Diesel Engines - GMC C series 2002 Owner's Manual

Intake Heater Indicator Light

(Diesel Engines)

Since the light is illuminated whenever the intake heater
is activated, it is normal for the light to cycle on and
off as the heater cycles during engine warm
See "Engine Starting" in your Caterpillar
Operation & Maintenance Manual for more information.
This light on the instrument
panel cluster will come
on when the intake heater
is on and the ignition key
is in ON.
-
up.
R
Service Transmission Filter Indicator Light
(If Equipped)
It monitors the transmission fluid filter. If it ever
goes on, it means your transmission filter is dirty and
requires replacement.
If your vehicle has this
light, you'll find it located
below the the instrument
panel cluster.
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