lights BUICK LACROSSE 2007 User Guide

The URPA display is located inside the vehicle,
above the rear window. It has three color-coded
lights that can be seen through the rearview mirror
or by turning around.
{CAUTION:
The Ultrasonic Rear Park Assist (URPA)
system does not replace driver vision.
URPA does not:
Operate above speeds of
3 mph (5 km/h).
Detect objects more than 5 feet
(1.5 meters) behind the vehicle. This
distance may be less during warmer
or humid weather.
Detect objects that are below the
bumper, underneath the vehicle, or
that are very close to the vehicle.
Detect children, pedestrians,
bicyclists, or pets.
CAUTION: (Continued)
CAUTION: (Continued)
So if you do not use proper care before
backing up, you could hit a vehicle, child,
pedestrian, bicyclist, or pet, resulting in
vehicle damage, injury, or death. Even
though the vehicle has the URPA system,
always check carefully before backing up
by checking behind your vehicle.
How the System Works
URPA comes on automatically when the shift lever
is moved into REVERSE (R). When the system
comes on, the three lights on the display will briey
illuminate to let you know that the system is
working. If your vehicle is moving in REVERSE (R)
at a speed greater than 3 mph (5 km/h), the red
light will ash to remind you the system does
not work at this speed.
165

The rst time an object is detected while in
REVERSE (R), a chime will sound and the
following will occur in sequence, depending on the
distance from the object:
At 5 feet (1.5 m) a chime will sound and
one amber light will be lit.
At 40 inches (1.0 m) both amber lights will
be lit.
At 20 inches (0.5 m) a continuous chime will
sound and all three lights (amber/amber/red)
will be lit.
At 1 foot (0.3 m) a continuous chime will
sound and all three lights (amber/amber/red)
will ash.
URPA can detect objects 3 inches (7.6 cm) and
wider, and at least 10 inches (25.4 cm) tall,
but it cannot detect objects that are above trunk
level. In order for the rear sensors to recognize an
object, it must be within operating range.
If the URPA system is not functioning properly, the
display will ash red, indicating that there is a
problem. The light will also ash red while driving if
a trailer is attached to your vehicle, or a bicycle or
object is on the back of, or hanging out of yourtrunk. The light will continue to ash until the trailer
or the object is removed and your vehicle is driven
forward at least 15 mph (25 km/h).
It may also ash red if the ultrasonic sensors are
not kept clean. So be sure to keep your rear
bumper free of mud, dirt, snow, ice and slush or
materials such as paint or the system may
not work properly. If after cleaning the rear bumper
and driving forward at least 15 mph (25 km/h),
the display continues to ash red, see your
GM dealer. For cleaning instructions, seeWashing
Your Vehicle on page 442.
It may also ash red if your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph
(5 km/h). Other conditions that may affect system
performance include things like the vibrations
from a jackhammer or the compression of
airbrakes on a very large truck.
As always, drivers should use care when backing
up a vehicle. Always look behind you, being
sure to check for other vehicles, obstructions and
blind spots.
166

This control has four types of operation.
Automatic can set/change the temperature
only. AUTO and temperature only will
appear on the display.
Semi-Automatic Fan can set/change the
temperature and mode. The fan operates
automatically. The temperature and mode will
appear on the display.
Semi-Automatic Mode can set/change the
temperature and fan speed. The mode
operates automatically. The fan speed and
temperature will appear on the display.
Manual can set/change the temperature,
mode and fan. The fan speed, temperature,
and mode will appear on the display.
If your vehicle has the remote start feature, the
climate control system will automatically regulate
the inside temperature of your vehicle when
the remote start system is activated. Normal
operation and the last setting of the climate control
system will return after the key is turned on.
Manual Operation
During daylight hours, the instrument panel
brightness control might need to be adjusted to
the highest setting, in order to see the indicator
lights for the various climate control settings.
OFF:Press this button to turn the climate control
system off.
yz(Temperature):Press these buttons to
manually adjust the temperature inside the vehicle.
Press the up arrow on the driver or passenger
side to raise the temperature, and press the down
arrow to lower the temperature. The display will
show the selected temperature.
z9(Fan):Press this button to decrease the fan
speed. Pressing the arrows cancels the automatic
operation and places the system in manual or
semi-automatic mode. Press the AUTO button to
return to automatic operation. If the airow seems
low when the fan is at the highest setting, the
passenger compartment air lter may need to be
replaced. For more information seePassenger
Compartment Air Filter on page 178andScheduled
Maintenance on page 462.
174

10. Install a new passenger compartment air lter.
SeeNormal Maintenance Replacement Parts
on page 471for the type of lter to use.
Make sure it slides under the compartment
retainers.
11. Reverse Steps 1 through 8.
For best climate control performance,
re-installation of a clean air lter is required.
Warning Lights, Gages,
and Indicators
This part describes the warning lights and gages
that may be on the vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to
cause an expensive repair or replacement. Paying
attention to the warning lights and gages could also
save you or others from injury.Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. As
you will see in the details on the next few pages,
some warning lights come on briey when you
start the engine just to let you know they are
working. If you are familiar with this section, you
should not be alarmed when this happens.
Gages can indicate when there may be or is a
problem with one of your vehicle’s functions. Often
gages and warning lights work together to let
you know when there is a problem with your
vehicle.
When one of the warning lights comes on and
stays on when you are driving, or when one of the
gages shows there may be a problem, check
the section that tells you what to do about
it. Please follow this manual’s advice. Waiting to
do repairs can be costly – and even dangerous. So
please get to know the warning lights and gages.
They are a big help.
179

SeePassenger Sensing System on page 75for
more on this, including important safety
information.
If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the frontal airbag. See
Airbag Readiness Light on page 182.
Charging System Light
This light comes on
briey when the ignition
is turned on, as a
check to show that it is
working. Then it
should go out.
If it stays on, or comes on while the vehicle is being
driven, a chime will sound and there may be a
problem with the charging system. It could indicate
that the vehicle has a loose accessory belt or
another electrical problem. Have it checked right
away. Driving while this light is on could drain the
battery and result in the engine suddenly stopping.
If the vehicle must be driven a short distance with
the light on, be certain to turn off all unnecessary
electrical loads, such as the radio, heater fan,
air conditioning fan, and heated seats.
185

INT (Interior) LIGHTS KEYS REMOVED
This feature enables the interior lamps in
the vehicle to turn on for about 25 seconds after
the key is removed from the ignition.
Press the option button until INT LIGHTS KEYS
REMOVED appears on the DIC display. Press the
set/reset button to scroll through the following
choices:
OFF:Removing the key from the ignition will not
cause the interior lamps to turn on.
ON (default):Removing the key from the ignition
will cause the interior lamps to be turned on for
about 25 seconds.
Select one of the available choices and press the
option button while it is displayed on the DIC
to select it and move on to the next feature.
DELAYED LOCKING
This feature allows the locking of the vehicle to be
delayed until all of the doors have been closed
for about ve seconds.
When the delayed locking feature is enabled, it
may be activated when the key is out of the
ignition by doing one of the following:
Pressing the driver’s door power lock switch
one time while the driver’s door is open.
Pressing the passenger’s door power lock
switch one time while the passenger’s
door is open.
Pressing the lock button on the remote
keyless entry transmitter one time while any
door is open.
Two chimes will sound to signal that delayed
locking is active.
The doors may be locked immediately by repeating
one of the above actions more than one time.
232

FOB LOCK FEEDBACK
This feature allows you to select the type of
feedback you will receive when locking the vehicle
with the remote keyless entry transmitter.
Press the option button until FOB LOCK
FEEDBACK appears on the DIC display. Press
the set/reset button to scroll through the following
choices:
OFF:There will be no feedback when locking the
vehicle.
LIGHTS:The exterior lamps will ash when you
press the lock button on the remote keyless
entry transmitter.
LIGHTS and HORN (default):The exterior lamps
will ash when you press the lock button on the
remote keyless entry transmitter, and the horn will
sound when the lock button is pressed again
within ve seconds of the previous command.
Select one of the available choices and press the
option button while it is displayed on the DIC
to select it and move on to the next feature.
REMOTE START
If your vehicle has remote start, this feature allows
the remote start to be turned off or on. The
remote start feature allows you to start the engine
from outside of the vehicle using your remote
keyless entry transmitter. See “Remote Vehicle
Start” underRemote Keyless Entry (RKE) System
Operation on page 90for more information.
Press the option button until REMOTE START
appears on the DIC display. Press the set/reset
button to scroll through the following choices:
OFF:The remote start feature will be disabled.
ON (default):The remote start feature will
be enabled.
Select one of the available choices and press the
option button while it is displayed on the DIC
to select it and move on to the next feature.
234

No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver may require at least twice as
much light to see the same thing at night as a
20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the
day in bright sunshine you are wise to wear
sunglasses. Your eyes will have less trouble
adjusting to night. But if you are driving, do not
wear sunglasses at night. They may cut down on
glare from headlamps, but they also make a
lot of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.
304

Engine Coolant
The cooling system in the vehicle is lled with
DEX-COOL®engine coolant. This coolant
is designed to remain in the vehicle for ve years
or 150,000 miles (240 000 km), whichever
occurs rst, if only DEX-COOL
®extended life
coolant is added.
The following explains the cooling system and
how to add coolant when it is low. If there is
a problem with engine overheating or if coolant
needs to be added to the radiator, seeEngine
Overheating on page 367.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®engine coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core, or
radiator corrosion. In addition, the engine
coolant may require changing sooner, at the rst
maintenance service after each 30,000 miles
(50 000 km) or 24 months, whichever occurs
rst. Any repairs would not be covered by your
warranty. Always use DEX-COOL
®(silicate-free)
coolant in your vehicle.
363

W
Warning Lights, Gages and Indicators......... 179
Warnings
DIC Warnings and Messages................... 208
Hazard Warning Flashers......................... 150
Other Warning Devices............................ 150
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Washer Fluid, Low Warning Light................ 197
Wheels
Alignment and Tire Balance..................... 422
Different Size........................................... 420
Replacement............................................ 422
Where to Put the Restraint............................ 50
Windows..................................................... 102
Power...................................................... 103Windshield
Replacement............................................ 401
Washer.................................................... 154
Washer Fluid........................................... 380
Wiper Blade Replacement........................ 401
Wiper Blades, Cleaning............................ 444
Wiper Fuses............................................ 449
Wipers..................................................... 153
Winter Driving............................................. 314
X
XM Radio Messages................................... 278
XM™ Satellite Radio Antenna System......... 284
Y
Your Vehicle and the Environment............... 459
512