2007 GMC SIERRA CLASSIC reset

Outside Power Foldaway Mirrors
If your vehicle is
equipped with this
feature, the controls are
located on the driver’s
door armrest.
Move the upper selector switch to the left or right
to choose the mirror you want to adjust; then
press the dots located on the four-way control pad
to adjust the mirror.
The mirrors may also include a memory function
which works together with the memory seats.
SeeMemory Seat and Mirrors on page 12for more
information.To fold or unfold the mirrors, move the selector
switch, located above the mirror control, to
the middle position. The mirror control will
illuminate. Press the right or left side of the mirror
control to fold or unfold the mirrors. You may
notice the mirror glass adjust as the mirrors fold
in; this is normal. The mirror glass will reposition
itself once the mirrors are unfolded.
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.
186

Resetting the Power Foldaway Mirrors
You will need to reset the power foldaway mirrors
if the following occurs:
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 at least three times using the mirror
controls. This will reset them to their normal
position.
Outside Automatic Dimming Mirror
If your vehicle is equipped with this feature,
the driver’s outside mirror will adjust for the glare
of headlamps behind you. This feature is
controlled by the on and off settings found on the
electrochromic inside mirror.
Outside Curb View Assist Mirrors
If the vehicle has the memory package, the outside
mirrors are able to perform the curb view assist
mirror function. 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). This feature may be useful in
allowing the driver to view the curb when parallel
parking. When the vehicle is shifted out of
REVERSE (R) and a short delay has occurred,
the passenger’s and/or driver’s mirror will return to
its original position.
To change the preselected tilt position, adjust the
mirrors to the desired position while the vehicle
is in REVERSE (R). When the vehicle is shifted
out of REVERSE (R), this new position is saved in
memory as the tilt position.
This feature can be turned on or off through the
Driver Information Center (DIC). SeeDriver
Information Center (DIC) on page 265for more
information.
187

Sunroof
The vehicle may have a power sliding sunroof.
To open or close the sunroof, the ignition must be
on or Retained Accessory Power (RAP) must
be active. SeeRetained Accessory Power (RAP)
on page 137for more information.
The sunroof control is
located on the overhead
console. Press the
rear of the control to
open the sunroof to the
vent position, then
press the rear of the
control again to
express-open the
sunroof.
To close the sunroof, press and hold the front of
the control. The control must be held until the
glass stops moving, so that the sunroof will be fully
seated.The sunroof also has a roller sunscreen that can
be used to block the rays of the sun. The roller
sunscreen can be manually operated with
the sunroof in an open or closed position. To open
the sunscreen, press up to unlatch it and roll it
back. To close, pull it forward and latch it to
the close position.
If the battery has been recharged, disconnected,
or not working, the sunroof may need to be
reprogrammed. To do this, start the vehicle and
press forward on the sunroof control until it moves
to a fully closed position. This resets the sunroof
memory, enabling the sunroof to function properly.
205

Windshield Washer
LQ(Washer Fluid):There is a paddle marked
with the windshield washer symbol at the top
of the multifunction lever. To spray washer uid on
the windshield, push the paddle. The wipers will
clear the window and then either stop or return to
your preset speed.
{CAUTION:
In freezing weather, do not use your
washer until the windshield is warmed.
Otherwise the washer uid can form ice
on the windshield, blocking your vision.
Cruise Control
9(Off):Move the
switch to this position to
turn off the cruise
control system.
If your vehicle is has an Allison
®automatic
transmission, see “Grade Braking and Cruise
Grade Braking (Allison Transmission
®) under
Tow/Haul Mode on page 147for an explanation of
how cruise control interacts with the tap up/down
gear selection, tow/haul and grade braking
systems.
217

Setting Cruise Control
{CAUTION:
If you leave your cruise control on when
you are not using cruise, you might hit a
button and go into cruise when you do
not want to. You could be startled and
even lose control. Keep the cruise control
switch off until you want to use cruise
control.
1. Move the cruise control switch to on.
2. Get up to the speed you want.
3. Press the set button at the end of the lever
and release it.
4. Take your foot off the accelerator pedal.The cruise symbol on
the instrument panel will
come on when the
cruise control is
engaged.
Resuming a Set Speed
Suppose you set your cruise control at a desired
speed and then you apply the brake. This, of
course, disengages the cruise control. But you do
not need to reset it.
Once you are going about 25 mph (40 km/h) or
more, you can move the cruise control switch
briey from on to resume/accelerate.
You will go right back up to your chosen speed
and stay there.
If you hold the switch at resume/accelerate the
vehicle will keep going faster until you release the
switch or apply the brake. So unless you want
to go faster, do not hold the switch at
resume/accelerate.
219

Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour
(km/h). Your odometer shows how far your vehicle
has been driven, in either miles (used in the
United States) or kilometers (used in Canada).
Engine Hour Meter Display
The Driver Information Center (DIC) can also
display the number of hours the engine has run.
To display the hour meter, turn the ignition
off, press and hold the reset button for at least
four seconds. The hour meter will be displayed for
up to 30 seconds, or until the ignition is turned
on. SeeDIC Operation and Displays on page 266
for more information.
Trip Odometer
The trip odometer can tell you how far your
vehicle has been driven since you last set the trip
odometer to zero.
Press the reset button, located on the instrument
panel cluster next to the trip odometer display,
to toggle between the trip odometer and the
regular odometer. Holding the reset button for
approximately one second while the trip odometer
is displayed will reset it.
To display the odometer reading with the ignition
off, press the reset button.
SeeDIC Operation and Displays on page 266for
more information.
Tachometer
Your tachometer displays the engine speed in
revolutions per minute (rpm). See “Grade Braking
(Allison Transmission
®)” underTow/Haul Mode
on page 147for more information.
Notice:If you operate the engine with the
tachometer in the solid red area, your vehicle
could be damaged. The damages would
not be covered by your warranty. Do not
operate the engine in the solid red area.
246

Here are some situations you may experience with
your fuel gage. None of these indicate a problem
with the fuel gage.
At the gas station, the fuel pump shuts off
before the gage reads full.
It takes a little more or less fuel to ll up than
the fuel gage indicated. For example, the
gage may have indicated the tank was half full,
but it actually took a little more or less than
half the tank’s capacity to ll the tank.
The gage goes back to empty when you turn
off the ignition.
If you have a diesel engine, see “Fuel Gage” in
the Diesel Engine Supplement.
Low Fuel Warning Light
The light next to the fuel gage will come on briey
when you are starting the engine.
This light comes on when the fuel tank is low on
fuel. To turn it off, add fuel to the fuel tank.
SeeFuel on page 470.
Driver Information Center (DIC)
The Driver Information Center (DIC) display is
located on the instrument panel cluster, below the
speedometer. If your vehicle has DIC buttons,
they are located on the steering wheel. The DIC
can display information such as the trip odometer,
fuel economy, customization features, and
warning/status messages.
If your vehicle does not have DIC steering wheel
buttons, you will not have all of the features
listed. Scroll through the odometer, trip odometer,
engine hours, and selected range if your vehicle
has an Allison Transmission
®by pressing the
trip odometer reset stem located on the instrument
panel cluster. Turn off, or acknowledge, DIC
messages by pressing the trip odometer reset
stem. SeeSpeedometer and Odometer on
page 246for information on features for vehicles
without DIC buttons.
265

If your vehicle has an Allison Transmission®and
the shift lever is in the MANUAL MODE (M)
position, the DIC will display the current gear
range. The DIC will also display the gear range as
it is shifted up or down. For example, if the gear
range is currently set to 6, the DIC will display
(6)54321. When thegear range is shifted down
one time, the DIC will display 6 (5)4321. See
Automatic Transmission Operation on page 140for
more information.
3(Trip Information):Press this button to
display the odometer, trip odometers, timer, engine
hours, and selected range if your vehicle has an
Allison Transmission
®.
t(Fuel Information):Press this button to
display the current range, fuel used, average fuel
economy, and engine oil life.
4(Customization):Press this button to access
the vehicle settings menu and customize the
personal settings on your vehicle.
r(Select):Press this button to reset certain
DIC functions and set your customization settings.
Pressing any of the four DIC buttons will
acknowledge DIC messages and clear them from
the DIC display.
DIC Operation and Displays
The Driver Information Center (DIC) comes on
when the ignition is on. After a short delay, the DIC
will display the information that was last displayed
before the engine was turned off.
The DIC has different modes which can be
accessed by pressing the four DIC buttons located
on the steering wheel. These buttons are trip
information, fuel information, customization, and
select. The button functions are detailed in
the following pages.
266