GMC 1994 Yukon Owner's Manual page 128

This light will come on briefly when you are starting the engine. If the light
comes on and stays on while you are driving, it could indicate a problem
with your vehicle. It could be a problem with your oil pressure, coolant
temperature, or some other problem. Check your various gages to see if they
are in the warning zones. If they are, have your vehicle serviced right away.
Daytime Running Lights (DRL) Indicator Light
(Canada Only)
I
The green Daytime
Running Lights
(DRL) Indicator light,
if you have one, is
located near the upper
center of the
I
instrument cluster.
If your vehicle was first sold, when new,
in Canada, you will have this green
light on the instrument panel. It will light whenever the Daytime Running
Lights are on. For more details about DRL, see "Headlights and Vehicle
Lighting" in this section.
Shift Indicator Light
The orange
SHIFT
Indicator light, if you
have one, is located
near the upper left
corner of the
instrument cluster.
This light,
with
the word SHIFT and the upshift arrow, is used on some
models
with
manual transmissions. Depending on your particular model,
your vehicle may not have this light. The SHIFT indicator light will help
you get the best fuel economy. See "Shift Light'' or "Shift Speeds-
Vehicles Without Shift Light" in
this
section for more information.
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