GMC SIERRA 2007 Owner's Manual

Automatic Dimming Mirror Operation
The automatic dimming mirror function is turned on
automatically each time the ignition is started.
To operate the automatic dimming mirror, do
the following:
1. Make sure the green indicator light, located to
the left of the on/off button, is lit. If it is not,
press and hold the on/off button for
approximately six seconds until the green light
comes on, indicating that the mirror is in
automatic dimming mode.
2. Turn off the automatic dimming mirror function
by pressing and holding the on/off button for
approximately six seconds, until the green
indicator light turns off.
Compass Calibration
The compass may need calibration if one of the
following occurs:
After approximately ve seconds, the display
does not show a compass heading, N for
North, for example, there may be a strong
magnetic eld 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, CAL must be displayed in the
mirror compass windows. If CAL is not displayed,
push the on/off button for approximately
12 seconds or until CAL is displayed.
The compass can be calibrated by driving the
vehicle in circles at 5 mph (8 km/h) or less until the
display reads 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 the
vehicle is outside of 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, the compass could give
false readings.
To adjust for compass variance, do the following:
1. Find your current location and variance
zone number on the following zone map.
2. Press and hold the on/off button untilaZand
a zone number appears in the display. The
compass is now in zone mode.
3. Keep pressing the on/off button until the
desired zone number appears in the
display. Release the button. After
approximately four seconds of inactivity, the
new zone number will be locked in and
the compass/temperature display will return.
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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.
Automatic Dimming Rearview Mirror
with Compass and Temperature
Display
Your vehicle may have this mirror. When on, an
automatic dimming mirror will dim to the proper
level to minimize glare from lights behind you
after dark.
The mirror also includes a dual display in the
upper right corner of the mirror with the compass
reading and the outside temperature.
Yb:Briey press this button to turn the display
on or off.
Temperature Display
The temperature can be displayed by pressing the
compass/temperature button. Pressing the
compass/temperature button once briey, will
toggle the display reading on and off. To alternate
the temperature reading between Fahrenheit
and Celsius, press and hold the compass/
temperature button for approximately
three seconds until the display blinks F and C.
After approximately ve seconds of inactivity, the
display will stop blinking and display the last
selection made.
If an abnormal temperature reading is displayed
for an extended period of time, see your
dealer. Under certain circumstances, a delay in
updating the temperature is normal.
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Automatic Dimming Mirror Operation
O
On/Off:Press this button to turn the automatic
dimming feature on or off. The indicator light to
the left of the button will turn on to indicate when
the feature is on. Once the mirror is turned off,
it will remain off until it is turned back on, or until
the vehicle is restarted.
Compass Operation
Press the compass/temperature button once
briey to turn the display on or off.
Compass Calibration
See “Compass Calibration” underAutomatic
Dimming Rearview Mirror with OnStar®, Compass
and Temperature Display on page 169for more
information.
Compass Variance
See “Compass Variance” underAutomatic
Dimming Rearview Mirror with OnStar®, Compass
and Temperature Display on page 169for more
information.
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 Mirrors
Adjust your outside mirrors so you can just see
the side of your vehicle and have a clear view of
objects behind you. The mirrors can be folded
in to enter narrow areas.
The use of hood-mounted air deectors and
add-on convex mirror attachments may adversely
affect mirror performance.
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Outside Trailer-Tow Mirrors
If your vehicle has trailer towing type mirrors, they
can be adjusted so you can have a clear view
of the objects behind you. Manually pull out
the mirror head to extend it for better visibility
when towing a trailer.These mirrors can be manually folded forward or
rearward. The lower portion of the mirror is
convex. A convex mirror’s surface is curved so
you can see more from the driver’s seat. The
convex mirror can be adjusted manually to the
driver’s preferred position for better vision.
Your vehicle may have outside heated mirrors
which help clear them of condensation, snow, and
ice. When the rear window defogger button is
pressed, the heated mirrors are also turned on.
Only the upper glass of the mirror is heated.
The lower convex part of the mirror is not heated.
Your mirror may also have a turn signal arrow
that will ash in the direction of the turn or
lane change.
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Outside Power Mirrors
If your vehicle is
equipped with outside
power mirrors, the
controls are located on
the driver’s door
armrest.
Press (A) to select the driver’s side mirror.
Then press the arrows located on the
four-way control pad to adjust the mirror.
Press (A) again to deselect the mirror.
Press (B) to select the passenger’s side
mirror. Then press the arrows located on the
four-way control pad to adjust the mirror.
Press (B) again to deselect the mirror.
This mirror has the following features.
Manual Folding
The mirrors can be manually folded inward to
prevent damage when going through an automatic
car wash. To fold, push the mirror toward the
vehicle. To return the mirror to its original position,
push outward. Be sure to return both mirrors to
their original unfolded position before driving.
Heated Mirrors
The button to turn the heated mirrors on or off is
located on the climate control panel. Press
this button to warm the driver’s and passenger’s
outside rearview mirrors to help clear them of
ice, snow, and condensation.
See “Rear Window Defogger” underDual
Automatic Climate Control System on page 238
for more information.
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Convex Mirror
The passenger’s side mirror may have convex
glass. A convex mirror’s surface is curved so more
can be seen 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.
Outside Power Foldaway Mirrors
If your vehicle is
equipped with outside
power foldaway mirrors,
the controls are
located on the driver’s
door armrest.
Press (A) to select the driver’s side mirror.
Then press the arrows located on the
four-way control pad to adjust the mirror.
Press (A) again to deselect the mirror.
Press (B) to select the passenger’s side
mirror. Then press the arrows located on the
four-way control pad to adjust the mirror.
Press (B) again to deselect the mirror.
Press (C) to fold the mirrors out to the driving
position.
Press (D) to fold the mirrors in to the folded
position.
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If the mirrors are accidentally folded/unfolded
manually, they may shake or utter at normal
driving speeds and may not stay in the unfolded
position. If this happens, you will need to reset the
mirrors. See “Resetting the Power Foldaway
Mirrors” next.
Resetting the Power Foldaway Mirrors
You will need to reset the power foldaway mirrors
if the following occurs:
The mirrors are accidentally obstructed while
folding.
They are accidentally manually
folded/unfolded.
The mirrors will not stay in the unfolded
position.
The mirrors shake and utter at normal
driving speeds.
To reset the power foldaway mirrors, fold and
unfold them one time using the mirror controls.
This will reset them to their normal position.
This mirror has the following features.
Automatic Dimming
The driver’s outside mirror will adjust for the glare
of the headlamps behind you. SeeAutomatic
Dimming Rearview Mirror with OnStar
®, Compass
and Temperature Display on page 169.
Curb View Assist
If your vehicle has the memory package, the
outside mirrors are able to perform the curb view
assist mirror function. This feature may be
useful in allowing the driver to view the curb when
parallel parking. This feature will cause the
passenger’s and/or driver’s mirror to tilt to a
preselected position when the vehicle is in
REVERSE (R).
The passenger’s and/or driver’s mirror will return
to its original position when the vehicle is
shifted out of REVERSE (R), or the ignition is
turned off or to LOCK.
This feature can be turned on or off through the
Driver Information Center (DIC). SeeDriver
Information Center (DIC) on page 267.
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Heated Mirrors
The button to turn the heated mirrors on or off is
located on the climate control panel. Press
this button to warm the driver’s and passenger’s
outside rearview mirrors to help clear them of
ice, snow, and condensation.
See “Rear Window Defogger” underDual
Automatic Climate Control System on page 238
for more information.
Convex Mirror
{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.
The passenger’s side mirror may have convex
glass. A convex mirror’s surface is curved so more
can be seen from the driver’s seat.
Your vehicle may also have a turn signal indicator
on the mirror. An arrow on the mirror will ash
in the direction of the turn or lane change.
179

OnStar®System
OnStar®uses several innovative technologies and
live advisors to provide you with a wide range
of safety, security, information, and convenience
services. If your airbags deploy, the system is
designed to make an automatic call to OnStar
®
Emergency advisors who can request emergency
services be sent to your location. If you lock
your keys in the vehicle, call OnStar
®at
1-888-4-ONSTAR and they can send a signal to
unlock your doors. If you need roadside
assistance, press the OnStar
®button and they
can contact Roadside Service for you.
OnStar
®service is provided to you subject to the
OnStar®Terms and Conditions. You may
cancel your OnStar®service at any time by
contacting OnStar®as provided below. A completeOnStar
®Owners Guide and the OnStar®Terms
and Conditions are included in the vehicle’s
OnStar
®Subscriber glove box literature. For more
information, visit onstar.com or onstar.ca,
contact OnStar
®at 1-888-4-ONSTAR
(1-888-466-7827) or TTY 1-877-248-2080, or
press the OnStar
®button to speak with an
OnStar®advisor 24 hours a day, 7 days a week.
Not all OnStar
®features are available on all
vehicles. To check if your vehicle is equipped to
provide the services described below, or for a
full description of OnStar
®services and system
limitations, see the OnStar®Owner’s Guide in your
glove box or visit onstar.com.
OnStar®Services
For new vehicles with OnStar®, the Safe & Sound
Plan, or the Directions & Connections®Plan is
included for one year from the date of purchase.
You can extend this plan beyond the rst year,
or upgrade to the Directions & Connections
®Plan.
For more information, press the OnStar®button
to speak with an advisor. Some OnStar®services
(such as Remote Door Unlock or Stolen Vehicle
Location Assistance) may not be available
until you register with OnStar
®.
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