2006 CHEVROLET TRAIL BLAZER check engine

If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. SeeFilling the Tank on page 5-8. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to x any
mechanical or electrical problems that may have
developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the check
engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down.
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The diagnostic system is designed to evaluate critical
emission control systems during normal driving.
This may take several days of routine driving. If you
have done this and your vehicle still does not pass the
inspection for lack of OBD system readiness, your
GM dealer can prepare the vehicle for inspection.
Oil Pressure Gage
The oil pressure gage shows the engine oil pressure
in psi (pounds per square inch) when the engine
is running. Canadian vehicles indicate pressure in
kPa (kilopascals).
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused
by a dangerously low oil level or other problems causing
low oil pressure. United States
Canada
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Check Gages Warning Light
The check gages light will
come on briey when you
are starting the engine.
If the light comes on and stays on while you are driving,
check your coolant temperature and engine oil
pressure gages to see if they are in the warning zones.
Gate Ajar Light
If this light comes on, your
liftgate or liftglass is not
completely shut.
Close the liftgate or liftglass. Never drive with the liftgate
or liftglass even partially open.
Fuel Gage
When the ignition is on, the fuel gage tells you about
how much fuel you have remaining.
United StatesCanada
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Here are four things that some owners ask about. None
of these show a problem with your fuel gage:
At the gas station, the gas pump shuts off before
the gage reads full.
It takes a little more or less fuel to ll up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to
ll the tank.
The gage moves a little when you turn a corner or
speed up.
The gage doesn’t go back to empty when you turn
off the ignition.
Low Fuel Warning Light
The light next to the fuel gage will come on briey when
you are starting the engine.
This light comes on when the fuel tank is low on fuel.
To turn it off, add fuel to the fuel tank.
Check Gas Cap Light
If equipped, this light will
come on if your gas cap is
not securely fastened.
SeeMalfunction Indicator Lamp on page 3-42for more
information.
Driver Information Center (DIC)
Your vehicle may have this feature. The Driver
Information Center (DIC) display is located on the
instrument panel cluster, below the speedometer. If your
vehicle has DIC buttons, they are located on the
steering wheel. The DIC can display information such
as the trip odometer, fuel economy, customization
features, and warning/status messages.
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BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked by your GM dealer as soon as possible.
SeeVoltmeter Gage on page 3-38. Press the select
button to acknowledge this message and clear it from
the DIC display.
CHANGE ENGINE OIL
This message is displayed when the engine oil needs to
be changed and service is required for your vehicle.
SeeScheduled Maintenance on page 6-4andEngine
Oil on page 5-18for more information. Also seeEngine
Oil Life System on page 5-23for information on how
to reset the message. This message will clear itself after
10 seconds until the next ignition cycle.
CHECK TIRE PRESSURE
If your vehicle has a Tire Pressure Monitor (TPM)
system, and if a low tire pressure is detected in any of
the vehicle’s tires, this message will appear on the
DIC, along with a chime. Press the select button
to acknowledge this message and clear it from the DIC
display. The message will appear at each ignition
cycle until the tires are inated to the correct ination
pressure.
CHECK WASHER FLUID
If the washer uid level is low, this message will appear
on the DIC. Adding washer uid to the windshield
washer uid reservoir will clear the message. See
Windshield Washer Fluid on page 5-40. Press the select
button to acknowledge this message and clear it from
the DIC display.
CURB VIEW ACTIVATED
The CURB VIEW ACTIVATED message is displayed
when the passenger outside rearview mirror moves into
the curb view position. SeeOutside Curb View Assist
Mirror on page 2-48for more information.
DRIVER DOOR AJAR
If the driver’s door is not fully closed, this message will
appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Press the select
button to acknowledge this message and clear it from
the DIC display.
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ENGINE COOLANT HOT/ENGINE
OVERHEATED
Notice:If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If
an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon
as possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating on
page 5-31for more information.
If the cooling system temperature gets hot, this message
will appear in the DIC and you will hear a chime. See
Engine Overheating on page 5-31for the proper course
of action. This message will clear when the coolant
temperature drops to a safe operating temperature.
FUEL LEVEL LOW
If the fuel level is low in the vehicle’s gas tank this
message will appear on the DIC and you will hear a
chime. Refuel as soon as possible. Press the select
button to acknowledge this message and clear it from
the DIC display. SeeLow Fuel Warning Light on
page 3-50,Filling the Tank on page 5-8andFuel on
page 5-5for more information.
ICE POSSIBLE
If the outside temperature reaches a level where ice
could form on the roadway, this message may appear
on the DIC. If the temperature rises to a safe level,
the message will clear. Press the select button to
acknowledge this message and clear it from the
DIC display.
KEY FOB # BATTERY LOW
If a remote keyless entry transmitter battery is low,
this message will appear on the DIC. The battery
needs to be replaced in the transmitter. See “Battery
Replacement” underRemote Keyless Entry System
Operation on page 2-6. Press the select button to
acknowledge this message and clear it from the DIC
display.
LEFT REAR DOOR AJAR
If the driver’s side rear door is not fully closed this
message will appear on the display and you will hear a
chime. Stop and turn off the vehicle, check the door
for obstacles, and close the door again. Check to see if
the message still appears on the DIC. Press the
select button to acknowledge this message and clear it
from the DIC display.
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OIL PRESSURE LOW/STOP ENGINE
Notice:If you drive your vehicle while the engine
oil pressure is low, severe engine damage may
occur. If a low oil pressure warning appears on the
Driver Information Center (DIC), stop the vehicle
as soon as possible. Do not drive the vehicle until
the cause of the low oil pressure is corrected.
SeeEngine Oil on page 5-18for more information.
If low oil pressure levels occur, this message will
be displayed on the DIC. Stop the vehicle as soon as
safely possible and do not operate it until the cause
of the low oil pressure has been corrected. Check your
oil as soon as possible and have your vehicle serviced
by your GM dealer. SeeEngine Oil on page 5-18.
PASSENGER DOOR AJAR
If the passenger’s door is not fully closed, this message
will appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Press the select
button to acknowledge this message and clear it from
the DIC display.
REAR ACCESS OPEN
If the liftgate or liftglass is open while the ignition is in
RUN, this message will appear on the DIC and you will
hear a chime. Turn off the vehicle and check the
liftgate and liftglass. SeeLiftgate/Liftglass on page 2-13.
Restart the vehicle and check for the message on the
DIC display. Press the select button to acknowledge this
message and clear it from the DIC display.
RIGHT REAR DOOR AJAR
If the passenger’s side rear door is not fully closed this
message will appear on the display and you will
hear a chime. Stop and turn off the vehicle, check the
door for obstacles, and close the door again. Check
to see if the message still appears on the DIC. Press the
select button to acknowledge this message and clear
it from the DIC display.
SERVICE AIR BAG
If there is a problem with the airbag system this
message will be displayed on the DIC. Have your
GM dealer inspect the system for problems. SeeAirbag
Readiness Light on page 3-34andAirbag System on
page 1-58for more information. Press the select button
to acknowledge this message and clear it from the
DIC display.
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SERVICE BRAKE SYSTEM
If a problem occurs with the brake system this message
will appear on the DIC. If this message appears, stop
as soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
See your GM dealer.
SERVICE STABILITRAK
If you ever see the SERVICE STABILITRAK message,
it means there may be a problem with your StabiliTrak®
system. If you see this message, try to reset the
system by performing the following: stop; turn off the
engine; then start the engine again. If the SERVICE
STABILITRAK message still comes on, it means there
is a problem. You should see your GM dealer for
service. The vehicle is safe to drive, however, you do
not have the benet of StabiliTrak
®, so reduce your
speed and drive accordingly. Press the select button to
acknowledge this message and clear it from the
DIC display.
SERVICE TIRE MONITOR
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will be displayed if one or more of
the tire monitor sensors have malfunctioned or if all of
the tire monitor sensors have not been programmed
successfully. See your GM dealer. Press the select
button to acknowledge this message and clear it from
the DIC display. The message will reappear at each
ignition cycle until the system has been serviced.
STABILITRAK ACTIVE
The STABILITRAK ACTIVE message will be displayed
anytime the system activates to maintain vehicle
stability. Any combination of engine speed management,
brake traction control, and stability control will display
the STABILITRAK ACTIVE message on the DIC.
STABILITRAK NOT READY
The STABILITRAK NOT READY message may be
displayed if driving conditions delay system initialization.
This is normal. Once the system initializes, the
STABILITRAK NOT READY message will no longer be
displayed on the DIC.
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