GMC SONOMA 2003 Owner's Manual

Mirrors
Manual Rearview Mirror
Pull the tab under the mirror toward you to reduce the
glare from headlamps behind you after dark. Push
the tab away from you for normal daytime operation.
Automatic Dimming Rearview Mirror
If your vehicle has this feature, the mirror automatically
changes to reduce glare from headlamps behind
you. A photocell on the back of the mirror senses when
it is becoming dark outside. Another photocell built
into the mirror surface senses when headlamps
are behind you.
At night, when the glare is too high, the mirror will
gradually darken to reduce glare. This change may take a
few seconds. The mirror will return to its clear daytime
state when the vehicle is put into REVERSE (R) or when
the glare is reduced.
AUTO:This button is located at the base of the mirror.
Use it to turn on the automatic feature. The button
has an indicator light to show it is on.
OFF:Press this button to turn the automatic feature off.
Time Delay
The automatic mirror has a time delay feature which
prevents unnecessary switching from the night back to
the day position. This delay prevents rapid changing
of the mirror as you drive under lights and through traffic.
Cleaning the Photocells
Use a cotton swab and glass cleaner to clean the
photocells and mirror face when necessary.
Cleaning the Mirror
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.
Outside Manual Mirror
Adjust your outside mirrors so you can see a little of the
side of your vehicle and the area beside and behind
your vehicle from a comfortable driving position.
You can also fold the mirrors in before entering a car
wash. Pull the mirrors in toward the vehicle. Push
the mirrors back out whenfinished.
2-39
2003 - Sonoma OM

Outside Power Mirrors
If your vehicle has this
feature, the controls are
located on the driver’s door
armrest.
Move the selector switch to the left or right to choose
the driver’s or passenger’s mirror, then use the
arrows located on the four-way control pad to move the
mirror in the direction you want the mirror to go.
Put the selector switch back in the center position when
finished adjusting the mirror so that you don’t
accidentally bump into the control pad and get the
mirror out of adjustment.
Outside Convex Mirror
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.
2-40
2003 - Sonoma OM

Outside Heated Mirrors
Your vehicle may be equipped with heated outside
rearview mirrors.
The heated mirror button is
located to the lower right
of the mode knob on
the climate control system.
The button has an
indicator light to indicate if
the heated mirror feature
is on or off.When the heated mirror feature is turned on, the
defogger will warm the mirrors to help clear them of
snow or condensation. The heated mirror feature
will turn off automatically when the mirror is clear.
Storage Areas
Glove Box
To open your glove box, lift the lever on the front of the
glove box and lower the door. The glove box should
not be open while you are driving.
2-41
2003 - Sonoma OM

Overhead Console
If your vehicle has this feature, the overhead console
includes reading lamps, a compartment for a garage
door opener, a temperature and compass display and
a storage compartment for sunglasses.
Reading Lamps
Press the button near
each lamp to turn the
reading lamps on and off.
The lamps can also be
swiveled to point in
the desired direction.
2-42
2003 - Sonoma OM

Installing a Garage Door Opener
To install the garage door opener, do the following:
1. Open the compartment door by pressing the latch
forward.
2. Peel the protective
backing from the hook
and loop patch.
3. Press itfirmly to the back of your garage door
opener, as close to the center of the opener as
possible.
4. Center the garage door opener activation button
over the console door button and press the opener
firmly into place.5. The pegs inside the compartment door are used to
make sure the button on the compartment door will
contact the control button on the garage door
opener.
6. Add one peg at a time until the garage door opener
operates with the compartment door closed when
you press the button.
2-43
2003 - Sonoma OM

7. Now, with the
compartment door
closed, press the
button again to make
sure the garage
door operates
properly.
With the garage door opener positioned properly and
the right number of pegs in place, you should only have
to press the button lightly to operate the opener.
Adjust the position of the garage door opener and add
or remove pegs, as needed, until the opener operates
properly.Temperature and Compass Display
The outside air temperature and the compass are
displayed at the front of the overhead console. The
control buttons are located to the left of the display.
ON/OFF:Turn the display on or off by pressing
this button.
US/MET:When this button is pressed, the temperature
will be displayed in either degrees Farenheit (English)
or Celsius (metric).
Before you turn on the ignition and move the vehicle,
the temperature indicated will be the last outside
temperature recorded with the ignition on.
2-44
2003 - Sonoma OM

If the outside temperature is 37°F(3°C) or lower when
you turn on the ignition, the word ICE will appear
on the display. This is a warning to the driver that road
conditions may be icy, and that appropriate precautions
should be taken.
The compass is self-calibrating, so it does not need to
be manually set. However, when your vehicle is new, the
compass may function erratically. If it does, CAL
(Calibration) will appear on the display. To correct the
calibration, drive in a complete 360°circle three
times and the compass will function normally.
Variance is the different between magnetic north and
geographic north. In some areas, the difference between
the two can be great enough to cause false compass
readings. If this happens, follow these instructions to set
the variance for your particular location:
1. Find your location on the zone map. Record your
zone number.
2. Press and hold both the ON/OFF and the US/MET
buttons. The display will go off.
3. Afterfive seconds, VAR CAL (Variance Calibration)
will appear on the display. When it does, release
both buttons.
4. Press US/MET until your zone number appears on
the display.
5. Press ON/OFF to enter your zone number. Your
variance is now set.
2-45
2003 - Sonoma OM

Sunglasses Storage Compartment
The overhead console has a sunglasses storage
compartment.
Driver Information Center (DIC)
If your vehicle is equipped with a Driver Information
Center (DIC), this system displays the outside air
temperature, compass direction and trip information in
the overhead console.
US/MET (United States/Metric):The US/MET (United
States/metric) button allows you to switch the display
between the English and metric system.
MODE:The MODE button can be used to toggle
between three modes of operation: OFF, COMP/TEMP
and TRIP.
COMP/TEMP/TRIP (Compass/Temperature):The
display provides the outside temperature and one
of eight compass readings to indicate the direction the
vehicle is facing.
Before you turn on the ignition and move the vehicle,
the temperature indicated will be the last outside
temperature recorded with the ignition on. If the outside
temperature is 37°F(3°C) or lower, the display will
toggle between the ICE and the current temperature
every eight seconds. This is a warning to the drive that
road conditions may be icy, and that appropriate
precautions should be taken.
2-46
2003 - Sonoma OM

The compass is self-calibrating, so it does not need to
be manually set. However, if“C”(Calibration) is
displayed, the compass will need to be calibrated. You
may also place the compass in a noncalibrated
mode by pressing the holding the MODE and US/MET
buttons simultaneously while in the COMP/TEMP
mode. After about 10 seconds, the compass will display
C and you can release the buttons. Drive the vehicle
in a complete 360°circle three times at a speed of less
than 5 mph (8 km/h), and the compass will function
normally. Once the calibration is complete, the display
will return to a compass reading.
Variance is the different between magnetic north and
geographic north. In some areas, the difference between
the two can be great enough to cause false compass
readings. If this happens, follow these instructions to set
the variance for your particular location:
1. Find your location on the zone map. Record your
zone number.
2. Press and hold both the MODE and the US/MET
buttons in the COMP/TEMP mode.
3. Afterfive seconds, the compass will acknowledge
the variation mode by displaying the current zone
number. When it does, release both buttons.
2-47
2003 - Sonoma OM

4. Press US/MET until your zone number appears on
the display.
5. Press MODE to set your zone number. Your
variance is now set and the display will return to the
COMP/TEMP mode.
TRIP:Once in the TRIP mode, pressing the MODE
button will step you through the following trip functions:
AVG ECON (Average Economy):The average fuel
economy since the last reset is displayed.
INST ECON (Instantaneous Economy):Instantaneous
fuel economy for the last second of driving is displayed.
RANGE:The display indicates the estimated distance
that can be travelled with the remaining fuel in the tank,
based on the fuel economy for the last few hours of
driving.FUEL USED:The fuel used since the last reset is
displayed.
AVG SPEED (Average Speed):The average speed
since the last reset is displayed.
To reset the trip computer, press the MODE and
US/MET buttons simultaneously for at least two
seconds. All functions will be displayed briefly once the
system is reset. Reset can only be performed in the
AVG ECON, FUEL USED and AVG SPEED modes.
All three modes are reset simultaneously.
2-48
2003 - Sonoma OM