light GMC ACADIA 2007 Service Manual

Headlamp High/Low-Beam Changer
To change the headlamps from low beam to
high beam, push the turn signal/multifunction
lever toward the front of the vehicle.
This light on the
instrument panel
cluster comes on if
the high beam lamps
are turned on while
the ignition is on.
To change the headlamps from high beam to
low beam, pull the turn signal lever toward the
rear of the vehicle.
Flash-to-Pass
With the turn signal lever in the low-beam position,
pull the lever toward you momentarily to switch
to high-beam (to signal that you are going to pass).
If the headlamps are on, they will return to
low-beam when the lever is released.
This feature operates even when the headlamps
are off.
Windshield Wipers
Be sure to clear ice and snow from the wiper
blades before using them. If they are frozen to the
windshield, gently loosen or thaw them. Damaged
wiper blades may not clear the windshield well,
making it harder to see and drive safely. If the
blades do become damaged, install new blades or
blade inserts. For more information, seeWindshield
Wiper Blade Replacement on page 434.
Heavy snow or ice can overload the wiper motor. A
circuit breaker will stop the motor until it cools down.
Clear away snow or ice to prevent an overload.
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The windshield wipers are controlled by turning
the band with the wiper symbol.
8(Mist):Turn the band to mist for a single wiping
cycle. Hold it there until the wipers start. Then let
go. The wipers will stop after one wipe. Hold the
band on mist longer, for more wipe cycles.
9(Off):To stop the wipers, move the band to off.
6(Delay):The wiper speed can be set for a long
or short delay between wiping cycles. This can be
very useful in light rain or snow. Turn the band to
choose the delay time. The closer to the top of the
lever, the shorter the delay.
6(Low Speed):Turn the band away from
you to the rst solid band past the delay settings,
for steady wiping at low speed.
?(High Speed):Turn the band further, to the
second solid band past the delay settings, for
high-speed wiping.
Windshield Washer
J(Washer Fluid):Press and release this
paddle, located at the top of the turn signal/
multifunction lever, to spray washer uid on the
windshield. The wipers clear the windshield
and either stop or return to the preset speed.
The ignition key must be in ACCESSORY or
ON for this to work. SeeWindshield Washer
Fluid on page 420Windshield Washer Fluid.
{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.
WASHER FLUID LOW ADD FLUID is displayed
on the Driver Information Center (DIC) when
the washer uid is low. SeeDIC Warnings and
Messages on page 244.
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Setting Cruise Control
Cruise control will not work if your parking brake
is set, or if the master cylinder brake uid
level is low.
The cruise control light on the instrument panel
cluster comes on after the cruise control has
been set to the desired speed.
{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. Press the cruise control on/off button.
2. Get up to the speed desired.
3. Press and release the SET– button located
on the steering wheel.
4. Take your foot off the accelerator.
Resuming a Set Speed
Suppose you set your cruise control at a desired
speed and then you apply the brake. This
shuts off the cruise control. But you do not need
to reset it.
Once you are driving about 25 mph (40 km/h) or
more, press the +RES button on your steering
wheel. The vehicle will go back to the previously
chosen speed and stay there.
Increasing Speed While Using
Cruise Control
To increase the cruise speed while using cruise
control:
Press and hold the +RES button on the
steering wheel until you reach the desired
speed, then release it.
To increase vehicle speed in small increments,
press the +RES button.
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Reducing Speed While Using
Cruise Control
To reduce your speed while using cruise control:
Press and hold the SET– button on the
steering wheel until you reach the lower speed
desired, then release it.
To slow down in very small amounts, press
the SET– button on the steering wheel
briey. Each time this is done, the vehicle will
go about 1 mph (1.6 km/h) slower.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to increase vehicle
speed. When you take your foot off the pedal,
your vehicle will slow down to the previously set
cruise speed.
Using Cruise Control on Hills
How well your cruise control will work on hills
depends upon the vehicle speed, load, and the
steepness of the hills. When going up steep hills,
you might have to step on the accelerator pedal
to maintain the vehicle speed. When going
downhill, you might have to brake or shift to a
lower gear to keep the vehicle speed down.
Of course, applying the brake turns off the cruise
control. Many drivers nd this to be too much
trouble and do not use cruise control on steep hills.
Ending Cruise Control
There are three ways to end cruise control:
Step lightly on the brake pedal.
Press the[(cancel) button on the steering
wheel.
Press theT(on/off) button on the steering
wheel.
Erasing Speed Memory
The cruise control set speed memory is erased by
turning off the cruise control or the ignition.
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Exterior Lamps
The exterior lamps
control is located on
the instrument panel
to the left of the
steering wheel.
It controls the following systems:
Headlamps
Taillamps
Parking Lamps
License Plate Lamps
Instrument Panel Lights
Fog LampsThe exterior lamps control has four positions:
O(Off):Briey turn the control to this position
to turn off the automatic light control. Briey turn
to this position again to turn automatic light control
on again.
AUTO (Automatic):Turn the control to this
position to automatically turn on the headlamps
at normal brightness, together with the following:
Parking Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
;(Parking Lamps):Turn the control to this
position to turn on the parking lamps together with
the following:
Taillamps
License Plate Lamps
Instrument Panel Lights
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2(Headlamps):Turn the control to this position
to turn on the headlamps together with the
following lamps listed below. A warning chime will
sound if you open the driver’s door when the
ignition switch is off and the headlamps are on.
Parking Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
-(Fog Lamps):Push the fog lamps control in
to turn on the fog lamps.
SeeFog Lamps on page 186.
Delayed Headlamps
The delayed headlamps feature provides a period
of exterior lighting as you leave the area around
your vehicle. The feature is activated when
the headlamps are on due to the automatic
headlamps control feature described previously in
this section, and when the ignition is turned off.
Your headlamps will then remain on until the
exterior lamps control is moved to the parking
lamps position or until the pre-selected delayed
headlamp lighting period has ended.
If you turn off the ignition with the headlamps
switch in the parking lamps or headlamps position,
the delayed headlamps cycle will not occur.
To disable the delayed headlamps feature or
change the time of delay, seeDIC Vehicle
Customization (With DIC Buttons) on page 255.
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Daytime Running Lamps (DRL)/
Automatic Headlamp System
Daytime Running Lamps (DRL) can make it easier
for others to see the front of your vehicle during
the day. DRL can be helpful in many different
driving conditions, but they can be especially
helpful in the short periods after dawn and before
sunset. Fully functional daytime running lamps
are required on all vehicles rst sold in Canada.
A light sensor on top of the instrument panel
makes the DRL work, so be sure it is not covered.
The DRL system’s automatic headlamp control
will make the low-beam headlamps come on at a
reduced brightness when the following conditions
are met:
The ignition is in the ON position.
The exterior lamps control is in AUTO.
The engine is running.When the DRL are on, only the low-beam
headlamps, at a reduced level of brightness, will
be on. The headlamps, taillamps, sidemarker,
and other lamps will not be on. The instrument
panel and cluster will also not be lit.
When it is dark enough outside, the low-beam
headlamps will turn off and the headlamps
and parking lamps will turn on. The other lamps
that come on with the headlamps will also
come on.
When it is bright enough outside, the headlamps
will go off and the DRL will come on.
As with any vehicle, you should turn on the
regular headlamp system when it is needed.
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Fog Lamps
Use the fog lamps for better vision in foggy or
misty conditions.
-(Fog Lamps):The fog lamps button is located
on the exterior lamps control. The exterior lamps
control is located on the instrument panel to the
left of the steering column.
The ignition must be on for the fog lamps to work.
Press the exterior lamps button to turn the fog
lamps on or off. A light will come on in the
instrument panel cluster when the fog lamps
are in use.
When the headlamps are changed to high-beam,
the fog lamps will turn off. The fog lamps come
back on again when the high-beam headlamps are
turned off.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
Instrument Panel Brightness
D(Instrument Panel Brightness):The knob
with this symbol on it is located next to the exterior
lamps control. Push the knob in all the way until
it pops out and then turn the knob clockwise
to brighten or counterclockwise to dim the lights.
Push the knob back in when nished.
Courtesy Lamps
When a door is opened, the courtesy lamps
automatically come on. They make it easy for you
to enter and leave your vehicle. You can also
manually turn these lamps on by fully turning the
instrument panel brightness control clockwise.
The reading lamps, located on the headliner, can
be turned on or off independent of the automatic
courtesy lamps, when the doors are closed.
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Entry Lighting
Your vehicle may have courtesy lamps that will
come on and stay on for a set time whenever
the unlock symbol is pressed on the Remote
Keyless Entry (RKE) Transmitter, if the vehicle
has one.
If a door is opened, the lamps will stay on while
it is open and then turn off automatically about
25 seconds after the door is closed. If the
unlock symbol is pressed and you do not
open a door, the lamps will turn off after about
20 seconds.
Entry lighting includes a feature called theater
dimming. With theater dimming, the lamps do not
turn off at the end of the delay time. Instead,
they slowly dim after the delay time until they go
out. The delay time is canceled if you turn the
ignition key to ON or press the power door
lock switch. The lamps will dim right away.
When the ignition is on, illuminated entry is
inactive, which means the courtesy lamps will
not come on unless a door is opened.
Delayed Entry Lighting
Delayed entry lighting illuminates the interior for
a period of time after all the doors have been
closed.
The ignition must be off for delayed entry lighting
to work. Immediately after all the doors have
been closed, the delayed entry lighting feature
will continue to work until one of the following
occurs:
The ignition is in ON.
The doors are locked.
An illumination period of 25 seconds
has elapsed.
If during the illumination period a door is opened,
the timed illumination period will be canceled
and the interior lamps will remain on because a
door is open.
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Delayed Exit Lighting
This feature illuminates the interior for a period of
time after the key is removed from the ignition.
The ignition must be off for delayed exit lighting to
work. When the key is removed, interior illumination
will activate and remain on until one of the following
occurs:
The ignition is in ON.
The power door locks are activated.
An illumination period of 20 seconds
has elapsed.
If during the illumination period a door is opened,
the timed illumination period will be canceled
and the interior lamps will remain on because a
door is open.
Parade Dimming
The instrument panel has an added feature called
parade mode. It automatically prohibits the
dimming of the instrument panel displays during
the daylight while the headlamps are on so
that you will still be able to see the displays.
Reading Lamps
The vehicle has reading lamps that also act as the
dome lamp. Press the button to turn them on and off.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC),
you may see the voltage move up or down. This
is normal. If there is a problem, an alert will be
displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very
high electrical loads.
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