brake sensor BUICK RANDEZVOUS 2003 Owner's Manual

In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.
•Air bags are designed to inflate only once. After an
air bag inflates, you’ll need some new parts for your
air bag system. If you don’t get them, the air bag
system won’t be there to help you in another crash. A
new system will include air bag modules and possibly
other parts. The service manual for your vehicle
covers the need to replace other parts.
•Your vehicle is equipped with an electronic frontal
sensor, which helps the sensing system distinguish
between a moderate frontal impact and a more
severe frontal impact. Your vehicle is also equipped
with a crash sensing and diagnostic module, which
records information about the frontal air bag system.
The module records information about the readiness
of the system, when the system commands air bag
inflation and driver’s safety belt usage at deployment.
The module also records speed, engine RPM, brake
and throttle data.
•Let only qualified technicians work on your air bag
systems. Improper service can mean that an air bag
system won’t work properly. See your dealer for
service.
Notice:If you damage the covering for the driver’s
or the right front passenger’s air bag, or the air
bag covering on the driver’s and right front
passenger’s seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right front
passenger’s air bag, or both the air bag module
and seatback for the driver’s and right front
passenger’s side impact air bag. Do not open or
break the air bag coverings.
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REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your vehicle
is moving forward could damage your transaxle.
Shift to REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transaxle, seeIf
You Are Stuck: In Sand, Mud, Ice or Snow on
page 4-30.
NEUTRAL (N):In this position, your engine doesn’t
connect with the wheels. To restart when you’re already
moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
{CAUTION:
Shifting into a drive gear while your engine is
“racing”(running at high speed) is dangerous.
Unless your foot isfirmly on the brake pedal,
your vehicle could move very rapidly. You
could lose control and hit people or objects.
Don’t shift into a drive gear while your engine
is racing.Notice:Damage to your transaxle caused by
shifting into a drive gear with the engine racing isn’t
covered by your warranty.
AUTOMATIC OVERDRIVE (D):This position is for
normal driving. If you need more power for passing, and
you’re:
•Going less than 35 mph (55 km/h), push your
accelerator pedal about halfway down.
•Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
You’ll shift down to the next gear and have more power.
Notice:If your vehicle seems to start up rather
slowly, or if it seems not to shift gears as you go
faster, something may be wrong with a transaxle
system sensor. If you drive very far that way, your
vehicle can be damaged. So, if this happens,
have your vehicle serviced right away. Until then,
you can use SECOND (2) when you are driving less
than 35 mph (55 km/h) and AUTOMATIC OVERDRIVE
(D) for higher speeds.
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Warm-Up Shift
Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35°F(2°C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed until
the engine is warmed up. This is a normal condition
designed to provide heat to the passenger compartment
and defrost the windows more quickly.
THIRD (3):This position is also used for normal driving,
but it offers more power and lower fuel economy than
AUTOMATIC OVERDRIVE (D).
Here are some times you might choose THIRD (3)
instead of AUTOMATIC OVERDRIVE (D):
•When driving on hilly, winding roads.
•When towing a trailer (so there is less shifting
between gears).
•When going down a steep hill.
SECOND (2):This position gives you more power, but
lower fuel economy than THIRD (3). You can use
SECOND (2) on hills. It can help control your speed as
you go down steep mountain roads, but then you
would also want to use your brakes off and on.
Notice:Don’t drive in SECOND (2) for more than 25
miles (40 km), or at speeds over 55 mph (90 km/h),
or you can damage your transaxle. Use THIRD (3) or
AUTOMATIC OVERDRIVE (D) as much as possible.Don’t shift into SECOND (2) unless you are going
slower than 65 mph (105 km/h) or you can damage
your engine.
Notice:If your vehicle seems to start up rather
slowly, or if it seems not to shift gears as you go
faster, something may be wrong with a transaxle
system sensor. If you drive very far that way, your
vehicle can be damaged. So, if this happens,
have your vehicle serviced right away. Until then,
you can use SECOND (2) when you are driving less
than 35 mph (55 km/h) and THIRD (3) for higher
speeds.
FIRST (1):This position gives you even more power,
but lower fuel economy than SECOND (2). You can use
it on very steep hills, or in deep snow or mud. If the
shift lever is put in FIRST (1), the transaxle won’t
downshift intofirst gear until the vehicle is going slow
enough.
Notice:If your front wheels won’t turn, don’t try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against a solid
object. You could damage your transaxle. Also,
if you stop when going uphill, don’t hold your
vehicle there with only the accelerator pedal. This
could overheat and damage the transaxle. Use your
brakes to hold your vehicle in position on a hill.
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5(Headlamps):Turning the control to this position
turns on the headlamps together with the previously
listed lamps and lights.
Lamps on Reminder
If the driver’s door is opened and you turn the ignition to
OFF while leaving the lamps on, you will hear a
warning chime.
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
first sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it isn’t covered. The DRL
system will make your reduced intensity high-beam
headlamps come on in daylight when:
•The ignition is on,
•the exterior lamps control is in AUTO, and
•the shift lever is not in PARK (P).When the DRL are on, only your reduced intensity
high-beam headlamps will be on. Your instrument panel
won’t be lit up.
When it’s dark enough outside, the exterior lamps will
come on automatically. When it’s bright enough outside,
the exterior lamps will go out and the DRL will turn
on. Of course, you may still turn on the headlamps any
time you need to.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Automatic Headlamp System
When the exterior lamps control is turned to AUTO, the
headlamps and parking lamps will come on
automatically when it is dark enough outside.
The lamps will come on automatically if:
•It is dark enough outside,
•the ignition is in ON,
•the parking brake is released, and
•the exterior lamps control is in the AUTO position.
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URPA can be turned off by
pressing the rear park aid
disable switch located
in the instrument panel
switchbank. When
the system is disabled an
indicator light will glow
on the switch. You will not
see any lights on the
rear display if the switch is
in the off position.
How the System Works
Unless disabled, the URPA will turn on automatically
when the shift lever is moved into REVERSE (R). When
the system turns on, the three lights on the display
will illuminate for one and a half seconds 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 willflash to remind you that the system
does not work at speed greater than 3 mph (5 km/h).If an object is detected at a REVERSE (R) speed of
less than 3 mph (5 km/h), one of the following will occur:
Description English Metric
amber light 5 ft. 1.5 m
amber/amber lights 40 in. 1.0 m
amber/amber/red lights &
continuous chime20 in. 0.5 m
amber/amber/red lights
flashing & continuous
chime1 ft 0.3 m
A chime will sound thefirst time an object is detected
between 20 inches (0.5 m) and 5 feet (1.5 m) away.
URPA cannot detect objects that are above liftgate level.
In order for the rear sensors to recognize an object, it
must be within detection range behind the vehicle.
When the System Does Not Seem to Work
Properly
The light mayflash red when the vehicle is in
REVERSE (R) if the ultrasonic sensors are not kept
clean. So be sure to keep your rear bumper free of mud,
dirt, snow, ice and slush. Other conditions that may
affect system performance include things like the
vibrations from a jackhammer or the compression of air
brakes on a very large truck. If after cleaning the
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Underhood Fuse Block
This fuse block is located in the engine compartment,
on top of the windshield washerfluid reservoir.
SeeEngine Compartment Overview on page 5-10for
more information on location.
The fuses marked spare are available if a replacement
fuse is needed.
To remove the cover, press the two tabs in and lift up
the cover.
Fuse Usage
1 Fuel Pump
2 Air Conditioning Compressor Clutch
3 Horn
4Engine Controls-Emissions and
Sensors
5Power Control Module
(PCM)-Battery Power
6Anti-Lock Brakes (ABS) Control
Module
7 Transaxle Solenoids
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