2011 Mercedes G-Class Owner's Manual - Page 187

Warning and indicator lamps in the instrument cluster Safety systems Problem Possible causes/consequences and M Solutions 185 ! G Risk of accident The yellow ABS warning ABS (Anti-lock Brake System) is deactivated due to a malfunction. lamp is lit while the BAS (Brake Assist), ESP® (Electronic Stability Program), EBD engine is running. (Electronic Brake force Distribution) and 4ETS are also temporarily unavailable. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. X Observe the additional display messages in the multifunction display. X Drive on carefully. X Visit a qualified specialist workshop. If the ABS control unit is faulty, there is also a possibility that other systems, such as the navigation system or the automatic transmission, will not be available. ! G Risk of accident The yellow ABS warning The on-board voltage is too low. ABS has been deactivated due to lamp is lit while the undervoltage. engine is running. ESP®, BAS, EBD and 4ETS are also therefore deactivated. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. X Observe the additional display messages in the multifunction display. X Drive on carefully. X Switch off consumers that are not required, e.g. the rear window defroster or interior lighting. ABS will be available again as soon as the vehicle's on-board electrical system voltage increases. If the warning lamp is still on: X Have the battery and alternator checked at a qualified specialist workshop. ! You have engaged the differential locks. ABS, BAS, EBD, ESP® and The yellow ABS warning 4ETS have been deactivated. lamp is lit while the X Disengage the differential locks. engine is running. ABS, BAS, EBD, ESP® and 4ETS are subsequently reactivated. Z On-board computer and displays