Chevrolet C6H042, Owner'S Manual

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Range Inhibited Warning Light
(If Equipped)
If your vehicle is equipped
with an Allison automatic
transmission, this light
could turn on indicating that
transmission range shifts
may not occur.
The warning light should come on briefly, as a check,
when you turn on the ignition.
For detailed information on shift inhibit limitations, see
the Allison Automatic Transmission Operator’s Manual
in your vehicle for further information.
Brake System Warning Light
Your vehicle has either hydraulic or air brakes. Each
system has different warning lights.
Hydraulic Brake System Warning Lights
Vehicles with hydraulic systems have two brake system
warning lights on the instrument panel.
If the PRIMARY BRAKE
warning light comes on, it
means that the fluid level in
the master cylinder
reservoir is low or there is
another problem with your
primary hydraulic brakes.
When it comes on, you will also hear a warning tone.
The PRIMARY BRAKE warning light may come on,
and the warning tone may sound, when you’re turning
and braking at the same time. This is normal. See
“Hydraulic Brake Systems” in the Index.