2013 Jeep Grand Cherokee Owner's Manual - Page 312
2013 Jeep Grand Cherokee Manual
Page 312 highlights
310 UNDERSTANDING YOUR INSTRUMENT PANEL If the ABS light is on, the brake system should be serviced as soon as possible to restore the benefits of Anti-Lock The light also will turn on when the parking brake is brakes. If the ABS light does not turn on when the applied with the ignition switch in the ON/RUN position. ignition switch is turned to the ON/RUN position, have the light inspected by an authorized dealer. NOTE: This light shows only that the parking brake is applied. It does not show the degree of brake application. 16. 4 LOW 15. Anti-Lock Brake (ABS) Light This light alerts the driver that the vehicle is in the four-wheel drive LOW mode. The front and This light monitors the Anti-Lock Brake System rear driveshafts are mechanically locked to(ABS). The light will turn on when the ignition gether forcing the front and rear wheels to switch is turned to the ON/RUN position and rotate at the same speed. Low range provides a greater may stay on for as long as four seconds. gear reduction ratio to provide increased torque at the wheels. Operation of the Brake Warning Light can be checked by turning the ignition switch from the OFF position to the ON/RUN position. The light should illuminate for approximately two seconds. The light should then turn off unless the parking brake is applied or a brake fault is detected. If the light does not illuminate, have the light inspected by an authorized dealer. If the ABS light remains on or turns on while driving, it indicates that the Anti-Lock portion of the brake system is not functioning and that service is required. However, the conventional brake system will continue to operate normally if the BRAKE warning light is not on.
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