2007 Mercedes GL-Class Owner's Manual - Page 454

Practical hints What to do if ... Text messages Display message Possible cause/consequence inoperative See Operator's Manual Possible solution Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible. ABS The ABS has detected a malfunction and has switched off. The ESP® and the BAS are also deactivated. The brake system is still functioning normally but without the ABS available. Failure to follow these instructions increases the risk of accident. unavailable See Operator's Manual The ABS was deactivated because of When the voltage is above this value again, the insufficient power supply. The charg- ABS is operational again and the message in ing voltage has fallen below 10 volts. the multifunction display should disappear. The brake system is still functioning If the message in the multifunction display normally but without the ABS does not disappear: available. Have the generator (alternator) and the battery checked. 453