sensor BUICK TERRAZA 2007 Owner's Manual

In addition, your vehicle has “dual stage” frontal
airbags, which adjust the restraint according
to crash severity. For moderate frontal impacts,
these airbags inate at a level less than full
deployment. Your vehicle has electronic frontal
sensors, which help the sensing system distinguish
between a moderate frontal impact and a more
severe frontal impact. For more severe frontal
impacts, full deployment occurs. If the front of your
vehicle goes straight into a wall that does not
move or deform, the threshold level for the
reduced deployment is about 12 to 18 mph
(19 to 29 km/h), and the threshold level for
a full deployment is about 18 to 25 mph
(29 to 40.2 km/h). The threshold level can vary,
however, with specic vehicle design, so that it can
be somewhat above or below this range.Frontal airbags may inate at different crash
speeds. For example:
If the vehicle hits a stationary object, the
airbags could inate at a different crash speed
than if the vehicle hits a moving object.
If the vehicle hits an object that deforms, the
airbags could inate at a different crash
speed than if the vehicle hits an object that
does not deform.
If the vehicle hits a narrow object (like a pole),
the airbags could inate at a different crash
speed than if the vehicle hits a wide object
(like a wall).
If the vehicle goes into an object at an angle,
the airbags could inate at a different crash
speed than if the vehicle goes straight into the
object.
The frontal airbags (driver and right front
passenger) are not intended to inate during
vehicle rollovers, rear impacts, or in many side
impacts.
82

Passenger Sensing System
Your vehicle has a passenger sensing system.
The passenger airbag status indicator on the
instrument panel will be visible when you turn your
ignition key to RUN or START.
The words ON and OFF or the symbol for on and
off, will be visible during the system check.
When the system check is complete, either the
word ON or the word OFF, or the symbol for on or
the symbol for off will be visible. SeePassenger
Airbag Status Indicator on page 211.The passenger sensing system will turn off the
right front passenger’s frontal airbag and side
impact airbag (if equipped) under certain
conditions. The driver’s airbags or the second row
side impact airbags (if equipped) are not part of
the passenger sensing system.
The passenger sensing system works with sensors
that are part of the right front passenger’s seat and
safety belt. The sensors are designed to detect the
presence of a properly-seated occupant and
determine if the passenger’s airbag or airbags
should be enabled (may inate) or not.
Accident statistics show that children are safer if
they are restrained in the rear rather than the front
seat. We recommend that child restraints be
secured in a rear seat, including an infant riding in
a rear-facing infant seat, a child riding in a
forward-facing child seat and an older child riding
in a booster seat.
Your vehicle has a rear seat that will accommodate
a rear-facing child restraint. A label on your sun
visor says, “Never put a rear-facing child seat
in the front.” This is because the risk to the
rear-facing child is so great, if the airbag deploys.
United StatesCanada
86

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to the front
or sides of the vehicle that could keep the
airbags from working properly?
A:Yes. If you add things that change your
vehicle’s frame, bumper system, height,
front end or side sheet metal, they may keep
the airbag system from working properly.
Also, the airbag system may not work properly
if you relocate any of the airbag sensors. If
you have any questions about this, you should
contact Customer Assistance before you
modify your vehicle. The phone numbers and
addresses for Customer Assistance are in
Step Two of the Customer Satisfaction
Procedure in this manual. SeeCustomer
Satisfaction Procedure on page 526.
Q:Because I have a disability, I have to get
my vehicle modied. How can I nd out
whether this will affect my airbag system?
A:Changing or moving any parts of the
front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel,
the instrument panel, or airbag wiring can
affect the operation of the airbag system. If
you have questions, call Customer Assistance.
The phone numbers and addresses for
Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this
manual. SeeCustomer Satisfaction Procedure
on page 526.
92

SECOND (2):This position reduces vehicle speed
more than DRIVE (D) without using your brakes.
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:Driving in SECOND (2) for more than
25 miles (40 km) or at speeds over 55 mph
(90 km/h) may damage the transaxle. Also,
shifting into SECOND (2) at speeds above
65 mph (105 km/h) can cause damage. Drive in
THIRD (3) or DRIVE (D) instead of SECOND (2).
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 reduces vehicle speed
even more than SECOND (2) without using your
brakes. You can use it on very steep hills, or in
deep snow or mud. If the shift lever is put in
FIRST (1) while the vehicle is moving forward, the
transaxle will not shift into rst gear until the vehicle
is going slowly enough.
Notice:Spinning the tires or holding the
vehicle in one place on a hill using only the
accelerator pedal may damage the transaxle. If
you are stuck, do not spin the tires. When
stopping on a hill, use the brakes, or parking
brake to hold the vehicle in place.
136

Wiper Activated Headlamps
This feature, if equipped, will automatically
activate the headlamps and parking lamps after
the windshield wipers have been in use for
about 30 seconds and when all of the following
conditions are met.
The exterior lamp control is in AUTO.
The headlamps have not already been
activated by automatic lighting.
The automatic lighting feature has not been
disabled using the exterior lamp control.
SeeExterior Lamps on page 181for additional
information.
If the wipers are activated for over 30 seconds
and the exterior lamp control is in the parking
lamps position, or the automatic lighting feature
has been disabled using the exterior lamp control,
a HEADLAMPS SUGGESTED message will
appear on the Driver Information Center,
if equipped.
Headlamps on Reminder
If you turn the ignition to LOCK while leaving the
lamps on, you will hear a warning chime once
the driver’s door is opened.
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 will make front parking and
turn signal lamps come on in daylight when the
following conditions are met:
The ignition is on.
The exterior lamps control is off.
182

Overhead Console Switchbank
The overhead console switchbank is located in the
overhead console. This switchbank may include
the following:
Power Sliding Door(s)/Override Switch(es).
SeePower Sliding Door (PSD) on page 112.
Power Rear Quarter Windows. SeePower
Rear Quarter Windows on page 123.
Ultrasonic Rear Parking Assist (URPA)
Disable Switch. SeeUltrasonic Rear Parking
Assist (URPA) on page 188.
If your vehicle does not have some of these
options, there will be a blank.
Ultrasonic Rear Parking
Assist (URPA)
If your vehicle is equipped with the Ultrasonic
Rear Parking Assist (URPA) system, it is
designed to help you park, while the vehicle is
in REVERSE (R). It operates only at very
low speeds, less than 3 mph (5 km/h). URPA can
help make parking easier and to help you avoid
colliding with objects such as parked vehicles.
The URPA system can detect objects up to 5 feet
(1.5 m) behind the vehicle, and tell you how
close these objects are from your rear bumper.
Your vehicle’s URPA operates when the shift lever
is moved into REVERSE (R) and the vehicle
speed is less than 3 mph (5 km/h). Four ultrasonic
sensors located at the rear bumper are used to
detect the distance to the object. The URPA
display is located inside the vehicle, near the rear
window. It has three color-coded lights used to
provide distance and system information to
the driver.
188

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 will ash 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 ashing &
continuous chime1 ft 0.3 m
A chime will sound the rst 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 may ash 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
rear bumper and then driving forward at least
15 mph (25 km/h), the display continues to ash
red, see your dealer.
If a trailer was attached to your vehicle, or a
bicycle or an object was on the back of, or hanging
out of your liftgate during your last drive cycle,
the light may also ash red. The light will continue
to ash whenever in REVERSE (R) until your
vehicle is driven forward at least 15 mph (25 km/h)
without any obstructions behind the vehicle.
190

Power Outlet 115 Volt Alternating
Current
Your vehicle may have a power outlet that can
be used to plug in auxiliary electrical equipment
with a maximum limit of 150 watts. If you try to
use equipment that requires more than the limit,
a protection circuit will cut the power supply.
To reset the outlet, unplug the item and plug it
back in or turn the ignition to LOCK or
ACCESSORY and then back on. The power
will automatically restart when equipment that
operates within the limit is plugged in.The power outlet is
located behind the
third row seats on the
passenger’s side
rear quarter trim panel.
The power outlet is not designed for the following
electrical equipment and may not work properly
if these items are plugged into the power outlet:
Equipment with high initial peak wattage
such as: compressor-driven refrigerators
and electric power tools.
Other equipment requiring an extremely
stable power supply such as:
microcomputer-controlled electric blankets,
touch sensor lamps, etc.
192

Passenger Safety Belt Reminder
Light
Several seconds after the key is turned to RUN or
START, a chime will come on for several seconds
to remind the front passenger to buckle their
safety belt. This would only occur if a passenger is
detected by the passenger sensing system. See
Passenger Sensing System on page 86for more
information. The passenger safety belt light will also
come on and stay on for several seconds, then it
will ash for several more.
You should have the
passenger buckle their
safety belt.
This light and chime reminder will be repeated if
the ignition is on, the vehicle is in motion, the
passenger is still unbuckled and the passenger
airbag is enabled.
If the passenger’s safety belt is buckled, neither
the chime nor the light will come on.
Airbag Readiness Light
There is an airbag readiness light on the
instrument panel, which shows the airbag symbol.
The system checks the airbag’s electrical
system for malfunctions. The light comes on if
there is an electrical problem. The system check
includes the airbag sensor, the airbag modules,
the wiring and the diagnostic module. For
more information on the airbag system, see
Airbag System on page 76.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds.
Then the light should go
out. This means the
system is ready.
If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.
210

Fuses Usage
1 Right High-Beam
2 Fuel Pump
3 Diode
BLANK Not Used
BLANK Not Used
4 Left High-Beam
BLANK Not Used
BLANK Not Used
BLANK Not Used
5 Not Used
6 Air Conditioning Clutch
7 Horn
8 Left Low-Beam
9Powertrain Control Module,
Electronic Throttle Control
10 Not Used
11 Transmission Solenoid
12 Right Low-BeamFuses Usage
13 Anti-lock Brake System
14 Powertrain Control Module Ignition
15 Electronic Ignition
16 Fuel Injector
17Climate Control, RPA, Cruise
Control
18 Electronic Throttle Control
19 Engine Sensor, Evaporator
20 Airbag
21 Not Used
22 Not Used
23 Auxiliary Power
24 Front Windshield Washer
25 AC/DC Inverter
26 Rear Blower
27 Front Blower
28 Front Windshield Wiper
501