Pontiac Sunbird Owner's Manual page 97

Features & Controls
Voltmeter
(OPTlON)
When your engine is not running, but
the ignition is on (in the Run position),
the gage shows your battery's state of
charge in DC volts. When the engine is
running, the gage shows the condition of
the charging system. Readings between
the red warning zones indicate the
normal operating range.
Readings in either red warning zone
indicate a possible problem in the
electrical system. Have your vehicle
serviced immediately.
96
Brake System Warning Light
Your Pontiac's hydraulic brake system is
divided into two parts. If one part isn't
working, the other part can still work
and stop you. For good braking, though,
you need both parts working well. If the
warning light goes on, there could be a
brake problem. Have your brake system
inspected right away.
This light should come on as you start
the vehicle. If it doesn't come on then,
have it fixed so it will be ready to warn
you if there's a problem.
This light will also come on when you
set your parking brake, and will stay on
if your parking brake doesn't release
fully. If it stays on after your parking
brake is fully released, it means you
have a brake problem.
If the light comes on while driving, pull
off the road and stop carefully. You may
notice that the pedal is harder to push.
Or, the pedal may go closer to the floor.
It may take longer to stop. If the light is
still on, have the vehicle towed for
service. (See the I d a under Towing
Your Pontiac.)