2001 GMC SIERRA Owner's Manual

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Front Reading Lamps (If Equipped)
If your vehicle has reading
lamps, press the button
located next to the lamp to
turn the lamp on. The lamps
can be adjusted to point in
the direction you want.
Press the button again to turn the lamp off.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by turning the
thumbwheel, located next to the parking/headlamps
knob, all the way up. In this position, the dome lamps
will remain on whether the doors are opened or closed.
You can use the DOME OVERRIDE button, located
below the parking/headlamp knob, to set the dome
lamps to come on automatically when the doors are
opened, or remain off. To turn the lamps off, press the
button into the ªinº position. With the button in this
position, the dome lamps will remain off when the doors
are open. To return the lamps to automatic operation,
press the button again and return it to the ªoutº position.
With the button in this position, the dome lamps will
come on when you open a door.

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Cargo Lamp
Press the button to turn the
cargo lamp on. Press the
button again to turn it off.
A message in the instrument
panel cluster will come on
and display CARGO LAMP
ON when the cargo lamp is
turned on and the ignition
key is turned to RUN.
Battery Run-Down Protection
This feature shuts off the dome, reading, glove box,
cargo and underhood lamps if they are left on for more
than 20 minutes when the ignition is off. This will keep
your battery from running down.
Mirrors
Inside Day/Night Rearview Mirror
Pull the tab under the mirror toward you to reduce glare
from headlamps behind you after dark. Push the tab
away from you for normal daytime operation.

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Electrochromic Inside Rearview Mirror
with Compass and Temperature Display
(If Equipped)
When on, an electrochromic mirror automatically dims
to the proper level to minimize glare from lights behind
you after dark.
The mirror also includes a display in the upper right
corner of the mirror face. The compass reading and the
outside temperature will both appear in the display at the
same time. The dual display can be turned on or off by
briefly pressing either the TEMP or the COMP button.
Temperature Display
The temperature can be displayed by pressing the
TEMP button. Pressing the TEMP button once briefly, will
toggle the temperature reading on and off. To alternate the
temperature reading between Fahrenheit and Celsius, press
and hold the TEMP button for three seconds until the display
blinks F
and C
. Press and release the TEMP button to
toggle between the Fahrenheit and Celsius readings. After
five seconds of inactivity, the display will stop blinking and
display the last selection made.
Press and release the TEMP button to toggle the
temperature display between Fahrenheit or Celsius. If an
abnormal reading is displayed, please consult your dealer.

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Electrochromic Mirror Operation
The time period you need to press and hold the
TEMP button to turn the electrochromic feature on or
off is fifteen seconds. The indicator light to the right of
the TEMP button will still turn on or off to show you
when the electrochromic feature is activated.
Compass Operation
Press the COMP button once briefly to turn the compass
on or off.
When the ignition and the compass feature are on,
the compass will show two character boxes for
approximately two seconds. After two seconds,
the mirror will display the compass heading.
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause
the liquid cleaner to enter the mirror housing.Compass Calibration
The compass may need calibration if:

After five seconds, the display does not show a
compass heading (ªNº for North, for example),
there may be a strong magnetic field interfering with
the compass. Such interference may be caused by a
magnetic antenna mount, magnetic note pad holder
or a similar magnetic item.

The compass does not display the correct heading
and the compass zone variance is set correctly.
In order to calibrate, ªCALº must be displayed in the
mirror compass windows. If ªCALº is not displayed,
push in the ªCOMPº button for approximately
eight seconds or until ªCALº is displayed.
The compass can be calibrated in one of two ways:

Drive the vehicle in circles at five mph (8 km/h)
or less until the display reads a direction, or

Drive the vehicle on your everyday routine and after
several turns the compass will become calibrated and
will display a direction.

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Compass Variance
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to compensate
for compass variance if you live outside zone eight.
Under certain circumstances, as during a long distance
cross
-country trip, it will be necessary to adjust for
compass variance. Compass variance is the difference
between earth's magnetic north and true geographic
north. If not adjusted to account for compass variance,
your compass could give false readings.
To adjust for compass variance:
1. Use the COMP button located at the bottom of
the mirror.
2. Press and hold the COMP button for three seconds
until a zone number appears in the display.
3. Find your current location and variance zone number
on the following zone map.
4. Press the COMP button on the bottom of the mirror
until the new zone number appears in the display.
After you stop pressing the button in, the display will
show a compass direction within a few seconds.

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Outside Manual Adjust Mirrors
Adjust your outside mirrors so you can just see the side of
your vehicle and have a clear view of objects behind you.
Some mirrors can be folded in, to enter narrow doorways.
The use of hood
-mounted air deflectors and add-on
convex mirror attachments may adversely affect
mirror performance.
Camper-Type Outside Mirrors (If Equipped)
If your vehicle is equipped with camper-type mirrors,
they can be adjusted so you can have a clear view of
objects behind you.
Pull out the mirror head to extend it for better visibility
when towing a trailer.
West Coast-Type Outside Mirrors
(If Equipped)
If your vehicle is equipped with the west coast-type
mirrors, they can be adjusted so you can have a clear
view of objects behind you.
A. Outer Mirror Frame
B. Mirror Head
C. Nut
The mirrors can be adjusted by turning the
mirror head (B) and moving the outer mirror frame (A)
backward or forward. You can also loosen the nut (C)
on the top and bottom of the outer mirror frame to
tilt the mirror head.

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Electric Outside Rearview Mirrors
(If Equipped)
The control is located on
the driver's door armrest.
Move the upper control to the left or right to choose the
mirror you want to adjust, then press the arrows on the
lower control pad to adjust the mirror.
Heated Outside Rearview Mirrors
(If Equipped)
The outside rearview mirrors with this feature have a
defrost mode.
To turn on the defrost feature, press the rear window
defogger button. See ªRear Window Defoggerº in the
Index for further information.
Convex Outside Mirror
Your passenger's side mirror may be convex. A convex
mirror's surface is curved so you can see more from the
driver's seat.
CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder before
changing lanes.

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Storage Compartments
Your vehicle includes a number of storage
compartments for storage of often
-used items.
Some vehicles have storage areas in the instrument panel.
Use these spaces for items such as gloves or small books.
Some models have a storage pocket on each of
the front doors.
Some vehicles have a storage area behind the seat.
Glove Box
To open your glove box, pull the lever upward and pull
the door downward.
Center Overhead Console (If Equipped)
Your vehicle may have an overhead console. The long
overhead console has three storage compartments inside
it and the short overhead console has one compartment
inside it.Installing a Garage Door Opener
If you have the long overhead console, a garage door
opener can be installed in the front overhead compartment.
1. To install the garage door opener, first open the
compartment door by pressing the release
button forward.
2. Peel the protective
backing from the hook
and loop patch. Press it
firmly to the back of
your garage door opener,
as close to the center of
the opener as possible.