. Possible causes/consequences and M Solutions At least one wheel is spinning and ETS (Electronic Traction System) is deactivated to prevent the brakes on the drive wheels from overheating. X Observe the additional display messages in the multifunction display. ETS switches back on again as soon as the brakes have cooled down. The display message disappears and the ä warning lamp goes out. å The yellow ESP® OFF ESP® and ESP® trailer stabilization are deactivated. ESP® will not warning lamp is lit while stabilize the vehicle if it starts to skid or if a wheel starts to spin. the engine is running. X Reactivate ESP®. Exceptions: (Y page 63). X Adapt your driving style to suit the road and weather conditions. If ESP® cannot be activated: X 199 G Risk of accident Have ESP® checked at a qualified specialist workshop. äå The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running. G Risk of accident ESP®, BAS, hill start assist and ESP® trailer stabilization are not available, due to a malfunction. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. The brake system continues to function normally, but without the functions listed above. X Observe the additional display messages in the multifunction display. X Drive on carefully. X Visit a qualified specialist workshop. 6 The red SRS warning lamp is lit while the engine is running. G Risk of injury The restraint systems are malfunctioning. The air bags or ETDs may either be triggered unintentionally or, in the event of an accident, not be triggered at all. X Drive on carefully. X Visit a qualified specialist workshop immediately. G Warning In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be operational. Z On-board computer and displays