sensor CADILLAC SRX 2008 1.G Owners Manual

In addition, your vehicle has a dual-stage driver airbag.
Dual-stage airbags adjust the restraint according to
crash severity. Your vehicle has electronic frontal
sensors, which help the sensing system distinguish
between a moderate frontal impact and a more severe
frontal impact. For moderate frontal impacts, dual-stage
airbags inate at a level less than full deployment.
For more severe frontal impacts, full deployment occurs.
Your vehicle also has a dual-depth passenger airbag
that adjusts the restraint according to crash severity and
seat location using electronic frontal sensor(s) and other
special sensors which enable the sensing system to
monitor the position of the front passenger seat. The
passenger airbag inates to a reduced depth when
the passenger seat is in a forward position. For more
rearward front seating positions, the passenger airbag
may inate to an increased depth (a full deployment),
based on the crash severity measured early in the event.
(Always wear your safety belt, even with frontal airbags.)
Seat-mounted side impact and roof-rail airbags are
intended to inate in moderate to severe side crashes.
In addition, these roof-rail airbags are intended to
inate during a rollover or in a severe frontal impact.
Seat-mounted side impact and roof-rail airbags will
inate if the crash severity is above the system’s
designed threshold level. The threshold level can
vary with specic vehicle design.Seat-mounted side impact airbags are not intended to
inate in frontal impacts, near-frontal impacts, rollovers,
or rear impacts. Roof-rail airbags are not intended to
inate in rear impacts. A seat-mounted side impact
airbag is intended to deploy on the side of the vehicle
that is struck. Both roof-rail airbags will deploy when
either side of the vehicle is struck or if the sensing
system predicts that the vehicle is about to roll over,
or in a severe frontal impact.
In any particular crash, no one can say whether an
airbag should have inated simply because of the
damage to a vehicle or because of what the repair costs
were. For frontal airbags, ination is determined by what
the vehicle hits, the angle of the impact, and how quickly
the vehicle slows down. For seat-mounted side impact
and roof-rail airbags, deployment is determined by the
location and severity of the side impact. In a rollover
event, roof-rail airbag deployment is determined by
the direction of the roll.
1-62

The passenger sensing system will turn off the right
front passenger’s frontal airbag under certain conditions.
The driver’s airbags 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. The sensors
are designed to detect the presence of a properly-seated
occupant and determine if the right front passenger’s
frontal airbag 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 children be secured in a rear seat,
including: an infant or a child riding in a rear-facing
child restraint; a child riding in a forward-facing child
seat; an older child riding in a booster seat; and children,
who are large enough, using safety belts.
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.
{CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s airbag inates. This is because
the back of the rear-facing child restraint
would be very close to the inating airbag.
Even though the passenger sensing system is
designed to turn off the right front passenger’s
frontal airbag if the system detects a rear-facing
child restraint, no system is fail-safe, and no
one can guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend that
rear-facing child restraints be secured in a
rear seat, even if the airbag is off.
If you secure a forward-facing child restraint
in the right front seat, always move the front
passenger seat as far back as it will go. It is
better to secure the child restraint in a rear seat.
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Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. Your dealer/retailer and the service
manual have information about servicing your vehicle
and the airbag system. To purchase a service manual,
seeService Publications Ordering Information on
page 7-17.
{CAUTION:
For up to 10 seconds after the ignition is turned
off and the battery is disconnected, an airbag
can still inate during improper service. You
can be injured if you are close to an airbag when
it inates. Avoid yellow connectors. They are
probably part of the airbag system. Be sure to
follow proper service procedures, and make
sure the person performing work for you is
qualied to do so.
Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to or change
about 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. Changing or moving any parts
of the front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel, instrument
panel, roof-rail airbag modules, ceiling headliner
or pillar garnish trim, front sensors, side impact
sensors, rollover sensor module, or airbag wiring
can affect the operation of the airbag system.
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In addition, your vehicle has a passenger sensing
system for the right front passenger’s position, which
includes sensors that are part of the passenger’s
seat. The passenger sensing system may not
operate properly if the original seat trim is replaced
with non-GM covers, upholstery or trim, or with GM
covers, upholstery or trim designed for a different
vehicle. Any object, such as an aftermarket seat
heater or a comfort enhancing pad or device,
installed under or on top of the seat fabric, could also
interfere with the operation of the passenger sensing
system. This could either prevent proper deployment
of the passenger airbag(s) or prevent the passenger
sensing system from properly turning off the
passenger airbag(s). SeePassenger Sensing
System on page 1-65.
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 7-2.
If your vehicle has rollover roof-rail airbags, see
Different Size Tires and Wheels on page 5-70
for additional important information.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: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. See
Customer Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service
manual have information about the location of the
airbag sensors, sensing and diagnostic module and
airbag wiring.
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If you shift the transmission out of PARK (P) while
the power function is in progress, the liftgate power
function will continue to completion. If you shift the
transmission out of PARK (P) and accelerate before
the power liftgate latches closed, the liftgate may
reverse to the open position. Cargo could fall out of
the vehicle. Always make sure the power liftgate
is closed and latched before you drive away.
If you power open the liftgate and the liftgate support
struts have lost pressure, the lights will ash and a
chime will sound. The liftgate will hold open temporarily,
then slowly close. See your dealer for service before
using the liftgate.Obstacle Detection Features
If the liftgate encounters an obstacle during a power
open or close cycle, a warning chime will sound and the
liftgate will automatically reverse direction to the fully
closed or open position. After removing the obstruction,
the liftgate may be power opened or closed normally.
If the liftgate encounters multiple obstacles on the
same power cycle, the power function will deactivate,
and the liftgate will switch to manual operation.
The REAR ACCESS OPEN warning message in the
Driver Information Center (DIC) will indicate that
the liftgate is open. After removing the obstructions,
manually open the liftgate to the fully open position or
close the liftgate to the fully closed and latched position.
The liftgate will now resume normal power operation.
Your vehicle has an obstacle detection sensor located
on the rear edge of the rear quarter panel windows. If an
object is caught between the liftgate and the window
and presses against this sensor, the liftgate will reverse
direction and open fully. The liftgate will remain open
until it is activated again or closed manually.
2-14

Object Detection Systems
Ultrasonic Rear Parking
Assist (URPA)
If your vehicle has the Ultrasonic Rear Parking
Assist (URPA) system, it helps you park easier
and avoid other vehicles while in REVERSE (R).
It operates at speeds less than 3 mph (5 km/h).
It can determine how close objects are to the rear
bumper, up to 5 feet (1.5 m) behind your vehicle.
The distance sensors are located on the rear bumper.
{CAUTION:
The Ultrasonic Rear Parking Assist (URPA)
system does not replace driver vision.
It cannot detect:
objects that are below the bumper,
underneath the vehicle, or if they are
too close or far from the vehicle
children, pedestrians, bicyclists, or pets.
CAUTION: (Continued)
CAUTION: (Continued)
If you do not use proper care before and
while backing; vehicle damage, injury, or death
could occur. Even with URPA, always check
behind your vehicle before backing up. While
backing, be sure to look for objects and check
your vehicle’s mirrors.
The display is located
above the liftgate glass
and can be seen by
looking over your right
shoulder.
URPA uses three color-coded lights to provide
distance and system information.
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How the System Works
URPA comes on automatically when the shift lever is
moved into REVERSE (R). The rear display will then
briey illuminate to let you know the system is working.
URPA operates only at speeds less than 3 mph (5 km/h).
If you are above this speed, the red light on the rear
display will ash.
To be detected, objects must be at least 10 inches
(25.4 cm) off the ground and below liftgate level.
Objects must also be within 5 feet (1.5 m) from your
rear bumper. This distance may be less during warmer
or humid weather.
A single beep will sound the rst time an object is
detected between 20 inches (0.5 m) and 5 feet (1.5 m)
away. Beeping will occur for three seconds when
you are closer than 1 foot (0.3 m) from the object.
The following describes what will occur with the URPA
display as you get closer to a detected object:
Description English Metric
amber light 5 ft 1.5 m
amber/amber lights 40 in 1.0 m
amber/amber/red lights 20 in 0.5 m
amber/amber/red lights
ashing and beep for
three seconds1 ft 0.3 mThe system can be disabled using the Driver Information
Center (DIC). See “Parking Assist” underDIC Operation
and Displays on page 3-48.
When the System Does Not Seem to
Work Properly
The driver disables the system.
The parking brake pedal is depressed.
The ultrasonic sensors are not clean. Keep your
vehicle’s rear bumper free of mud, dirt, snow,
ice and slush. For cleaning instructions, see
Washing Your Vehicle on page 5-94.
A trailer was attached to your vehicle, or a bicycle
or an object was hanging out of your liftgate
during your last drive cycle, the red light may
illuminate. Once the attached object is removed,
URPA will return to normal operation.
A tow bar is attached to your vehicle.
The vehicle’s bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take your vehicle to your
dealer/retailer.
2-46

Light Sensor
The light sensor for the DRL and AUTO headlamp
feature is located on top of the instrument panel. If you
cover the sensor, it will prevent it from sensing light,
and the exterior lamps may come on whenever
the ignition is on.
Fog Lamps
Use the fog lamps for better vision in foggy or misty
conditions.
The fog lamp controls are located on the turn
signal/multifunction lever.
-(Fog Lamps):The band with this symbol is used to
turn the fog lamps on and off.
The parking lamps must be on for the fog lamps
to work.
To turn the fog lamps on, turn the fog lamp band on the
lever up to the dot and release it. The band will return
to its original position.
To turn the fog lamps off, turn the fog lamp band up to
the dot and release it. The band will return to its original
position, and the fog lamps will turn off. If the high-beam
headlamps are turned on, the fog lamps will also turn off.
They will turn back on again when you switch back to
low-beam headlamps.
Some localities have laws that require the headlamps to
be on along with the fog lamps.
3-18

Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes after the
ignition is turned to LOCK/OFF, if the parking lamps or
headlamps have been left on. This protects against
draining the battery. The battery saver does not work if
the headlamps are turned on after the ignition is turned
to LOCK/OFF.
To keep the lamps on for more than 10 minutes, turn
the lamps back on with the exterior lamp control.
Instrument Panel Brightness
Turn the knob clockwise
or counterclockwise to
brighten or dim the
interior lights.
To turn on the dome lamps, turn the knob completely
clockwise as far as it will go. The dome lamps stay
on until they are turned off.
Entry Lighting
The entry lighting system turns on the reading and dome
lamps and the backlighting to the exterior lamp control,
when a door is opened or if the Remote Keyless Entry
(RKE) transmitter unlock button is pressed. If activated
by the RKE, the lighting stays on for about 25 seconds.
The entry lighting system uses the light sensor on the
instrument panel; so it must be dark outside in order for
the lamps to turn on. The lamps turn off about 25 seconds
after the last door is closed. They dim then turn off if the
ignition key is turned to ON/RUN. They immediately turn
off if the power locks are used.
Parade Dimming
This feature does not let the instrument panel
backlight dim during daylight hours while the key is in
the ignition and the headlamps are on. Parade dimming
automatically works with the light sensor, located on top
of the dashboard. If it is dark enough outside and the
parking lamps are on, the backlight on the instrument
panel can be adjusted by turning the instrument panel
brightness knob clockwise or counterclockwise to
brighten or dim the lighting. SeeInstrument Panel
Brightness on page 3-19.
3-19

PASS (Passenger’s Climate Control):Press this
button to turn the passenger’s climate control system on
or off. Then press the up or down buttons to choose the
desired setting. Pressing the button again automatically
sets the passengers temperature to the drivers setting.
Turning the passenger’s temperature display off does not
turn off the climate control system for the passenger.
Recirculation Operation
There are three options for bringing air into the
climate control system. They are controlled by
pressing the center button on the climate control panel.
The climate control display indicates one of the following
three modes:
9(Auto Air Inlet):This mode lets the automatic
climate control system choose the best air inlet position
for cooling or warming the vehicle. To have full automatic
climate control, the fan and mode controls must be set to
the AUTO position. Generally, recirculation will only
automatically be selected on hot days.Your vehicle may have an optional Air Quality Sensor.
To activate the air quality sensor, the auto air inlet setting
must be used. For more information, see Air Quality
Sensor found later in this section.
?(Recirculation):This mode recirculates air inside
the vehicle and keeps outside air from coming into
the vehicle. It can be used to help cool the vehicle more
quickly or to prevent odors from entering the vehicle.
Recirculation is not available in the defrost mode.
It is also cancelled when oor or defog mode is selected.
In some conditions using recirculation for long periods
of time can cause the air inside the vehicle to become
too dry or stuffy. To prevent this from happening,
after the air in the vehicle has cooled, select auto
air inlet or outside air.
:(Outside Air):This mode pulls fresh air from
outside the vehicle. Outside air is always selected
in defrost mode to prevent fogging.
3-25