sensor GMC CANYON 2007 Owner's Manual

When Should an Airbag Inate?
The driver’s and right front passenger’s frontal
airbags are designed to inate in moderate
to severe frontal or near-frontal crashes. But
they are designed to inate only if the impact
exceeds a predetermined deployment threshold.
Deployment thresholds take into account a variety
of desired deployment and non-deployment
events and are used to predict how severe a
crash is likely to be in time for the airbags to inate
and help restrain the occupants. Whether your
frontal airbags will or should deploy is not based
on how fast your vehicle is traveling. It depends
largely on what you hit, the direction of the impact,
and how quickly your vehicle slows down.
In addition, your vehicle has “dual stage” frontal
airbags, which adjust the restraint according
to crash severity. Your vehicle has electronic
frontal sensors which help the sensing system
distinguish between a moderate and a more
severe frontal impact. For moderate frontal
impacts, these airbags inate at a level
less than full deployment. For more severe
frontal impacts, full deployment occurs.If the front of your vehicle goes straight into a wall
that doesn’t move or deform, the threshold level
for the reduced deployment is about 8 to 16 mph
(12.9 to 25.7 km/h), and the threshold level for
a full deployment is about 19 to 24 mph
(30.6 to 38.6 km/h) if the other sensors do not
over-ride this. 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.
82

Frontal airbags (driver and right front passenger)
are not intended to inate during vehicle
rollovers, rear impacts, or in many side impacts.
If your vehicle has side impact airbags, it has
electronic side sensors. The side impact airbags
are intended to inate in moderate to severe
side crashes. A side impact airbag will inate if the
crash severity is above the system’s designed
“threshold level.” The threshold level can vary with
specic vehicle design. Side impact airbags are
not intended to inate in frontal or near-frontal
impacts, rollovers or rear impacts. Both side
impact airbags will deploy when either side of the
vehicle is struck.
Your vehicle has seat position sensors which
enable the sensing system to monitor the position
of the driver’s seat and the right front passenger’s
seat. Seat position sensors provide information
that is used to determine if the airbags should
deploy at a reduced level or at full deployment.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 in frontal or near-frontal impacts. For
side impact airbags, ination is determined by the
location and severity of the impact.
The airbag system is designed to work properly
under a wide range of conditions, including off-road
usage. Observe safe driving speeds, especially
on rough terrain. As always, wear your safety belt.
SeeOff-Road Driving on page 256for more tips
on off-road driving.
83

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 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 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.
There is a label on your sun visor that 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.
CAUTION: (Continued)
CAUTION: (Continued)
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
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 the rear seat, even if the airbag is off.
If you need to 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.
87

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 456.
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,
instrument panel, ceiling headliner, ceiling
and pillar garnish trim, roof-mounted airbag
modules, 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 456.
93

Headlamps on Reminder
If a door is open, a reminder chime will sound when
the headlamps or parking lamps are manually
turned on and your key is out of the ignition. To turn
off the chime, turn the headlamp switch to off and
then back on. In the automatic mode, the
headlamps turn off once the ignition is in LOCK.
If your vehicle was rst sold in Canada and the
parking lamps are turned on manually, the Daytime
Running Lamps (DRL) will stay on.
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 rst sold in Canada.The DRL system will come on when the following
conditions are met:
The ignition is on.
The exterior lamps control is in AUTO.
The transmission is not in PARK (P) if you
have an automatic transmission.
The light sensor determines it is daytime.
Your vehicle will have either the parking lamps or
reduced intensity low beams used as the DRL.
When the DRL are on, only those lamps will be on.
The taillamps, sidemarkers, and other lamps will
not be on. The instrument panel will not be lit
up either.
When it begins to get dark, the headlamps will
automatically switch from DRL to the regular
headlamps.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
167

Automatic Headlamp System
When it is dark enough outside, the automatic
headlamp system will turn on after the
transmission has been shifted from PARK (P) to
DRIVE (D). The headlamps, taillamps, sidemarker,
parking lamps, roof marker lamps, and the
instrument panel lights will turn on at normal
brightness. The radio lights will become more dim
when the headlights are off compared to when
the headlights are on.
Your vehicle has a light sensor located on the
top of the instrument panel. Be sure it is not
covered, or the system will be on whenever the
ignition is on.
The system may also turn on the headlamps when
driving through a parking garage, heavy overcast
weather, or a tunnel. This is normal.There is a delay in the transition between the
daytime and nighttime operation of the Daytime
Running Lamps (DRL) and the automatic
headlamp system so that driving under bridges
or bright overhead street lights does not affect
the system. The DRL and automatic headlamp
system will only be affected when the light sensor
detects a change in lighting lasting longer than
the delay.
If you start your vehicle in a dark garage, the
automatic headlamp system will come on
immediately. Once you leave the garage, it will
take about one minute for the automatic headlamp
system to change to DRL if it is light outside.
During that delay, the instrument panel cluster
may not be as bright as usual. Make sure
the instrument panel brightness control is in the
full bright position. SeeInstrument Panel
Brightness on page 170.
168

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 tells you if there
is an electrical problem. The system check
includes the airbag sensors, the airbag modules,
the wiring and the crash sensing and diagnostic
module. For more information on the airbag
systems, seeAirbag 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.{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a few
seconds when you turn the ignition key to ON.
If the light does not come on then, have it xed so
it will be ready to warn you if there is a problem.
181

PARK BRK (Brake)
This message displays when the parking brake
is set. SeeParking Brake on page 130and
Brake System Warning Light on page 185for
more information. The message clears from the
display after the parking brake is released or
by pressing and releasing the reset stem.
REDUCED POWER
This message displays when the vehicle’s
engine power is reduced. Reduced engine power
can affect the vehicle’s ability to accelerate.
If this message is on, but there is no reduction
in performance, proceed to your destination.
The performance may be reduced the next time
the vehicle is driven. The vehicle may be driven at
a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime
this message stays on, the vehicle should be
taken to your dealer for service as soon as
possible. Press and release the reset stem to
acknowledge the message and clear it from
the display.
SERV (Service) 4WD (Four-Wheel Drive)
This message displays when there is a problem
with the transfer case control system. Check the
transfer case on your vehicle and have it serviced
by your dealer. SeeFour-Wheel Drive on page 126
for more information about the transfer case. Press
and release the reset stem to acknowledge the
message and clear it from the display.
SERV (Service) TPM
(Tire Pressure Monitor)
This message displays if any of the tire monitor
sensors have malfunctioned, if the tire monitor
sensors have not been programmed, or if
the recommended tire pressures are not
programmed. The tire pressure light also ashes
for one minute and then turns on solid until
the condition goes away or the system is serviced.
SeeTire Pressure Light on page 187. Press
and release the reset stem to acknowledge the
message and clear it from the display. This
message appears at each ignition cycle until the
system is serviced. See your dealer for service.
SeeTire Pressure Monitor System on page 378
for more information.
201

How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are
properly inated simply by looking at them. Radial
tires may look properly inated even when they
are underinated. Check the tire’s ination
pressure when the tires are cold. Cold means your
vehicle has been sitting for at least three hours
or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem.
Press the tire gage rmly onto the valve to
get a pressure measurement. If the cold tire
ination pressure matches the recommended
pressure on the Tire and Loading Information
label, no further adjustment is necessary. If the
ination pressure is low, add air until you reach the
recommended amount.
If you overll the tire, release air by pushing on
the metal stem in the center of the tire valve.
Recheck the tire pressure with the tire gage.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.
Tire Pressure Monitor System
Your vehicle has a Tire Pressure Monitor System
(TPMS). This system uses radio and sensor
technology to check tire pressure levels. TPMS
sensors are mounted onto each tire and wheel
assembly on your vehicle, except the spare tire.
The TPMS sensors monitor the air pressure
in your vehicle’s tires and transmit the tire pressure
readings to a receiver located in the vehicle.
When a low tire pressure condition is detected,
the TPMS will illuminate the low tire pressure
warning light located in the instrument panel
cluster, and at the same time display the LOW
TIRE warning message on the Driver Information
Center (DIC). The low tire pressure warning
light and the LOW TIRE warning message appear
at each ignition cycle until the tires are inated
to the correct ination pressure.
378

Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the
system is not operating properly. The TPMS
malfunction indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will ash for approximately
one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists.
When the malfunction indicator is illuminated, the
system may not be able to detect or signal low
tire pressure as intended. TPMS malfunctions may
occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS from
functioning properly. Always check the TPMS
malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow
the TPMS to continue to function properly.A Tire and Loading Information label, attached to
your vehicle, shows the size of your vehicle’s
original equipment tires and the correct ination
pressure for your vehicle’s tires when they are cold.
SeeLoading Your Vehicle on page 286, for an
example of the Tire and Loading Information
label and its location on your vehicle. Also see
Ination - Tire Pressure on page 377for additional
information.
Your vehicle’s TPMS can warn you about a low
tire pressure condition but it does not replace
normal tire maintenance. SeeTire Inspection and
Rotation on page 383,When It Is Time for
New Tires on page 385, andTires on page 369.
Notice:Do not use a tire sealant if your
vehicle has Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor
sensors.
380