2007 BUICK LUCERNE Owner's Manual

Resuming a Set Speed
Suppose you set the cruise control at a desired
speed and then you apply the brake. This shuts off
the cruise control, but it does not need to be reset.
Once you are driving about 25 mph (40 km/h) or
more, press the +RES button on the steering
wheel. The vehicle will go back to your 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 your new
desired speed, then release it.
To increase vehicle speed in small increments,
press the +RES button.
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 you want, then release it.
To slow down in very small amounts, press
the SET– button on the steering wheel
briey. Each time this is done, you 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, the
vehicle will slow down to the cruise speed you
set earlier.
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Using Cruise Control on Hills
How well the cruise control will work on hills
depends upon the vehicle speed, load and the
steepness of the hills. When going up steep hills,
you may have to step on the accelerator pedal
to maintain your speed. When going downhill, you
may have to brake or shift to a lower gear to
keep your speed down. Of course, applying the
brake ends 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.
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 Lamps
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The exterior lamps control has four positions:
O(Off):Turn the control to this position to turn
off the exterior lamps.
AUTO (Automatic):Turn the control to this
position to automatically turn on the headlamps at
normal brightness, together with the following:
Parking 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
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
License Plate Lamps
Instrument Panel Lights
-(Fog Lamps):Push the exterior lamps control
in to turn on the fog lamps.
SeeFog Lamps on page 173.
Wiper Activated Headlamps
This feature activates the headlamps and parking
lamps after the windshield wipers are turned
on and have completed eight wipe cycles within
four minutes.
When the ignition is turned to OFF, the
wiper-activated headlamps immediately turn off.
The wiper-activated headlamps also turn off if the
windshield wipers are turned off.
Headlamps on Reminder
If you leave the exterior lamp buttons for the
headlamps or parking lamps on, remove the key
from the ignition and open the driver’s door,
you will hear a continuous warning chime. The
chime will turn off when the lamps are turned off.
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Daytime Running Lamps (DRL)
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
monitors the exterior light level for the operation
of DRL, so be sure it is not covered.
The DRL system will make your low-beam
headlamps turn on at reduced brightness in
daylight when the following conditions are met:
The ignition is on.
The exterior lamp button for the headlamps
is off.
The automatic transaxle is not in PARK (P).When the DRL are on, only your low-beam
headlamps will be on. The parking lamps, taillamps,
sidemarker and other lamps will not be on.
When it is dark enough outside, your low-beam
headlamps will come on. The other lamps that turn
on with your headlamps will also turn on. When
it is bright enough outside, the regular lamps
will go off, and your low-beam headlamps change
to the reduced brightness of DRL.
To turn off all exterior lighting at night when you
are parked, turn the exterior lamp control to the
off position. The exterior lamps will turn back
on automatically when you move the transaxle out
of PARK (P). SeeExterior Lamps on page 170
for more information.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
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Fog Lamps
-(Fog Lamps):If your vehicle has fog lamps,
the 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.
Your ignition must be in RUN for the fog lamps to
illuminate.
To turn the fog lamps on, press the exterior lamps
button. A light will come on in the instrument
panel cluster to let you know that the fog lamps
are on. SeeInstrument Panel Cluster on page 194.
Press the exterior lamps button again to turn the
fog lamps off.
The ignition must be in RUN and the parking
lamps must be on for your fog lamps to work.
The fog lamps will go off while you change
to high-beam headlamps.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
Cornering Lamps
If your vehicle has this feature, the cornering lamps
come on when: the headlamps or parking lamps are
on, the vehicle is not in PARK (P), and you signal a
turn with the turn signal/multifunction lever. They
provide more light for cornering.
Exterior Lighting Battery Saver
If the exterior lamp button has been left on, the
exterior lamps will turn off about 10 minutes after
the ignition is turned to OFF and a door has been
opened. This protects against draining the battery
in case you have accidentally left the headlamps or
parking lamps on. If you need to leave the lamps on
for more than 10 minutes, use the manual control to
turn the lamps back on after the ignition is turned to
OFF and any door is opened.
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Instrument Panel Brightness
D(Instrument Panel Brightness):This feature
controls the brightness of the instrument panel
lights.
The knob for this control is located next to the
exterior lamps control.
Push the knob in and release when it pops out.
Turn the knob clockwise to increase the brightness
of the instrument panel lights and counter clockwise
to decrease the brightness. Turning the knob
completely clockwise to the detent will turn on the
courtesy lamps.
Courtesy Lamps
When any door is opened, several lamps turn on
making it easier for you to enter and exit the
vehicle. Turn the instrument panel brightness
control completely clockwise to manually turn
on these lamps.
Entry Lighting
If it is dark enough outside when you press the
unlock button on the remote keyless entry
transmitter, the interior courtesy lamps will turn on
and stay on for about 40 seconds. The lamps can
be turned off immediately by pressing the lock
button on the remote keyless entry transmitter,
turning the ignition key to RUN or activating the
power door locks.
Delayed Entry Lighting
The interior lamps will turn on if you open the door
when it is dark enough outside. When you close the
door with the ignition off, the interior lamps will stay
on for up to 25 seconds or until the ignition is turned
to an on position. When the lamps turn off as a
result of the 25 second timer or the ignition switch
being turned on, the lighting will deactivate by way
of the theater dimming effect. Locking the doors will
override the delayed entry lighting feature and the
lamps will turn off right away.
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Theater Dimming
This feature allows for a three to ve-second fade
out of the courtesy lamps instead of immediate
turn off.
Delayed Exit Lighting
If it is dark enough outside when you remove
the key from the ignition, the interior lamps will turn
on and stay on for about 25 seconds. This will
give you time to nd the door pull handle or lock
switches. Once the key is inserted into the ignition,
the exit lighting will be cancelled and the lighting
will fade out.
Perimeter Lighting
If it is dark enough outside when the unlock button
on the remote keyless entry transmitter is pressed,
the DRL, parking lamps and back-up lamps will
come on.
This feature can be programmed on for various
amounts of time in seconds for each transmitter.
SeeDIC Vehicle Customization on page 231
for information on programming.
Front Reading Lamps
The front reading lamps, located on the headliner,
are turned on or off by pressing one of the buttons
located near each lamp.
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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.A high electrical load occurs when several of the
following loads are on: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans,
trailer loads, and loads plugged into accessory
power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s
output and the vehicle’s electrical needs. It can
increase engine idle speed to generate more
power, whenever needed. It can temporarily
reduce the power demands of some accessories.
Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action
may be noticeable to the driver. If so, a Driver
Information Center (DIC) message might be
displayed, such as Battery Saver Active or Service
Battery Charging System. If this message is
displayed, it is recommended that the driver
reduce the electrical loads as much as possible.
SeeDIC Warnings and Messages on page 221.
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