Mercury 1996 Sable Manual page 103

Brake system warning light
This light comes on when the parking brake is
set, or if it is not set, it comes on briefly when
you turn the ignition to the START position. It
normally goes off shortly after the engine starts
and you release the parking brake. If the light
stays on after you have fully released the
parking brake, have the hydraulic brake system
serviced by your dealer or a qualified service
technician.
The BRAKE light indicates that the
brakes may not be working properly.
Have the brakes checked
immediately. Brake failure may result
in serious personal injury or vehicle
damage.
Charging System Light
This light, shown as a battery symbol on your
cluster, indicates that your battery is not being
charged and that you need to have the electrical
system checked.
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