Pontiac 2002 Sunfire - Manual (Page 130)

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Service Vehicle Soon Light
This light will come on
briefly when you turn
on the ignition.
It will stay on or come on if it detects a problem on
the vehicle. If this happens, see your dealers service
department as soon as possible.
Passlock
R
Warning Light
United States Canada
This light will come on briefly when you turn the key
to START.
If the light flashes, the Passlock system has entered a
tamper mode. If the vehicle fails to start, see “Passlock”
in the Index.
On vehicles equipped with the remote keyless entry
system, when the ignition is off and the security system
is armed, the light will flash to indicate that the security
system is active.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
system. Your vehicle will not be protected by Passlock,
and you should see your dealer.