Change Engine Oil Light; Security Light - GMC 2005 Envoy Owner's Manual

Change Engine Oil Light

See Scheduled Maintenance on page 6-4 and Engine
Oil on page 5-15 for more information.
Once the engine oil has been changed, the change
engine oil light must be reset. Until it is reset, the light
will be displayed when the engine is on.
When this light comes on,
it means that an oil change
and other maintenance
procedures are required for
your vehicle.

Security Light

The light will stay on until the engine starts. If the light
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flashes, the Passlock system has entered a tamper
mode. If the vehicle fails to start, see Passlock
on page 2-18.
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.
Also, see Content Theft-Deterrent on page 2-17 for
additional information regarding the security light.
This light will come on
briefly when you turn the
key toward START.
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