warning light GMC CANYON 2009 User Guide

Charging System Light
This light comes on briey
when the ignition key is
turned to START, but
the engine is not running,
as a check to show it
is working.
If it does not, have the vehicle serviced by your
dealer/retailer.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a
problem with the charging system. A charging system
message in the Driver Information Center (DIC) can also
appear. SeeDIC Warnings and Messages on page 3-38
for more information. This light could indicate that
there are problems with a generator drive belt, or that
there is an electrical problem. Have it checked right
away. If the vehicle must be driven a short distance with
the light on, turn off accessories, such as the radio
and air conditioner.
Up-Shift Light
The vehicle may have an
up-shift light.
When this light comes on, shift to the next higher gear
if weather, road, and traffic conditions allow.
SeeManual Transmission Operation on page 2-25for
more information.
3-26

Brake System Warning Light
The vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part
can still work and stop the vehicle. For good braking
though, both parts need to be working well.
If the warning light comes on, there could be a brake
problem. Have the brake system inspected right away.
This light comes on briey when the ignition key is
turned to ON/RUN. If it does not, have it xed so it will
be ready to warn if there is a problem.When the ignition is on, the brake system warning light
comes on when the parking brake is set. SeeParking
Brake on page 2-31for more information. The light stays
on if the parking brake does not release fully. If it stays
on after the parking brake is fully released, it means
there is a brake problem.
If the light comes on while driving, pull off the road and
stop. The brake pedal might be harder to push, or it
might go closer to the oor. It can take longer to stop.
If the light is still on, have the vehicle towed for service.
SeeTowing Your Vehicle on page 4-40.
{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service. United StatesCanada
3-27

Antilock Brake System (ABS)
Warning Light
The Antilock Brake System
(ABS) light comes on
briey when the engine is
started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is not
on, the vehicle still has brakes, but not antilock brakes.
If the regular brake system warning light is also on,
the vehicle does not have antilock brakes and there is a
problem with the regular brakes. SeeBrake System
Warning Light on page 3-27.
SeeDIC Warnings and Messages on page 3-38for all
brake related DIC messages.
StabiliTrak®/Traction Control
System (TCS) Warning Light
The StabiliTrak and
Traction Control System
(TCS) indicator/warning
light comes on briey while
starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
The light ashes while the StabiliTrak system and TCS
are working to assist the driver with directional control
of the vehicle in difficult driving conditions.
If the StabiliTrak system and TCS light comes on and
stays on while driving and a TRACTION FAULT or
SERVICE STAB SYS message displays on the DIC,
the vehicle needs service.
The light also comes on steady when the StabiliTrak
system and/or TCS are turned off. The DIC also displays
a TRAC OFF and/or STAB SYS OFF message. If the
TCS is off, wheel spin is not limited. If the StabiliTrak
system is off, the system does not assist the driver with
directional control of the vehicle. The light turns off when
the TCS and StabiliTrak system are turned back on.
3-28

SeeStabiliTrak®System on page 4-6,Traction Control
System (TCS) on page 4-8andDIC Warnings and
Messages on page 3-38for more information.
Engine Coolant Temperature Gage
This gage shows the
engine coolant
temperature.
If the gage pointer is near the top of the gage, the
engine is too hot. It means that the engine coolant has
overheated. If the vehicle has been operating under
normal driving conditions, pull the vehicle off the road,
stop the vehicle and turn off the engine as soon as
possible.
SeeEngine Overheating on page 5-32for more
information.
Tire Pressure Light
For vehicles with a tire
pressure light, this light
comes on briey when the
engine is started and
provides information about
tire pressures and the
Tire Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is signicantly
underinated.
A tire pressure message in the Driver Information Center
(DIC), can accompany the light. SeeDIC Warnings and
Messages on page 3-38for more information. Stop and
check the tires as soon as it is safe to do so. If a tire is
underinated, inate to the proper pressure. SeeTires on
page 5-54for more information.
When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the
Tire Pressure Monitor System. The light ashes for
about a minute and stays on steady for the remainder of
the ignition cycle. This sequence repeats with every
ignition cycle. SeeTire Pressure Monitor System
on page 5-63for more information.
3-29

DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct
the condition. Multiple messages may appear
one after another. The messages are displayed for
several seconds each.
Some messages may not require immediate action, but
you should press and release the trip odometer reset
stem to acknowledge that you received the messages
and to clear them from the display. Each message must
be acknowledged individually.
Some messages cannot be cleared from the DIC display
because they are more urgent. These messages require
action before they can be cleared. You should take any
messages that appear on the display seriously and
remember that clearing the messages only makes the
messages disappear, not correct the problem.
The following are the possible messages that can be
displayed and some information about them.
AC (Air Conditioning) OFF
This message displays when the engine coolant
temperature is too high and the air conditioning in your
vehicle needs to be turned off. SeeEngine Overheating
on page 5-32andClimate Control System on
page 3-18for more information. This message displays
along with the ENG HOT message.
ABS (Antilock Brake System) FAULT
This message displays if there is a problem with the
Antilock Brake System (ABS). Check the ABS as soon as
possible and have your vehicle serviced by your dealer/
retailer. SeeBrakes on page 5-36andAntilock Brake
System (ABS) Warning Light on page 3-28for more
information. Press and release the reset stem to
acknowledge the message and clear it from the display.
BRAKES
This message displays if there is a problem with the
brakes. Check the brakes as soon as possible and have
your vehicle serviced by your dealer/retailer. SeeBrakes
on page 5-36andBrake System Warning Light on
page 3-27for more information. Press and release the
reset stem to acknowledge the message and clear it from
the display.
CHANGE OIL
This message displays when the oil needs to be
changed. Check the oil in your vehicle as soon as
possible and have your vehicle serviced by your
dealer/retailer. SeeEngine Oil on page 5-15and
Scheduled Maintenance on page 6-4for more
information. Press and release the reset stem to
acknowledge the message and clear it from the display.
3-38

OIL
This message displays when the oil pressure is low.
SeeOil Pressure Light on page 3-32andEngine Oil
on page 5-15for more information.
PARK BRK (Brake)
This message displays when the parking brake is set.
SeeParking Brake on page 2-31andBrake System
Warning Light on page 3-27for 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/retailer 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/retailer. SeeFour-Wheel Drive on page 2-26for
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 a part on the Tire Pressure
Monitor System (TPMS) is not working properly. The tire
pressure light also ashes and then remains on during
the same ignition cycle. SeeTire Pressure Light on
page 3-29. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 5-65for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
SERV (Service) VEH (Vehicle)
This message displays if your vehicle needs service.
Have your vehicle serviced by your dealer/retailer
as soon as possible.
3-40

SERVICE CHARG (Charge)
SYS (System)
This message displays if there is a problem with the
battery charging system. Under certain conditions, the
battery warning light may also turn on in the instrument
panel cluster. SeeCharging System Light on page 3-26.
The battery will not be charging at an optimal rate and the
vehicle will lose the ability to enter the fuel economy
mode. The vehicle is safe to drive, however have the
electrical system checked by your dealer/retailer.
Press and release the reset stem to acknowledge the
message and clear it from the display.
SERVICE STAB (Stability) SYS
(System)
This message displays if there is a problem with the
StabiliTrak system. Have your vehicle serviced by your
dealer/retailer. SeeStabiliTrak
®System on page 4-6
for more information.
STAB (Stability) SYS (System) OFF
This message displays when the StabiliTrak system is
turned off. SeeStabiliTrak®System on page 4-6for
more information.
TRAC (Traction) OFF
This message displays when the Traction Control
System (TCS) is turned off by pressing the StabiliTrak
button. SeeStabiliTrak
®System on page 4-6for more
information.
TRACTION FAULT
This message will display if there is a problem with the
TCS. Have your vehicle serviced by your dealer/retailer.
SeeTraction Control System (TCS) on page 4-8for
more information. Press and release the reset stem to
acknowledge the message and clear it from the display.
TURN SIGNAL
This message displays when the turn signal is on for
about 0.75 miles (1.2 km) of travel. Press and release
the reset stem to acknowledge the message and clear it
from the display.
3-41

Braking
SeeBrake System Warning Light on page 3-27.
Braking action involves perception time and reaction
time. Deciding to push the brake pedal is perception
time. Actually doing it is reaction time.
Average reaction time is about three-fourths of a second.
But that is only an average. It might be less with
one driver and as long as two or three seconds or more
with another. Age, physical condition, alertness,
coordination, and eyesight all play a part. So do alcohol,
drugs, and frustration. But even in three-fourths of a
second, a vehicle moving at 60 mph (100 km/h) travels
66 feet (20 m). That could be a lot of distance in an
emergency, so keeping enough space between the
vehicle and others is important.
And, of course, actual stopping distances vary greatly
with the surface of the road, whether it is pavement or
gravel; the condition of the road, whether it is wet, dry, or
icy; tire tread; the condition of the brakes; the weight of
the vehicle; and the amount of brake force applied.Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic. This is
a mistake. The brakes might not have time to cool
between hard stops. The brakes will wear out much
faster with a lot of heavy braking. Keeping pace with
the traffic and allowing realistic following distances
eliminates a lot of unnecessary braking. That means
better braking and longer brake life.
If the engine ever stops while the vehicle is being driven,
brake normally but do not pump the brakes. If the brakes
are pumped, the pedal could get harder to push down.
If the engine stops, there will still be some power brake
assist but it will be used when the brake is applied.
Once the power assist is used up, it can take longer to
stop and the brake pedal will be harder to push.
Adding non-dealer/non-retailer accessories can
affect vehicle performance. SeeAccessories and
Modifications on page 5-3.
4-4

Antilock Brake System (ABS)
This vehicle has the Antilock Brake System (ABS), an
advanced electronic braking system that will help prevent
a braking skid.
When the engine is started and the vehicle begins to
drive away, ABS checks itself. A momentary motor or
clicking noise might be heard while this test is going on.
This is normal.
If there is a problem with
the ABS, this warning light
stays on. SeeAntilock
Brake System (ABS)
Warning Light on
page 3-28.Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that the wheels are slowing down.
If one of the wheels is about to stop rolling, the computer
will separately work the brakes at each front wheel
and at both rear wheels.
ABS can change the brake pressure to each wheel, as
required, faster than any driver could. This can help
the driver steer around the obstacle while braking hard.
As the brakes are applied, the computer keeps
receiving updates on wheel speed and controls braking
pressure accordingly.
Remember: ABS does not change the time needed to get
a foot up to the brake pedal or always decrease stopping
distance. If you get too close to the vehicle in front of you,
there will not be enough time to apply the brakes if that
vehicle suddenly slows or stops. Always leave enough
room up ahead to stop, even with ABS.
4-5

If there is a problem detected with StabiliTrak, a
SERVICE STAB SYS message displays on the Driver
Information Center (DIC). SeeDIC Warnings and
Messages on page 3-38for more information. When this
message is displayed, the system is not working.
Adjust your driving accordingly.
StabiliTrak and Traction Control (TCS) come on
automatically whenever the vehicle is started and the
systems are reset with each ignition cycle. However,
when the transfer case is placed in Four-Wheel-Low
mode, StabiliTrak is automatically disabled. See
Four-Wheel Drive on page 2-26for more information. It is
recommended to leave the system on for normal driving
conditions, but it may be necessary to turn the TCS
portion of the system off if the vehicle is stuck in sand,
mud, ice, or snow, and it is necessary to″rock″the
vehicle to attempt to free it. If traction control is turned off,
only the brake-traction control portion of traction control
will work. The engine speed management will be
disabled. In this mode, engine power is not reduced
automatically and the drive wheels can spin more freely.
This can cause the brake-traction control to activate
constantly. SeeIf Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow on page 4-31.The StabiliTrak/TCS light
will ash on the instrument
panel cluster when the
TCS system or StabiliTrak
is both on and activated.
The StabiliTrak/TCS
button is located on
the instrument panel.
To turn off TCS, press and release the StabiliTrak/TCS
button. The StabiliTrak/TCS light comes on in the
instrument panel cluster, and TRAC OFF comes on
the DIC. To turn TCS back on, press and release the
StabiliTrak/TCS button.
4-7