Mercury 1996 Sable Manual page 233

The parking brake and parking brake release
Do not use the gearshift in place of
the parking brake. Always set the
parking brake fully and make sure
that the gearshift is securely latched
in P (Park).
If the parking brake is fully released,
but the Brake Warning Light remains
on, have the brakes checked
immediately. They may not be
working properly.
To avoid personal injury when
manually releasing the parking
brake, make sure the gearshift
selector is securely latched in P
(Park) and do not release the parking
brake from outside the vehicle.
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