Change Engine Oil - GMC SIERRA 2002 Manual

Change Engine Oil

When you change the engine oil, be sure to reset the
Engine Oil Life Monitor. See "Engine Oil, When to
Change" in the Index.
2-120
This message is displayed
when the engine oil needs
to be changed. The message
is only displayed for
15 seconds at the start of
each ignition cycle.
Security
If the security message is displayed 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 contact your GM dealer.
This message is
displayed when the content
-
theft deterrent system
has been activated and
also monitors the
R
Passlock System.