Rear Window Defogger; Dual Automatic Climate Control System - GMC Sierra 2010 Owner's Manual

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Rear Window Defogger

For vehicles with a rear window defogger, a warming

grid is used to remove fog from the rear window.

< (Rear) : Press to turn the rear window defogger on

or off. An indicator light on the button comes on to show

that the rear window defogger is on.

The rear window defogger only works when the ignition

is in ON/RUN. The rear window defogger stays on for

approximately 10 minutes after the button is pressed,

unless the ignition is turned to ACC/ACCESSORY or

LOCK/OFF. The defogger can also be turned off by

turning off the engine.

Notice: Do not use anything sharp on the inside of

the rear window. If you do, you could cut or damage

the warming grid, and the repairs would not be

covered by the vehicle warranty. Do not attach a

temporary vehicle license, tape, a decal or anything

similar to the defogger grid.

Dual Automatic Climate Control

The heating, cooling, and ventilation in the vehicle can

be controlled with this system. The vehicle also has a

flow-through ventilation system described later in this

A. Driver and Passenger

Temperature Controls

B. Fan Control

E. Recirculation

F. Outside Air

G. Air Delivery Mode

I. Power Button

J. Rear Window Defogger

K. Air Conditioning

L. PASS (Passenger)

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