Grand Cherokee 4WD V8-4.7L (2003)
Brake Warning Indicator: Description and Operation
RED BRAKE WARNING INDICATOR
A red warning lamp is used for the service brake portion of the hydraulic system. The lamp is located in the instrument cluster. It can be activated by
application of the parking brake, a leak in the front or rear wheel brake hydraulic circuit which causes the master cylinder reservoir to be low on fluid,
or by turning the ignition switch to the start position. The red brake warning indicator can also be turned on if the brake fluid level switch circuit
becomes open or shorted to ground.