1996 Ford F150 Owner's Manual - Page 68

The Mechanical Cluster The following warning lights and gauges are on the mechanical cluster. All of the warning lights and gauges alert you to possible problems with your vehicle. Some of the lights listed are optional. The following sections detail what each of these indicators means. Brake System Warning Light The red warning light for the brakes can show three things - that either the parking brake is not fully released, that the brake fluid level is low in the master cylinder reservoir or the vacuum pressure is low on diesel engine vehicles. If the fluid level is low, the brake system should be checked by a qualified service technician. This light comes on when you turn the ignition key to START to verify that the indicator bulb is working. If the light stays on or comes on after you have released the parking brake fully, have the hydraulic brake system serviced. RWARNING The BRAKE light indicates that the brakes may not be working properly. Have the brakes checked immediately. Brake warning light symbols 66