2007 BUICK LACROSSE brake

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.
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Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part is not working, the other
part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on and the parking
brake is not applied, there is a brake problem.
Have your brake system inspected right away.
This light should come
on briey when you turn
the ignition key to RUN.
If it does not come on then, have it xed so it will
be ready to warn you if there is a problem.
When the ignition is on, the brake system warning
light will also come on when you set your
parking brake. The light will stay on if your parking
brake does not release fully. If it stays on after
your parking brake is fully released, it means you
have a brake problem.If the light comes on while you are driving, a
chime will sound and you should pull off the road
and stop carefully. You may notice that the
pedal is harder to push. Or, the pedal may go
closer to the oor. It may take longer to stop. If the
light is still on, have the vehicle towed for
service. SeeTowing Your Vehicle on page 325.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
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Anti-Lock Brake System
Warning Light
Your vehicle may have
the Anti-Lock Brake
System (ABS).
This light will come on when your engine is
started and may stay on for several seconds.
That is normal.
If the ABS warning light comes on and stays on,
there may be a problem with the anti-lock
portion of the brake system. If the brake system
warning light is not on, you still have brakes,
but you do not have anti-lock brakes. SeeBrake
System Warning Light on page 186.
If the light stays on, turn the ignition to OFF. If the
light comes on when you are driving, stop as
soon as possible and turn the ignition off. Then
start the engine again to reset the system. If
the light still stays on, or comes on again whileyou are driving, your vehicle needs service. If the
regular brake system warning light is not on,
you still have brakes, but you do not have anti-lock
brakes. If the regular brake system warning light
is also on, you do not have anti-lock brakes
and there is a problem with your regular brakes.
SeeBrake System Warning Light on page 186.
The ABS warning light should come on briey
when you turn the ignition key to RUN. If the light
does not come on then, have it xed so it will
be ready to warn you if there is a problem.
Traction Control System (TCS)
Warning Light
Your vehicle may
have a Traction
Control System (TCS)
warning light.
If this warning light comes on and stays on, there
may be a problem with the TCS and, if your
vehicle has this feature, the StabiliTrak
®system.
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LEFT REAR TURN LAMP OUT
This message displays when the left rear turn
signal bulb needs to be replaced. SeeTaillamps,
Turn Signal, Sidemarker, Stoplamps and
Back-up Lamps on page 398.
This message displays while the ignition is in RUN.
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
LOW BRAKE FLUID
This message displays when the brake uid level
is low. Have the brake system serviced by
your dealer as soon as possible. SeeBrakes on
page 381for proper uid level.
The brake system warning light also appears on
the instrument panel cluster when this message
appears on the DIC. SeeBrake System Warning
Light on page 186.This message displays and a chime sounds only
while the ignition is in RUN. Press any of the
DIC buttons to acknowledge this message and to
clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
LOW FUEL
This message displays when your vehicle is low
on fuel. Rell the fuel tank as soon as possible.
SeeFuel Gage on page 198andFilling the Tank
on page 346for more information.
The message displays and a chime sounds while
the ignition is in RUN. Press any of the DIC
buttons to acknowledge this message and to clear
it from the screen.
If the condition still exists, the message re-appears
when the engine is turned on.
216

LOW WASHER FLUID
This message displays when the windshield
washer uid is low. Fill the windshield washer
reservoir as soon as possible. SeeEngine
Compartment Overview on page 350for the
location of the windshield washer reservoir. Also,
seeWindshield Washer Fluid on page 380for
more information.
This message displays and a chime sounds only
when the ignition is in RUN. Press any of the
DIC buttons to acknowledge this message and to
clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
PARKING BRAKE ON
This message displays to alert the driver when the
vehicle’s parking brake is on, the ignition is in
RUN, and the vehicle speed is greater than
5 mph (8 km/h). Release the parking brake before
driving. SeeParking Brake on page 117for
more information.
The brake system warning light also appears on
the instrument panel cluster when this message
appears on the DIC. SeeBrake System Warning
Light on page 186.
A chime sounds continuously while this message
is displayed if driving above 5 mph (8 km/h).
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
218

RIGHT REAR TURN LAMP OUT
This message displays when the right rear turn
signal bulb needs to be replaced. SeeTaillamps,
Turn Signal, Sidemarker, Stoplamps and
Back-up Lamps on page 398.
This message displays while the ignition is in RUN.
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
SERVICE ABS SYSTEM
If the vehicle has the Anti-lock Brake System (ABS),
this message displays when the system is not
functioning properly. Have the brake system
serviced by your dealer as soon as possible.
The anti-lock brake system warning light also
appears on the instrument panel cluster when this
message appears on the DIC. SeeAnti-Lock
Brake System Warning Light on page 187.
This message only displays while the ignition is in
RUN. Press any of the DIC buttons to acknowledge
this message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
222

SERVICE BRAKE SYSTEM
This message displays when a problem with the
brake system has been detected. Have your
vehicle serviced by your dealer as soon as
possible.
The brake system warning light also appears on
the instrument panel cluster when this message
appears on the DIC. SeeBrake System Warning
Light on page 186.
This message only displays while the ignition is in
RUN. Press any of the DIC buttons to acknowledge
this message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
SERVICE PARK LAMPS
This message displays when there is a problem
with the park lamps. Check to see if the park lamp
fuse is blown and replace the fuse if necessary.
SeeFuses and Circuit Breakers on page 450and
Instrument Panel Fuse Block on page 450for
more information. If changing the fuse does not
correct the problem, see your dealer.
This message only displays while the ignition is in
RUN. Press any of the DIC buttons to acknowledge
this message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
223

While your vehicle is parked:
Familiarize yourself with all of its controls.
Familiarize yourself with its operation.
Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering
wheel controls if the vehicle has them.
Notice:Before adding any sound equipment
to your vehicle, such as an audio system,
CD player, CB radio, mobile telephone,
or two-way radio, make sure that it can be
added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be
added, it is very important to do it properly.
Added sound equipment may interfere with the
operation of your vehicle’s engine, radio, or
other systems, and even damage them.
Your vehicle’s systems may interfere with the
operation of sound equipment that has
been added.Notice:The chime signals related to safety
belts, parking brake, and other functions of
your vehicle operate through the radio/
entertainment system. If that equipment is
replaced or additional equipment is added to
your vehicle, the chimes may not work. Make
sure that replacement or additional equipment
is compatible with your vehicle before installing
it. SeeAccessories and Modifications on
page 341.
Your vehicle has a feature called Retained
Accessory Power (RAP). With RAP, the audio
system can be played even after the ignition is
turned off. SeeRetained Accessory Power (RAP)
on page 110for more information.
Setting the Time
Press and hold H until the correct hour appears on
the display. AM or PM will appear on the display
(Radio with CD (UpLevel, MP3, and Six-Disc CD)).
Press and hold M until the correct minute
appears on the display. The time can be set with
the ignition on or off.
239