Change engine oil light security light – GMC 2003 Envoy User Manual
Page 170
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Change Engine Oil Light
Security Light
United Stales
Untied Slates
Canada
This light is displayed iwhen lhe engine oil needs to be
changed.
Once the engine oil has bean changedi the CHAMGE
ENG O
il
light rrusl be reset, Until it is reset, the (ighi will
bo displayed when the engine is on.
This lighi will come on bdefty when you rum lhe
key toward START. The light will stay on until the
engine starts.
IT the llghi flashes, the Passtock™ system has eniered a
tan^per inode, H the vehicle fails to Etad, see
Passioci^
C f i p ^ g s
2
-
18
.
If the light comes on continuously while driving and
stays on, lhe re may be a problem wflh (he Pa&slock®
system, Youi vehicle will not be protected by Paaslock^',
and you should see your ctaaier.
Also, see
Conleni
Tjheif-£>e/er-rerrf
on page S-17
for
additional hformalion regarding the SECURITY light.
3^45